HEADER    TRANSFERASE/INHIBITOR                   16-FEB-23   8G6Z              
TITLE     JAK2 CRYSTAL STRUCTURE IN COMPLEX WITH COMPOUND 13                    
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TYROSINE-PROTEIN KINASE JAK2;                              
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: JANUS KINASE 2,JAK-2;                                       
COMPND   5 EC: 2.7.10.2;                                                        
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: JAK2;                                                          
SOURCE   6 EXPRESSION_SYSTEM: SPODOPTERA FRUGIPERDA;                            
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 7108                                        
KEYWDS    INHIBITOR, COMPLEX, KINASE INHIBITOR, TRANSFERASE, TRANSFERASE-       
KEYWDS   2 INHIBITOR COMPLEX                                                    
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.T.MILLER,D.A.ELLIS                                                  
REVDAT   5   16-OCT-24 8G6Z    1       REMARK                                   
REVDAT   4   15-NOV-23 8G6Z    1       REMARK                                   
REVDAT   3   25-OCT-23 8G6Z    1       REMARK                                   
REVDAT   2   26-JUL-23 8G6Z    1       JRNL                                     
REVDAT   1   21-JUN-23 8G6Z    0                                                
JRNL        AUTH   H.M.GORDHAN,S.T.MILLER,D.C.CLANCY,M.INA,A.V.MCDOUGAL,        
JRNL        AUTH 2 D.K.CUTNO,R.V.BROWN,C.L.LICHOROWIC,J.M.STURDIVANT,K.A.VICK,  
JRNL        AUTH 3 S.S.WILLIAMS,M.A.DELONG,J.C.WHITE,C.C.KOPCZYNSKI,D.A.ELLIS   
JRNL        TITL   EYES ON TOPICAL OCULAR DISPOSITION: THE CONSIDERED DESIGN OF 
JRNL        TITL 2 A LEAD JANUS KINASE (JAK) INHIBITOR THAT UTILIZES A UNIQUE   
JRNL        TITL 3 AZETIDIN-3-AMINO BRIDGING SCAFFOLD TO ATTENUATE OFF-TARGET   
JRNL        TITL 4 KINASE ACTIVITY, WHILE DRIVING POTENCY AND AQUEOUS           
JRNL        TITL 5 SOLUBILITY.                                                  
JRNL        REF    J.MED.CHEM.                   V.  66  8929 2023              
JRNL        REFN                   ISSN 0022-2623                               
JRNL        PMID   37314941                                                     
JRNL        DOI    10.1021/ACS.JMEDCHEM.3C00519                                 
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.45 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5                                             
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.45                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 61.17                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 23310                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.228                           
REMARK   3   R VALUE            (WORKING SET) : 0.225                           
REMARK   3   FREE R VALUE                     : 0.281                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.900                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1193                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.45                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.51                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1667                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.83                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2810                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 102                          
REMARK   3   BIN FREE R VALUE                    : 0.3050                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4607                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 60                                      
REMARK   3   SOLVENT ATOMS            : 209                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 38.21                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.21000                                             
REMARK   3    B22 (A**2) : -2.29000                                             
REMARK   3    B33 (A**2) : 2.27000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 1.44000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.638         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.320         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.266         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 11.732        
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.916                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.879                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  4777 ; 0.007 ; 0.013       
REMARK   3   BOND LENGTHS OTHERS               (A):  4522 ; 0.001 ; 0.015       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  6438 ; 1.284 ; 1.656       
REMARK   3   BOND ANGLES OTHERS          (DEGREES): 10420 ; 1.312 ; 1.585       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   555 ; 5.275 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   270 ;29.678 ;22.444       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   869 ;13.897 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    33 ;10.835 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   590 ; 0.064 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  5303 ; 0.005 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  1115 ; 0.001 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  2238 ; 3.247 ; 3.838       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  2237 ; 3.242 ; 3.836       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  2784 ; 5.009 ; 5.733       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  2785 ; 5.008 ; 5.735       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  2539 ; 3.643 ; 4.264       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  2540 ; 3.643 ; 4.265       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  3654 ; 5.705 ; 6.231       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2): 20350 ;10.065 ;72.437       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2): 20275 ;10.068 ;72.489       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NCS TYPE: LOCAL                                                    
REMARK   3   NUMBER OF DIFFERENT NCS PAIRS  : 1                                 
REMARK   3  GROUP  CHAIN1    RANGE     CHAIN2     RANGE    COUNT RMS  WEIGHT    
REMARK   3    1     A                    B                 9357  0.10  0.05     
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 8G6Z COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 17-FEB-23.                  
REMARK 100 THE DEPOSITION ID IS D_1000271824.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 08-APR-22                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : DIAMOND                            
REMARK 200  BEAMLINE                       : I03                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9763                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : PIXEL                              
REMARK 200  DETECTOR MANUFACTURER          : DECTRIS EIGER2 XE 16M              
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XIA2                               
REMARK 200  DATA SCALING SOFTWARE          : XDS                                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 24503                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.450                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 61.170                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY                : 6.800                              
REMARK 200  R MERGE                    (I) : 0.14800                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 10.1000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.45                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.55                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.71300                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.800                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: 3IOK                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 43.87                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.19                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 3350, AMMONIUM ACETATE, HEPES,       
REMARK 280  VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y,-Z                                                 
REMARK 290       3555   X+1/2,Y+1/2,Z                                           
REMARK 290       4555   -X+1/2,Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   3  1.000000  0.000000  0.000000       49.04500            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       18.23000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       49.04500            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       18.23000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A   815                                                      
REMARK 465     HIS A   816                                                      
REMARK 465     HIS A   817                                                      
REMARK 465     HIS A   818                                                      
REMARK 465     HIS A   819                                                      
REMARK 465     HIS A   820                                                      
REMARK 465     HIS A   821                                                      
REMARK 465     THR A   822                                                      
REMARK 465     SER A   823                                                      
REMARK 465     LEU A   824                                                      
REMARK 465     TYR A   825                                                      
REMARK 465     LYS A   826                                                      
REMARK 465     LYS A   827                                                      
REMARK 465     ALA A   828                                                      
REMARK 465     GLY A   829                                                      
REMARK 465     PHE A   830                                                      
REMARK 465     LEU A   831                                                      
REMARK 465     VAL A   832                                                      
REMARK 465     PRO A   833                                                      
REMARK 465     ARG A   834                                                      
REMARK 465     GLY A   835                                                      
REMARK 465     SER A   836                                                      
REMARK 465     GLU A   837                                                      
REMARK 465     ASP A   838                                                      
REMARK 465     ARG A   839                                                      
REMARK 465     ASP A   840                                                      
REMARK 465     PRO A   841                                                      
REMARK 465     THR A   842                                                      
REMARK 465     SER A   919                                                      
REMARK 465     ALA A   920                                                      
REMARK 465     GLY A   921                                                      
REMARK 465     ARG A   922                                                      
REMARK 465     LYS A  1011                                                      
REMARK 465     GLU A  1012                                                      
REMARK 465     ASP A  1068                                                      
REMARK 465     LYS A  1069                                                      
REMARK 465     GLY A  1132                                                      
REMARK 465     MET B   815                                                      
REMARK 465     HIS B   816                                                      
REMARK 465     HIS B   817                                                      
REMARK 465     HIS B   818                                                      
REMARK 465     HIS B   819                                                      
REMARK 465     HIS B   820                                                      
REMARK 465     HIS B   821                                                      
REMARK 465     THR B   822                                                      
REMARK 465     SER B   823                                                      
REMARK 465     LEU B   824                                                      
REMARK 465     TYR B   825                                                      
REMARK 465     LYS B   826                                                      
REMARK 465     LYS B   827                                                      
REMARK 465     ALA B   828                                                      
REMARK 465     GLY B   829                                                      
REMARK 465     PHE B   830                                                      
REMARK 465     LEU B   831                                                      
REMARK 465     VAL B   832                                                      
REMARK 465     PRO B   833                                                      
REMARK 465     ARG B   834                                                      
REMARK 465     GLY B   835                                                      
REMARK 465     SER B   836                                                      
REMARK 465     GLU B   837                                                      
REMARK 465     ASP B   838                                                      
REMARK 465     ARG B   839                                                      
REMARK 465     ASP B   840                                                      
REMARK 465     PRO B   841                                                      
REMARK 465     THR B   842                                                      
REMARK 465     SER B   919                                                      
REMARK 465     ALA B   920                                                      
REMARK 465     GLY B   921                                                      
REMARK 465     ARG B   922                                                      
REMARK 465     LYS B  1011                                                      
REMARK 465     GLU B  1012                                                      
REMARK 465     ASN B  1067                                                      
REMARK 465     ASP B  1068                                                      
REMARK 465     LYS B  1069                                                      
REMARK 465     GLY B  1132                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     ARG A 923    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     ARG A 947    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     GLN A1003    CG   CD   OE1  NE2                                  
REMARK 470     LYS A1053    CG   CD   CE   NZ                                   
REMARK 470     ASN A1067    CG   OD1  ND2                                       
REMARK 470     ARG B 923    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     ARG B 947    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     GLN B1003    CG   CD   OE1  NE2                                  
REMARK 470     LYS B1053    CG   CD   CE   NZ                                   
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   NH1  ARG B   867     O    HOH B  1301              2.00            
REMARK 500   O    GLY A  1071     O    HOH A  1301              2.04            
REMARK 500   O    GLY B   993     O    HOH B  1302              2.04            
REMARK 500   OE1  GLN B  1125     O    HOH B  1303              2.13            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   NH2  ARG A   867     OE1  GLN A  1072     3455     1.74            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    LEU A 852      -56.20   -121.61                                   
REMARK 500    ASP A 869       78.68   -119.05                                   
REMARK 500    GLN A 872       71.05     47.85                                   
REMARK 500    ASP A 976       36.76   -148.83                                   
REMARK 500    TRP A1106       38.00    -95.93                                   
REMARK 500    LEU B 852      -51.28   -123.85                                   
REMARK 500    ASP B 869       76.28   -116.27                                   
REMARK 500    GLN B 885      -81.47   -106.39                                   
REMARK 500    ARG B 975       -3.13     79.03                                   
REMARK 500    ASP B 976       35.47   -142.31                                   
REMARK 500    TRP B1106       34.63    -96.48                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  8G6Z A  837  1132  UNP    O60674   JAK2_HUMAN     837   1132             
DBREF  8G6Z B  837  1132  UNP    O60674   JAK2_HUMAN     837   1132             
SEQADV 8G6Z MET A  815  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z HIS A  816  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z HIS A  817  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z HIS A  818  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z HIS A  819  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z HIS A  820  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z HIS A  821  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z THR A  822  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z SER A  823  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z LEU A  824  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z TYR A  825  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z LYS A  826  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z LYS A  827  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z ALA A  828  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z GLY A  829  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z PHE A  830  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z LEU A  831  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z VAL A  832  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z PRO A  833  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z ARG A  834  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z GLY A  835  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z SER A  836  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z SER A 1073  UNP  O60674    MET  1073 ENGINEERED MUTATION            
SEQADV 8G6Z THR A 1076  UNP  O60674    PHE  1076 ENGINEERED MUTATION            
SEQADV 8G6Z GLN A 1129  UNP  O60674    ASN  1129 CONFLICT                       
SEQADV 8G6Z MET B  815  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z HIS B  816  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z HIS B  817  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z HIS B  818  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z HIS B  819  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z HIS B  820  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z HIS B  821  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z THR B  822  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z SER B  823  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z LEU B  824  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z TYR B  825  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z LYS B  826  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z LYS B  827  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z ALA B  828  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z GLY B  829  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z PHE B  830  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z LEU B  831  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z VAL B  832  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z PRO B  833  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z ARG B  834  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z GLY B  835  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z SER B  836  UNP  O60674              EXPRESSION TAG                 
SEQADV 8G6Z SER B 1073  UNP  O60674    MET  1073 ENGINEERED MUTATION            
SEQADV 8G6Z THR B 1076  UNP  O60674    PHE  1076 ENGINEERED MUTATION            
SEQADV 8G6Z GLN B 1129  UNP  O60674    ASN  1129 CONFLICT                       
SEQRES   1 A  318  MET HIS HIS HIS HIS HIS HIS THR SER LEU TYR LYS LYS          
SEQRES   2 A  318  ALA GLY PHE LEU VAL PRO ARG GLY SER GLU ASP ARG ASP          
SEQRES   3 A  318  PRO THR GLN PHE GLU GLU ARG HIS LEU LYS PHE LEU GLN          
SEQRES   4 A  318  GLN LEU GLY LYS GLY ASN PHE GLY SER VAL GLU MET CYS          
SEQRES   5 A  318  ARG TYR ASP PRO LEU GLN ASP ASN THR GLY GLU VAL VAL          
SEQRES   6 A  318  ALA VAL LYS LYS LEU GLN HIS SER THR GLU GLU HIS LEU          
SEQRES   7 A  318  ARG ASP PHE GLU ARG GLU ILE GLU ILE LEU LYS SER LEU          
SEQRES   8 A  318  GLN HIS ASP ASN ILE VAL LYS TYR LYS GLY VAL CYS TYR          
SEQRES   9 A  318  SER ALA GLY ARG ARG ASN LEU LYS LEU ILE MET GLU TYR          
SEQRES  10 A  318  LEU PRO TYR GLY SER LEU ARG ASP TYR LEU GLN LYS HIS          
SEQRES  11 A  318  LYS GLU ARG ILE ASP HIS ILE LYS LEU LEU GLN TYR THR          
SEQRES  12 A  318  SER GLN ILE CYS LYS GLY MET GLU TYR LEU GLY THR LYS          
SEQRES  13 A  318  ARG TYR ILE HIS ARG ASP LEU ALA THR ARG ASN ILE LEU          
SEQRES  14 A  318  VAL GLU ASN GLU ASN ARG VAL LYS ILE GLY ASP PHE GLY          
SEQRES  15 A  318  LEU THR LYS VAL LEU PRO GLN ASP LYS GLU PTR TYR LYS          
SEQRES  16 A  318  VAL LYS GLU PRO GLY GLU SER PRO ILE PHE TRP TYR ALA          
SEQRES  17 A  318  PRO GLU SER LEU THR GLU SER LYS PHE SER VAL ALA SER          
SEQRES  18 A  318  ASP VAL TRP SER PHE GLY VAL VAL LEU TYR GLU LEU PHE          
SEQRES  19 A  318  THR TYR ILE GLU LYS SER LYS SER PRO PRO ALA GLU PHE          
SEQRES  20 A  318  MET ARG MET ILE GLY ASN ASP LYS GLN GLY GLN SER ILE          
SEQRES  21 A  318  VAL THR HIS LEU ILE GLU LEU LEU LYS ASN ASN GLY ARG          
SEQRES  22 A  318  LEU PRO ARG PRO ASP GLY CYS PRO ASP GLU ILE TYR MET          
SEQRES  23 A  318  ILE MET THR GLU CYS TRP ASN ASN ASN VAL ASN GLN ARG          
SEQRES  24 A  318  PRO SER PHE ARG ASP LEU ALA LEU ARG VAL ASP GLN ILE          
SEQRES  25 A  318  ARG ASP GLN MET ALA GLY                                      
SEQRES   1 B  318  MET HIS HIS HIS HIS HIS HIS THR SER LEU TYR LYS LYS          
SEQRES   2 B  318  ALA GLY PHE LEU VAL PRO ARG GLY SER GLU ASP ARG ASP          
SEQRES   3 B  318  PRO THR GLN PHE GLU GLU ARG HIS LEU LYS PHE LEU GLN          
SEQRES   4 B  318  GLN LEU GLY LYS GLY ASN PHE GLY SER VAL GLU MET CYS          
SEQRES   5 B  318  ARG TYR ASP PRO LEU GLN ASP ASN THR GLY GLU VAL VAL          
SEQRES   6 B  318  ALA VAL LYS LYS LEU GLN HIS SER THR GLU GLU HIS LEU          
SEQRES   7 B  318  ARG ASP PHE GLU ARG GLU ILE GLU ILE LEU LYS SER LEU          
SEQRES   8 B  318  GLN HIS ASP ASN ILE VAL LYS TYR LYS GLY VAL CYS TYR          
SEQRES   9 B  318  SER ALA GLY ARG ARG ASN LEU LYS LEU ILE MET GLU TYR          
SEQRES  10 B  318  LEU PRO TYR GLY SER LEU ARG ASP TYR LEU GLN LYS HIS          
SEQRES  11 B  318  LYS GLU ARG ILE ASP HIS ILE LYS LEU LEU GLN TYR THR          
SEQRES  12 B  318  SER GLN ILE CYS LYS GLY MET GLU TYR LEU GLY THR LYS          
SEQRES  13 B  318  ARG TYR ILE HIS ARG ASP LEU ALA THR ARG ASN ILE LEU          
SEQRES  14 B  318  VAL GLU ASN GLU ASN ARG VAL LYS ILE GLY ASP PHE GLY          
SEQRES  15 B  318  LEU THR LYS VAL LEU PRO GLN ASP LYS GLU PTR TYR LYS          
SEQRES  16 B  318  VAL LYS GLU PRO GLY GLU SER PRO ILE PHE TRP TYR ALA          
SEQRES  17 B  318  PRO GLU SER LEU THR GLU SER LYS PHE SER VAL ALA SER          
SEQRES  18 B  318  ASP VAL TRP SER PHE GLY VAL VAL LEU TYR GLU LEU PHE          
SEQRES  19 B  318  THR TYR ILE GLU LYS SER LYS SER PRO PRO ALA GLU PHE          
SEQRES  20 B  318  MET ARG MET ILE GLY ASN ASP LYS GLN GLY GLN SER ILE          
SEQRES  21 B  318  VAL THR HIS LEU ILE GLU LEU LEU LYS ASN ASN GLY ARG          
SEQRES  22 B  318  LEU PRO ARG PRO ASP GLY CYS PRO ASP GLU ILE TYR MET          
SEQRES  23 B  318  ILE MET THR GLU CYS TRP ASN ASN ASN VAL ASN GLN ARG          
SEQRES  24 B  318  PRO SER PHE ARG ASP LEU ALA LEU ARG VAL ASP GLN ILE          
SEQRES  25 B  318  ARG ASP GLN MET ALA GLY                                      
MODRES 8G6Z PTR A 1007  TYR  MODIFIED RESIDUE                                   
MODRES 8G6Z PTR B 1007  TYR  MODIFIED RESIDUE                                   
HET    PTR  A1007      16                                                       
HET    PTR  B1007      16                                                       
HET    YSI  A1201      28                                                       
HET    YSI  B1201      28                                                       
HET    EDO  B1202       4                                                       
HETNAM     PTR O-PHOSPHOTYROSINE                                                
HETNAM     YSI (3R)-3-CYCLOPENTYL-3-[(4M)-4-{5-METHYL-2-[(1-METHYL-1H-          
HETNAM   2 YSI  PYRAZOL-4-YL)AMINO]PYRIMIDIN-4-YL}-1H-PYRAZOL-1-                
HETNAM   3 YSI  YL]PROPANENITRILE                                               
HETNAM     EDO 1,2-ETHANEDIOL                                                   
HETSYN     PTR PHOSPHONOTYROSINE                                                
HETSYN     EDO ETHYLENE GLYCOL                                                  
FORMUL   1  PTR    2(C9 H12 N O6 P)                                             
FORMUL   3  YSI    2(C20 H24 N8)                                                
FORMUL   5  EDO    C2 H6 O2                                                     
FORMUL   6  HOH   *209(H2 O)                                                    
HELIX    1 AA1 GLU A  845  ARG A  847  5                                   3    
HELIX    2 AA2 THR A  888  LEU A  905  1                                  18    
HELIX    3 AA3 LEU A  937  LYS A  945  1                                   9    
HELIX    4 AA4 GLU A  946  ILE A  948  5                                   3    
HELIX    5 AA5 ASP A  949  LYS A  970  1                                  22    
HELIX    6 AA6 ALA A  978  ARG A  980  5                                   3    
HELIX    7 AA7 PRO A 1017  TYR A 1021  5                                   5    
HELIX    8 AA8 ALA A 1022  SER A 1029  1                                   8    
HELIX    9 AA9 SER A 1032  THR A 1049  1                                  18    
HELIX   10 AB1 GLU A 1052  LYS A 1055  5                                   4    
HELIX   11 AB2 SER A 1056  GLY A 1066  1                                  11    
HELIX   12 AB3 SER A 1073  ASN A 1084  1                                  12    
HELIX   13 AB4 PRO A 1095  TRP A 1106  1                                  12    
HELIX   14 AB5 ASN A 1109  ARG A 1113  5                                   5    
HELIX   15 AB6 SER A 1115  ALA A 1131  1                                  17    
HELIX   16 AB7 GLU B  845  ARG B  847  5                                   3    
HELIX   17 AB8 THR B  888  SER B  904  1                                  17    
HELIX   18 AB9 LEU B  937  LYS B  945  1                                   9    
HELIX   19 AC1 GLU B  946  ILE B  948  5                                   3    
HELIX   20 AC2 ASP B  949  LYS B  970  1                                  22    
HELIX   21 AC3 ALA B  978  ARG B  980  5                                   3    
HELIX   22 AC4 PRO B 1017  TYR B 1021  5                                   5    
HELIX   23 AC5 ALA B 1022  SER B 1029  1                                   8    
HELIX   24 AC6 SER B 1032  THR B 1049  1                                  18    
HELIX   25 AC7 GLU B 1052  LYS B 1055  5                                   4    
HELIX   26 AC8 SER B 1056  GLY B 1066  1                                  11    
HELIX   27 AC9 SER B 1073  ASN B 1084  1                                  12    
HELIX   28 AD1 PRO B 1095  TRP B 1106  1                                  12    
HELIX   29 AD2 ASN B 1109  ARG B 1113  5                                   5    
HELIX   30 AD3 SER B 1115  ALA B 1131  1                                  17    
SHEET    1 AA1 5 LEU A 849  GLY A 858  0                                        
SHEET    2 AA1 5 GLY A 861  TYR A 868 -1  O  VAL A 863   N  GLY A 856           
SHEET    3 AA1 5 GLU A 877  LEU A 884 -1  O  VAL A 879   N  CYS A 866           
SHEET    4 AA1 5 LYS A 926  GLU A 930 -1  O  MET A 929   N  ALA A 880           
SHEET    5 AA1 5 TYR A 913  CYS A 917 -1  N  LYS A 914   O  ILE A 928           
SHEET    1 AA2 3 GLY A 935  SER A 936  0                                        
SHEET    2 AA2 3 ILE A 982  ASN A 986 -1  O  VAL A 984   N  GLY A 935           
SHEET    3 AA2 3 ARG A 989  ILE A 992 -1  O  LYS A 991   N  LEU A 983           
SHEET    1 AA3 2 TYR A 972  ILE A 973  0                                        
SHEET    2 AA3 2 LYS A 999  VAL A1000 -1  O  LYS A 999   N  ILE A 973           
SHEET    1 AA4 2 TYR A1008  LYS A1009  0                                        
SHEET    2 AA4 2 LYS A1030  PHE A1031 -1  O  PHE A1031   N  TYR A1008           
SHEET    1 AA5 5 LEU B 849  GLY B 858  0                                        
SHEET    2 AA5 5 GLY B 861  TYR B 868 -1  O  VAL B 863   N  GLY B 856           
SHEET    3 AA5 5 GLU B 877  LEU B 884 -1  O  VAL B 879   N  CYS B 866           
SHEET    4 AA5 5 LYS B 926  GLU B 930 -1  O  MET B 929   N  ALA B 880           
SHEET    5 AA5 5 TYR B 913  CYS B 917 -1  N  CYS B 917   O  LYS B 926           
SHEET    1 AA6 3 GLY B 935  SER B 936  0                                        
SHEET    2 AA6 3 ILE B 982  ASN B 986 -1  O  VAL B 984   N  GLY B 935           
SHEET    3 AA6 3 ARG B 989  ILE B 992 -1  O  LYS B 991   N  LEU B 983           
SHEET    1 AA7 2 TYR B 972  ILE B 973  0                                        
SHEET    2 AA7 2 LYS B 999  VAL B1000 -1  O  LYS B 999   N  ILE B 973           
SHEET    1 AA8 2 TYR B1008  LYS B1009  0                                        
SHEET    2 AA8 2 LYS B1030  PHE B1031 -1  O  PHE B1031   N  TYR B1008           
LINK         C   GLU A1006                 N   PTR A1007     1555   1555  1.34  
LINK         C   PTR A1007                 N   TYR A1008     1555   1555  1.34  
LINK         C   GLU B1006                 N   PTR B1007     1555   1555  1.34  
LINK         C   PTR B1007                 N   TYR B1008     1555   1555  1.34  
CRYST1   98.090   36.460  183.730  90.00  94.02  90.00 C 1 2 1       8          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.010195  0.000000  0.000716        0.00000                         
SCALE2      0.000000  0.027427  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.005456        0.00000