HEADER    SIGNALING PROTEIN                       16-SEP-13   4MQS              
TITLE     STRUCTURE OF ACTIVE HUMAN M2 MUSCARINIC ACETYLCHOLINE RECEPTOR BOUND  
TITLE    2 TO THE AGONIST IPEROXO                                               
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: MUSCARINIC ACETYLCHOLINE RECEPTOR M2;                      
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: UNP RESIDUES 1-232, 373-466;                               
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: YES;                                                       
COMPND   7 MOL_ID: 2;                                                           
COMPND   8 MOLECULE: NANOBODY 9-8;                                              
COMPND   9 CHAIN: B;                                                            
COMPND  10 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: CHRM2;                                                         
SOURCE   6 EXPRESSION_SYSTEM: SPODOPTERA FRUGIPERDA;                            
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 7108;                                       
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PVL1392;                                  
SOURCE  10 MOL_ID: 2;                                                           
SOURCE  11 ORGANISM_SCIENTIFIC: LAMA GLAMA;                                     
SOURCE  12 ORGANISM_TAXID: 9844;                                                
SOURCE  13 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  14 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE  15 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE  16 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  17 EXPRESSION_SYSTEM_PLASMID: PMAL3CBN                                  
KEYWDS    G PROTEIN-COUPLED RECEPTOR, MUSCARINIC ACETYLCHOLINE RECEPTOR,        
KEYWDS   2 SIGNALING PROTEIN                                                    
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    A.C.KRUSE,A.M.RING,A.MANGLIK,J.HU,K.HU,K.EITEL,H.HUEBNER,E.PARDON,    
AUTHOR   2 C.VALANT,P.M.SEXTON,A.CHRISTOPOULOS,C.C.FELDER,P.GMEINER,J.STEYAERT, 
AUTHOR   3 W.I.WEIS,K.C.GARCIA,J.WESS,B.K.KOBILKA                               
REVDAT   6   09-OCT-24 4MQS    1       REMARK                                   
REVDAT   5   20-SEP-23 4MQS    1       REMARK SEQADV                            
REVDAT   4   05-JUL-17 4MQS    1       SOURCE                                   
REVDAT   3   18-DEC-13 4MQS    1       JRNL                                     
REVDAT   2   04-DEC-13 4MQS    1       JRNL                                     
REVDAT   1   27-NOV-13 4MQS    0                                                
JRNL        AUTH   A.C.KRUSE,A.M.RING,A.MANGLIK,J.HU,K.HU,K.EITEL,H.HUBNER,     
JRNL        AUTH 2 E.PARDON,C.VALANT,P.M.SEXTON,A.CHRISTOPOULOS,C.C.FELDER,     
JRNL        AUTH 3 P.GMEINER,J.STEYAERT,W.I.WEIS,K.C.GARCIA,J.WESS,B.K.KOBILKA  
JRNL        TITL   ACTIVATION AND ALLOSTERIC MODULATION OF A MUSCARINIC         
JRNL        TITL 2 ACETYLCHOLINE RECEPTOR.                                      
JRNL        REF    NATURE                        V. 504   101 2013              
JRNL        REFN                   ISSN 0028-0836                               
JRNL        PMID   24256733                                                     
JRNL        DOI    10.1038/NATURE12735                                          
REMARK   2                                                                      
REMARK   2 RESOLUTION.    3.50 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX (PHENIX.REFINE: DEV_1241)                     
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ML                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 3.50                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 32.52                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.380                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 96.1                           
REMARK   3   NUMBER OF REFLECTIONS             : 10237                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.254                           
REMARK   3   R VALUE            (WORKING SET) : 0.249                           
REMARK   3   FREE R VALUE                     : 0.298                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.060                          
REMARK   3   FREE R VALUE TEST SET COUNT      : 1030                            
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 32.5232 -  6.6787    0.97     1422   159  0.2208 0.2430        
REMARK   3     2  6.6787 -  5.3086    0.98     1365   148  0.2721 0.2932        
REMARK   3     3  5.3086 -  4.6397    0.98     1346   151  0.2210 0.2807        
REMARK   3     4  4.6397 -  4.2165    0.98     1327   148  0.2296 0.3334        
REMARK   3     5  4.2165 -  3.9148    0.99     1318   149  0.2707 0.3416        
REMARK   3     6  3.9148 -  3.6843    0.96     1300   146  0.2964 0.3606        
REMARK   3     7  3.6843 -  3.5000    0.86     1129   129  0.3442 0.3975        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.570            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 35.280           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :  0.004           3125                                  
REMARK   3   ANGLE     :  0.861           4290                                  
REMARK   3   CHIRALITY :  0.061            508                                  
REMARK   3   PLANARITY :  0.004            526                                  
REMARK   3   DIHEDRAL  : 14.153           1026                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 4MQS COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 20-SEP-13.                  
REMARK 100 THE DEPOSITION ID IS D_1000082249.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 23-FEB-13                          
REMARK 200  TEMPERATURE           (KELVIN) : 77                                 
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 23-ID-D                            
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.033                              
REMARK 200  MONOCHROMATOR                  : DOUBLE CRYSTAL CRYO-COOLED         
REMARK 200                                   SI(111)                            
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARMOSAIC 300 MM CCD               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 10386                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 3.500                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 33.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 95.9                               
REMARK 200  DATA REDUNDANCY                : 4.800                              
REMARK 200  R MERGE                    (I) : 0.18800                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.50                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 3.60                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 83.1                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.50                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.74400                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
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: PDB ENTRY 3UON                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 67.31                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.76                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: RECONSTITUTED IN 10:1                    
REMARK 280  MONOOLEIN:CHOLESTEROL MIX. PRECIPITANT SOLUTION: 10 - 20% PEG300,   
REMARK 280  100 MM HEPES, PH 7.2 - 7.9, 1.2% 1,2,3-HEPTANETRIOL, AND 20 -       
REMARK 280  80 MM EDTA, PH 8.0, LIPIDIC CUBIC PHASE, TEMPERATURE 293K           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
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       31.44800            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       81.74100            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       39.06500            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       81.74100            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       31.44800            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       39.06500            
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 1620 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 18500 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -15.0 KCAL/MOL                        
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     ASP A   -16                                                      
REMARK 465     TYR A   -15                                                      
REMARK 465     LYS A   -14                                                      
REMARK 465     ASP A   -13                                                      
REMARK 465     ASP A   -12                                                      
REMARK 465     ASP A   -11                                                      
REMARK 465     GLU A   -10                                                      
REMARK 465     ASN A    -9                                                      
REMARK 465     LEU A    -8                                                      
REMARK 465     TYR A    -7                                                      
REMARK 465     PHE A    -6                                                      
REMARK 465     GLN A    -5                                                      
REMARK 465     GLY A    -4                                                      
REMARK 465     LEU A    -3                                                      
REMARK 465     GLU A    -2                                                      
REMARK 465     MET A    -1                                                      
REMARK 465     ASP A     0                                                      
REMARK 465     ASP A     1                                                      
REMARK 465     SER A     2                                                      
REMARK 465     THR A     3                                                      
REMARK 465     ASP A     4                                                      
REMARK 465     SER A     5                                                      
REMARK 465     SER A     6                                                      
REMARK 465     ASP A     7                                                      
REMARK 465     ASN A     8                                                      
REMARK 465     SER A     9                                                      
REMARK 465     LEU A    10                                                      
REMARK 465     ALA A    11                                                      
REMARK 465     LEU A    12                                                      
REMARK 465     THR A    13                                                      
REMARK 465     SER A    14                                                      
REMARK 465     PRO A    15                                                      
REMARK 465     TYR A    16                                                      
REMARK 465     LEU A    17                                                      
REMARK 465     GLU A    18                                                      
REMARK 465     ARG A   216                                                      
REMARK 465     ILE A   217                                                      
REMARK 465     LYS A   218                                                      
REMARK 465     LYS A   219                                                      
REMARK 465     ASP A   220                                                      
REMARK 465     LYS A   221                                                      
REMARK 465     LYS A   222                                                      
REMARK 465     GLU A   223                                                      
REMARK 465     PRO A   224                                                      
REMARK 465     VAL A   225                                                      
REMARK 465     ALA A   226                                                      
REMARK 465     ASN A   227                                                      
REMARK 465     GLN A   228                                                      
REMARK 465     ASP A   229                                                      
REMARK 465     PRO A   230                                                      
REMARK 465     VAL A   231                                                      
REMARK 465     SER A   232                                                      
REMARK 465     THR A   373                                                      
REMARK 465     ARG A   374                                                      
REMARK 465     LYS A   375                                                      
REMARK 465     LYS A   376                                                      
REMARK 465     CYS A   457                                                      
REMARK 465     HIS A   458                                                      
REMARK 465     TYR A   459                                                      
REMARK 465     LYS A   460                                                      
REMARK 465     ASN A   461                                                      
REMARK 465     ILE A   462                                                      
REMARK 465     GLY A   463                                                      
REMARK 465     ALA A   464                                                      
REMARK 465     THR A   465                                                      
REMARK 465     ARG A   466                                                      
REMARK 465     HIS A   467                                                      
REMARK 465     HIS A   468                                                      
REMARK 465     HIS A   469                                                      
REMARK 465     HIS A   470                                                      
REMARK 465     HIS A   471                                                      
REMARK 465     HIS A   472                                                      
REMARK 465     HIS A   473                                                      
REMARK 465     HIS A   474                                                      
REMARK 465     GLY B    -3                                                      
REMARK 465     PRO B    -2                                                      
REMARK 465     GLY B    -1                                                      
REMARK 465     SER B     0                                                      
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     LYS A  19    CG   CD   CE   NZ                                   
REMARK 470     ARG A  52    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     HIS A  53    CG   ND1  CD2  CE1  NE2                             
REMARK 470     LYS A 127    CG   CD   CE   NZ                                   
REMARK 470     LYS A 134    CG   CD   CE   NZ                                   
REMARK 470     LYS A 138    CG   CD   CE   NZ                                   
REMARK 470     ILE A 165    CG1  CG2  CD1                                       
REMARK 470     ASP A 173    CG   OD1  OD2                                       
REMARK 470     GLU A 175    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 214    CG   CD   CE   NZ                                   
REMARK 470     SER A 215    OG                                                  
REMARK 470     ARG A 381    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     LYS A 383    CG   CD   CE   NZ                                   
REMARK 470     LYS A 384    CG   CD   CE   NZ                                   
REMARK 470     ASN A 444    CG   OD1  ND2                                       
REMARK 470     LYS A 448    CG   CD   CE   NZ                                   
REMARK 470     LYS A 449    CG   CD   CE   NZ                                   
REMARK 470     LEU A 455    CG   CD1  CD2                                       
REMARK 470     MET A 456    CG   SD   CE                                        
REMARK 470     GLN B   1    CG   CD   OE1  NE2                                  
REMARK 470     GLN B   5    CG   CD   OE1  NE2                                  
REMARK 470     PHE B  29    CG   CD1  CD2  CE1  CE2  CZ                         
REMARK 470     ASP B  58    CG   OD1  OD2                                       
REMARK 470     ILE B  62    CG1  CG2  CD1                                       
REMARK 470     LYS B  68    CG   CD   CE   NZ                                   
REMARK 470     ASP B  76    CG   OD1  OD2                                       
REMARK 470     LYS B  90    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   O    ASP B    33     OG   SER B    57              2.18            
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    PHE A  75      -63.49    -97.14                                   
REMARK 500    PHE A 195      -64.48   -127.21                                   
REMARK 500    PRO A 437        2.26    -67.84                                   
REMARK 500    PHE B  29       -0.98     65.22                                   
REMARK 500    PRO B  44      107.87    -54.98                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 650                                                                      
REMARK 650 HELIX                                                                
REMARK 650 DETERMINATION METHOD: AUTHOR DETERMINED                              
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IXO A 501                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3UON   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF THE M2 MUSCARINIC RECEPTOR IN AN INACTIVE CONFORMATION  
REMARK 900 RELATED ID: 4MQT   RELATED DB: PDB                                   
DBREF  4MQS A   -1   232  UNP    P08172   ACM2_HUMAN       1    232             
DBREF  4MQS A  373   466  UNP    P08172   ACM2_HUMAN     373    466             
DBREF  4MQS B   -3   121  PDB    4MQS     4MQS            -3    121             
SEQADV 4MQS ASP A  -16  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS TYR A  -15  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS LYS A  -14  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS ASP A  -13  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS ASP A  -12  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS ASP A  -11  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS GLU A  -10  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS ASN A   -9  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS LEU A   -8  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS TYR A   -7  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS PHE A   -6  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS GLN A   -5  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS GLY A   -4  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS LEU A   -3  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS GLU A   -2  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS ASP A    0  UNP  P08172    ASN     2 ENGINEERED MUTATION            
SEQADV 4MQS ASP A    1  UNP  P08172    ASN     3 ENGINEERED MUTATION            
SEQADV 4MQS ASP A    4  UNP  P08172    ASN     6 ENGINEERED MUTATION            
SEQADV 4MQS ASP A    7  UNP  P08172    ASN     9 ENGINEERED MUTATION            
SEQADV 4MQS LEU A   17  UNP  P08172              INSERTION                      
SEQADV 4MQS GLU A   18  UNP  P08172              INSERTION                      
SEQADV 4MQS THR A  373  UNP  P08172    ALA   373 ENGINEERED MUTATION            
SEQADV 4MQS ARG A  374  UNP  P08172    LYS   374 ENGINEERED MUTATION            
SEQADV 4MQS HIS A  467  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS HIS A  468  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS HIS A  469  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS HIS A  470  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS HIS A  471  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS HIS A  472  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS HIS A  473  UNP  P08172              EXPRESSION TAG                 
SEQADV 4MQS HIS A  474  UNP  P08172              EXPRESSION TAG                 
SEQRES   1 A  351  ASP TYR LYS ASP ASP ASP GLU ASN LEU TYR PHE GLN GLY          
SEQRES   2 A  351  LEU GLU MET ASP ASP SER THR ASP SER SER ASP ASN SER          
SEQRES   3 A  351  LEU ALA LEU THR SER PRO TYR LEU GLU LYS THR PHE GLU          
SEQRES   4 A  351  VAL VAL PHE ILE VAL LEU VAL ALA GLY SER LEU SER LEU          
SEQRES   5 A  351  VAL THR ILE ILE GLY ASN ILE LEU VAL MET VAL SER ILE          
SEQRES   6 A  351  LYS VAL ASN ARG HIS LEU GLN THR VAL ASN ASN TYR PHE          
SEQRES   7 A  351  LEU PHE SER LEU ALA CYS ALA ASP LEU ILE ILE GLY VAL          
SEQRES   8 A  351  PHE SER MET ASN LEU TYR THR LEU TYR THR VAL ILE GLY          
SEQRES   9 A  351  TYR TRP PRO LEU GLY PRO VAL VAL CYS ASP LEU TRP LEU          
SEQRES  10 A  351  ALA LEU ASP TYR VAL VAL SER ASN ALA SER VAL MET ASN          
SEQRES  11 A  351  LEU LEU ILE ILE SER PHE ASP ARG TYR PHE CYS VAL THR          
SEQRES  12 A  351  LYS PRO LEU THR TYR PRO VAL LYS ARG THR THR LYS MET          
SEQRES  13 A  351  ALA GLY MET MET ILE ALA ALA ALA TRP VAL LEU SER PHE          
SEQRES  14 A  351  ILE LEU TRP ALA PRO ALA ILE LEU PHE TRP GLN PHE ILE          
SEQRES  15 A  351  VAL GLY VAL ARG THR VAL GLU ASP GLY GLU CYS TYR ILE          
SEQRES  16 A  351  GLN PHE PHE SER ASN ALA ALA VAL THR PHE GLY THR ALA          
SEQRES  17 A  351  ILE ALA ALA PHE TYR LEU PRO VAL ILE ILE MET THR VAL          
SEQRES  18 A  351  LEU TYR TRP HIS ILE SER ARG ALA SER LYS SER ARG ILE          
SEQRES  19 A  351  LYS LYS ASP LYS LYS GLU PRO VAL ALA ASN GLN ASP PRO          
SEQRES  20 A  351  VAL SER THR ARG LYS LYS PRO PRO PRO SER ARG GLU LYS          
SEQRES  21 A  351  LYS VAL THR ARG THR ILE LEU ALA ILE LEU LEU ALA PHE          
SEQRES  22 A  351  ILE ILE THR TRP ALA PRO TYR ASN VAL MET VAL LEU ILE          
SEQRES  23 A  351  ASN THR PHE CYS ALA PRO CYS ILE PRO ASN THR VAL TRP          
SEQRES  24 A  351  THR ILE GLY TYR TRP LEU CYS TYR ILE ASN SER THR ILE          
SEQRES  25 A  351  ASN PRO ALA CYS TYR ALA LEU CYS ASN ALA THR PHE LYS          
SEQRES  26 A  351  LYS THR PHE LYS HIS LEU LEU MET CYS HIS TYR LYS ASN          
SEQRES  27 A  351  ILE GLY ALA THR ARG HIS HIS HIS HIS HIS HIS HIS HIS          
SEQRES   1 B  125  GLY PRO GLY SER GLN VAL GLN LEU GLN GLU SER GLY GLY          
SEQRES   2 B  125  GLY LEU VAL GLN ALA GLY ASP SER LEU ARG LEU SER CYS          
SEQRES   3 B  125  ALA ALA SER GLY PHE ASP PHE ASP ASN PHE ASP ASP TYR          
SEQRES   4 B  125  ALA ILE GLY TRP PHE ARG GLN ALA PRO GLY GLN GLU ARG          
SEQRES   5 B  125  GLU GLY VAL SER CYS ILE ASP PRO SER ASP GLY SER THR          
SEQRES   6 B  125  ILE TYR ALA ASP SER ALA LYS GLY ARG PHE THR ILE SER          
SEQRES   7 B  125  SER ASP ASN ALA GLU ASN THR VAL TYR LEU GLN MET ASN          
SEQRES   8 B  125  SER LEU LYS PRO GLU ASP THR ALA VAL TYR VAL CYS SER          
SEQRES   9 B  125  ALA TRP THR LEU PHE HIS SER ASP GLU TYR TRP GLY GLN          
SEQRES  10 B  125  GLY THR GLN VAL THR VAL SER SER                              
HET    IXO  A 501      14                                                       
HETNAM     IXO 4-(4,5-DIHYDRO-1,2-OXAZOL-3-YLOXY)-N,N,N-TRIMETHYLBUT-           
HETNAM   2 IXO  2-YN-1-AMINIUM                                                  
HETSYN     IXO IPEROXO                                                          
FORMUL   3  IXO    C10 H17 N2 O2 1+                                             
HELIX    1   1 GLU A   22  VAL A   50  1                                  29    
HELIX    2   2 VAL A   57  ILE A   71  1                                  15    
HELIX    3   3 MET A   77  ILE A   86  1                                  10    
HELIX    4   4 PRO A   93  THR A  126  1                                  34    
HELIX    5   5 TYR A  131  LYS A  134  1                                   4    
HELIX    6   6 THR A  137  LEU A  160  1                                  24    
HELIX    7   7 TRP A  162  VAL A  166  1                                   5    
HELIX    8   8 ALA A  184  ALA A  191  1                                   8    
HELIX    9   9 LEU A  197  SER A  213  1                                  17    
HELIX   10  10 ARG A  381  ASN A  410  1                                  30    
HELIX   11  11 ASN A  419  TYR A  430  1                                  12    
HELIX   12  12 ASN A  432  ASN A  436  1                                   5    
HELIX   13  13 ALA A  445  LYS A  452  1                                   8    
HELIX   14  14 ASN B   31  TYR B   35  5                                   5    
HELIX   15  15 LYS B   90  THR B   94  5                                   5    
HELIX   16  16 LEU B  104  SER B  107  5                                   4    
SHEET    1   A 4 GLN B   3  GLU B   6  0                                        
SHEET    2   A 4 LEU B  18  SER B  25 -1  O  ALA B  23   N  GLN B   5           
SHEET    3   A 4 THR B  81  MET B  86 -1  O  LEU B  84   N  LEU B  20           
SHEET    4   A 4 PHE B  71  ASP B  76 -1  N  THR B  72   O  GLN B  85           
SHEET    1   B 6 LEU B  11  VAL B  12  0                                        
SHEET    2   B 6 THR B 115  VAL B 119  1  O  THR B 118   N  VAL B  12           
SHEET    3   B 6 ALA B  95  TRP B 102 -1  N  TYR B  97   O  THR B 115           
SHEET    4   B 6 ALA B  36  GLN B  42 -1  N  PHE B  40   O  VAL B  98           
SHEET    5   B 6 GLU B  49  ASP B  55 -1  O  ILE B  54   N  ILE B  37           
SHEET    6   B 6 SER B  60  TYR B  63 -1  O  ILE B  62   N  CYS B  53           
SHEET    1   C 4 LEU B  11  VAL B  12  0                                        
SHEET    2   C 4 THR B 115  VAL B 119  1  O  THR B 118   N  VAL B  12           
SHEET    3   C 4 ALA B  95  TRP B 102 -1  N  TYR B  97   O  THR B 115           
SHEET    4   C 4 GLU B 109  TRP B 111 -1  O  TYR B 110   N  ALA B 101           
SSBOND   1 CYS A   96    CYS A  176                          1555   1555  2.03  
SSBOND   2 CYS A  413    CYS A  416                          1555   1555  2.03  
SSBOND   3 CYS B   22    CYS B   99                          1555   1555  2.03  
SITE     1 AC1 12 ASP A 103  TYR A 104  SER A 107  VAL A 111                    
SITE     2 AC1 12 TRP A 155  ALA A 194  TRP A 400  TYR A 403                    
SITE     3 AC1 12 ASN A 404  TYR A 426  CYS A 429  TYR A 430                    
CRYST1   62.896   78.130  163.482  90.00  90.00  90.00 P 21 21 21    4          
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      0.015899  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.012799  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.006117        0.00000