HEADER TRANSFERASE 22-OCT-25 9T1Z TITLE JAK2-RUXOLITINIB COMPLEX WITH AN UNPHOSPHORYLATED ACTIVATION LOOP COMPND MOL_ID: 1; COMPND 2 MOLECULE: TYROSINE-PROTEIN KINASE JAK2; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: JANUS KINASE 2,JAK-2; COMPND 5 EC: 2.7.10.2; COMPND 6 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: JAK2; SOURCE 6 EXPRESSION_SYSTEM: TRICHOPLUSIA NI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 7111 KEYWDS JANUS KINASE, JAK2, JH1, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR Y.MIAO,T.HAIKARAINEN REVDAT 1 29-JUL-26 9T1Z 0 JRNL AUTH Y.MIAO,V.V.MYKULIAK,S.R.HUBBARD,O.SILVENNOINEN,V.HYTONEN, JRNL AUTH 2 T.HAIKARAINEN JRNL TITL JANUS KINASE 2 ACTIVATION LOOP AS A REGULATOR OF CATALYSIS JRNL TITL 2 AND TRANS-ACTIVATION. JRNL REF INT.J.BIOL.MACROMOL. V. 374 53276 2026 JRNL REFN ISSN 0141-8130 JRNL PMID 42409141 JRNL DOI 10.1016/J.IJBIOMAC.2026.153276 REMARK 2 REMARK 2 RESOLUTION. 2.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.21.1_5286 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 : GEOSTD + MONOMER LIBRARY + CDL V1.2 REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 49.27 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.1 REMARK 3 NUMBER OF REFLECTIONS : 18297 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.223 REMARK 3 R VALUE (WORKING SET) : 0.221 REMARK 3 FREE R VALUE : 0.272 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.720 REMARK 3 FREE R VALUE TEST SET COUNT : 863 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 49.2700 - 4.0000 0.99 2950 149 0.1939 0.2363 REMARK 3 2 4.0000 - 3.1700 0.99 2920 128 0.1946 0.2353 REMARK 3 3 3.1700 - 2.7700 1.00 2909 133 0.2160 0.2831 REMARK 3 4 2.7700 - 2.5200 1.00 2918 158 0.2447 0.2900 REMARK 3 5 2.5200 - 2.3400 1.00 2903 157 0.2668 0.3459 REMARK 3 6 2.3400 - 2.2000 0.97 2834 138 0.2978 0.3356 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.10 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) : 0.318 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 27.837 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 23.91 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 36.91 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 2456 REMARK 3 ANGLE : 0.637 3311 REMARK 3 CHIRALITY : 0.044 347 REMARK 3 PLANARITY : 0.009 429 REMARK 3 DIHEDRAL : 15.872 951 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 9T1Z COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 22-OCT-25. REMARK 100 THE DEPOSITION ID IS D_1292151628. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 29-NOV-24 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.2 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) : 0.976250 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 : XDS REMARK 200 DATA SCALING SOFTWARE : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 18301 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.200 REMARK 200 RESOLUTION RANGE LOW (A) : 58.200 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.2 REMARK 200 DATA REDUNDANCY : 6.800 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 5.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.27 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.200 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 50.25 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.47 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M GLY-GLY PH 8.2, 1.6 M NA REMARK 280 -MALONATE, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 295K 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 53.25500 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 34.96850 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 53.25500 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 34.96850 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: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A 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 817 REMARK 465 HIS A 818 REMARK 465 HIS A 819 REMARK 465 HIS A 820 REMARK 465 HIS A 821 REMARK 465 HIS A 822 REMARK 465 HIS A 823 REMARK 465 SER A 824 REMARK 465 SER A 825 REMARK 465 GLY A 826 REMARK 465 VAL A 827 REMARK 465 ASP A 828 REMARK 465 LEU A 829 REMARK 465 GLY A 830 REMARK 465 THR A 831 REMARK 465 GLU A 832 REMARK 465 ASN A 833 REMARK 465 LEU A 834 REMARK 465 TYR A 835 REMARK 465 PHE A 836 REMARK 465 GLN A 837 REMARK 465 SER A 838 REMARK 465 MET A 839 REMARK 465 ASP A 840 REMARK 465 PRO A 841 REMARK 465 THR A 842 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 857 CG CD CE NZ REMARK 470 ARG A 897 CG CD NE CZ NH1 NH2 REMARK 470 GLU A1012 CG CD OE1 OE2 REMARK 470 LYS A1053 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 HH22 ARG A 1087 OD1 ASN A 1108 1.55 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 OE2 GLU A 845 HZ1 LYS A 1009 4446 1.58 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 GLN A 872 12.75 57.45 REMARK 500 ASP A 976 36.77 -144.46 REMARK 500 GLU A1015 106.24 -55.49 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 ARG A1063 0.09 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 NA A1202 NA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A1351 O REMARK 620 2 HOH A1366 O 79.0 REMARK 620 N 1 DBREF 9T1Z A 840 1132 UNP O60674 JAK2_HUMAN 840 1132 SEQADV 9T1Z MET A 817 UNP O60674 INITIATING METHIONINE SEQADV 9T1Z HIS A 818 UNP O60674 EXPRESSION TAG SEQADV 9T1Z HIS A 819 UNP O60674 EXPRESSION TAG SEQADV 9T1Z HIS A 820 UNP O60674 EXPRESSION TAG SEQADV 9T1Z HIS A 821 UNP O60674 EXPRESSION TAG SEQADV 9T1Z HIS A 822 UNP O60674 EXPRESSION TAG SEQADV 9T1Z HIS A 823 UNP O60674 EXPRESSION TAG SEQADV 9T1Z SER A 824 UNP O60674 EXPRESSION TAG SEQADV 9T1Z SER A 825 UNP O60674 EXPRESSION TAG SEQADV 9T1Z GLY A 826 UNP O60674 EXPRESSION TAG SEQADV 9T1Z VAL A 827 UNP O60674 EXPRESSION TAG SEQADV 9T1Z ASP A 828 UNP O60674 EXPRESSION TAG SEQADV 9T1Z LEU A 829 UNP O60674 EXPRESSION TAG SEQADV 9T1Z GLY A 830 UNP O60674 EXPRESSION TAG SEQADV 9T1Z THR A 831 UNP O60674 EXPRESSION TAG SEQADV 9T1Z GLU A 832 UNP O60674 EXPRESSION TAG SEQADV 9T1Z ASN A 833 UNP O60674 EXPRESSION TAG SEQADV 9T1Z LEU A 834 UNP O60674 EXPRESSION TAG SEQADV 9T1Z TYR A 835 UNP O60674 EXPRESSION TAG SEQADV 9T1Z PHE A 836 UNP O60674 EXPRESSION TAG SEQADV 9T1Z GLN A 837 UNP O60674 EXPRESSION TAG SEQADV 9T1Z SER A 838 UNP O60674 EXPRESSION TAG SEQADV 9T1Z MET A 839 UNP O60674 EXPRESSION TAG SEQRES 1 A 316 MET HIS HIS HIS HIS HIS HIS SER SER GLY VAL ASP LEU SEQRES 2 A 316 GLY THR GLU ASN LEU TYR PHE GLN SER MET ASP PRO THR SEQRES 3 A 316 GLN PHE GLU GLU ARG HIS LEU LYS PHE LEU GLN GLN LEU SEQRES 4 A 316 GLY LYS GLY ASN PHE GLY SER VAL GLU MET CYS ARG TYR SEQRES 5 A 316 ASP PRO LEU GLN ASP ASN THR GLY GLU VAL VAL ALA VAL SEQRES 6 A 316 LYS LYS LEU GLN HIS SER THR GLU GLU HIS LEU ARG ASP SEQRES 7 A 316 PHE GLU ARG GLU ILE GLU ILE LEU LYS SER LEU GLN HIS SEQRES 8 A 316 ASP ASN ILE VAL LYS TYR LYS GLY VAL CYS TYR SER ALA SEQRES 9 A 316 GLY ARG ARG ASN LEU LYS LEU ILE MET GLU TYR LEU PRO SEQRES 10 A 316 TYR GLY SER LEU ARG ASP TYR LEU GLN LYS HIS LYS GLU SEQRES 11 A 316 ARG ILE ASP HIS ILE LYS LEU LEU GLN TYR THR SER GLN SEQRES 12 A 316 ILE CYS LYS GLY MET GLU TYR LEU GLY THR LYS ARG TYR SEQRES 13 A 316 ILE HIS ARG ASP LEU ALA THR ARG ASN ILE LEU VAL GLU SEQRES 14 A 316 ASN GLU ASN ARG VAL LYS ILE GLY ASP PHE GLY LEU THR SEQRES 15 A 316 LYS VAL LEU PRO GLN ASP LYS GLU TYR TYR LYS VAL LYS SEQRES 16 A 316 GLU PRO GLY GLU SER PRO ILE PHE TRP TYR ALA PRO GLU SEQRES 17 A 316 SER LEU THR GLU SER LYS PHE SER VAL ALA SER ASP VAL SEQRES 18 A 316 TRP SER PHE GLY VAL VAL LEU TYR GLU LEU PHE THR TYR SEQRES 19 A 316 ILE GLU LYS SER LYS SER PRO PRO ALA GLU PHE MET ARG SEQRES 20 A 316 MET ILE GLY ASN ASP LYS GLN GLY GLN MET ILE VAL PHE SEQRES 21 A 316 HIS LEU ILE GLU LEU LEU LYS ASN ASN GLY ARG LEU PRO SEQRES 22 A 316 ARG PRO ASP GLY CYS PRO ASP GLU ILE TYR MET ILE MET SEQRES 23 A 316 THR GLU CYS TRP ASN ASN ASN VAL ASN GLN ARG PRO SER SEQRES 24 A 316 PHE ARG ASP LEU ALA LEU ARG VAL ASP GLN ILE ARG ASP SEQRES 25 A 316 ASN MET ALA GLY HET RXT A1201 41 HET NA A1202 1 HETNAM RXT (3R)-3-CYCLOPENTYL-3-[4-(7H-PYRROLO[2,3-D]PYRIMIDIN-4- HETNAM 2 RXT YL)-1H-PYRAZOL-1-YL]PROPANENITRILE HETNAM NA SODIUM ION HETSYN RXT RUXOLITINIB FORMUL 2 RXT C17 H18 N6 FORMUL 3 NA NA 1+ FORMUL 4 HOH *82(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 TYR A 918 ARG A 923 1 6 HELIX 4 AA4 SER A 936 HIS A 944 1 9 HELIX 5 AA5 LYS A 945 ILE A 948 5 4 HELIX 6 AA6 ASP A 949 LYS A 970 1 22 HELIX 7 AA7 ALA A 978 ARG A 980 5 3 HELIX 8 AA8 PRO A 1017 TYR A 1021 5 5 HELIX 9 AA9 ALA A 1022 SER A 1029 1 8 HELIX 10 AB1 SER A 1032 THR A 1049 1 18 HELIX 11 AB2 GLU A 1052 LYS A 1055 5 4 HELIX 12 AB3 SER A 1056 GLY A 1066 1 11 HELIX 13 AB4 GLY A 1071 ASN A 1084 1 14 HELIX 14 AB5 PRO A 1095 TRP A 1106 1 12 HELIX 15 AB6 ASN A 1109 ARG A 1113 5 5 HELIX 16 AB7 SER A 1115 ASN A 1129 1 15 SHEET 1 AA1 5 LEU A 849 LYS A 857 0 SHEET 2 AA1 5 GLY A 861 TYR A 868 -1 O MET A 865 N GLN A 853 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 GLY A 915 O ILE A 928 SHEET 1 AA2 2 TYR A 972 ILE A 973 0 SHEET 2 AA2 2 LYS A 999 VAL A1000 -1 O LYS A 999 N ILE A 973 SHEET 1 AA3 2 ILE A 982 ASN A 986 0 SHEET 2 AA3 2 ARG A 989 ILE A 992 -1 O LYS A 991 N LEU A 983 SHEET 1 AA4 2 TYR A1008 LYS A1009 0 SHEET 2 AA4 2 LYS A1030 PHE A1031 -1 O PHE A1031 N TYR A1008 LINK NA NA A1202 O HOH A1351 1555 1555 2.18 LINK NA NA A1202 O HOH A1366 1555 1555 2.42 CRYST1 106.510 69.937 50.001 90.00 99.84 90.00 C 1 2 1 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 0.009389 0.000000 0.001629 0.00000 SCALE2 0.000000 0.014299 0.000000 0.00000 SCALE3 0.000000 0.000000 0.020298 0.00000 CONECT 4726 4727 4730 4749 4750 CONECT 4727 4726 4728 4751 4752 CONECT 4728 4727 4729 4753 4754 CONECT 4729 4728 4730 4755 4756 CONECT 4730 4726 4729 4731 4757 CONECT 4731 4730 4732 4735 4758 CONECT 4732 4731 4733 4759 4760 CONECT 4733 4732 4734 CONECT 4734 4733 CONECT 4735 4731 4736 4737 CONECT 4736 4735 4739 4761 CONECT 4737 4735 4738 CONECT 4738 4737 4739 4762 CONECT 4739 4736 4738 4740 CONECT 4740 4739 4741 4745 CONECT 4741 4740 4742 CONECT 4742 4741 4743 4763 CONECT 4743 4742 4744 CONECT 4744 4743 4745 4748 CONECT 4745 4740 4744 4746 CONECT 4746 4745 4747 4764 CONECT 4747 4746 4748 4765 CONECT 4748 4744 4747 4766 CONECT 4749 4726 CONECT 4750 4726 CONECT 4751 4727 CONECT 4752 4727 CONECT 4753 4728 CONECT 4754 4728 CONECT 4755 4729 CONECT 4756 4729 CONECT 4757 4730 CONECT 4758 4731 CONECT 4759 4732 CONECT 4760 4732 CONECT 4761 4736 CONECT 4762 4738 CONECT 4763 4742 CONECT 4764 4746 CONECT 4765 4747 CONECT 4766 4748 CONECT 4767 4818 4833 CONECT 4818 4767 CONECT 4833 4767 MASTER 311 0 2 16 11 0 0 6 2484 1 44 25 END