HEADER CELL CYCLE 05-AUG-19 6SGI TITLE NEK2 KINASE BOUND TO INHIBITOR 96 COMPND MOL_ID: 1; COMPND 2 MOLECULE: SERINE/THREONINE-PROTEIN KINASE NEK2; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: HSPK 21,NEVER IN MITOSIS A-RELATED KINASE 2,NIMA-RELATED COMPND 5 PROTEIN KINASE 2,NIMA-LIKE PROTEIN KINASE 1; COMPND 6 EC: 2.7.11.1; COMPND 7 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: NEK2, NEK2A, NLK1; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET30 KEYWDS KINASE INHIBITOR, CELL CYCLE EXPDTA X-RAY DIFFRACTION AUTHOR M.W.RICHARDS,C.P.MAS-DROUX,R.BAYLISS REVDAT 3 24-JAN-24 6SGI 1 REMARK REVDAT 2 03-FEB-21 6SGI 1 JRNL REVDAT 1 17-JUN-20 6SGI 0 JRNL AUTH C.J.MATHESON,C.R.COXON,R.BAYLISS,K.BOXALL,B.CARBAIN,A.M.FRY, JRNL AUTH 2 I.R.HARDCASTLE,S.J.HARNOR,C.MAS-DROUX,D.R.NEWELL, JRNL AUTH 3 M.W.RICHARDS,M.SIVAPRAKASAM,D.TURNER,R.J.GRIFFIN, JRNL AUTH 4 B.T.GOLDING,C.CANO JRNL TITL 2-ARYLAMINO-6-ETHYNYLPURINES ARE CYSTEINE-TARGETING JRNL TITL 2 IRREVERSIBLE INHIBITORS OF NEK2 KINASE. JRNL REF RSC MED CHEM V. 11 707 2020 JRNL REFN ESSN 2632-8682 JRNL PMID 33479670 JRNL DOI 10.1039/D0MD00074D REMARK 2 REMARK 2 RESOLUTION. 2.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.16_3549 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 : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 38.79 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.4 REMARK 3 NUMBER OF REFLECTIONS : 14349 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.216 REMARK 3 R VALUE (WORKING SET) : 0.213 REMARK 3 FREE R VALUE : 0.266 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.090 REMARK 3 FREE R VALUE TEST SET COUNT : 731 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 38.7900 - 3.9200 0.99 2771 157 0.1896 0.2467 REMARK 3 2 3.9200 - 3.1200 1.00 2731 150 0.1942 0.2317 REMARK 3 3 3.1200 - 2.7200 1.00 2721 143 0.2292 0.3220 REMARK 3 4 2.7200 - 2.4700 1.00 2735 130 0.2568 0.2998 REMARK 3 5 2.4700 - 2.3000 0.99 2660 151 0.2704 0.3077 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL 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) : 0.322 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 28.295 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 29.54 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 42.66 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 : 0.003 2090 REMARK 3 ANGLE : 0.592 2827 REMARK 3 CHIRALITY : 0.041 309 REMARK 3 PLANARITY : 0.004 358 REMARK 3 DIHEDRAL : 9.434 1713 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 6SGI COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 05-AUG-19. REMARK 100 THE DEPOSITION ID IS D_1292103694. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 20-FEB-09 REMARK 200 TEMPERATURE (KELVIN) : 80 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID23-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97950 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS3 S 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14376 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.300 REMARK 200 RESOLUTION RANGE LOW (A) : 38.790 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 200 DATA REDUNDANCY : 3.000 REMARK 200 R MERGE (I) : 0.18500 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 4.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.30 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.42 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 1.00200 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.100 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: 2W5A REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 54.91 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.73 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 50 MM TRIS PH 8.5, 3% PEG 8000, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 291K 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 49.69500 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 28.52000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 49.69500 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 28.52000 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 380 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 13720 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -23.0 KCAL/MOL 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 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 CL CL A 302 LIES ON A SPECIAL POSITION. 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 1 REMARK 465 PRO A 2 REMARK 465 ASP A 132 REMARK 465 GLY A 133 REMARK 465 GLY A 134 REMARK 465 HIS A 135 REMARK 465 THR A 136 REMARK 465 VAL A 137 REMARK 465 LEU A 138 REMARK 465 PHE A 160 REMARK 465 GLY A 161 REMARK 465 LEU A 162 REMARK 465 ALA A 163 REMARK 465 ARG A 164 REMARK 465 ILE A 165 REMARK 465 LEU A 166 REMARK 465 ASN A 167 REMARK 465 HIS A 168 REMARK 465 ASP A 169 REMARK 465 THR A 170 REMARK 465 SER A 171 REMARK 465 PHE A 172 REMARK 465 ALA A 173 REMARK 465 LYS A 174 REMARK 465 THR A 175 REMARK 465 MET A 191 REMARK 465 SER A 192 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 4 CG CD NE CZ NH1 NH2 REMARK 470 GLU A 6 CG CD OE1 OE2 REMARK 470 SER A 18 OG REMARK 470 GLU A 46 CG CD OE1 OE2 REMARK 470 LEU A 58 CG CD1 CD2 REMARK 470 ARG A 60 CG CD NE CZ NH1 NH2 REMARK 470 GLU A 61 CG CD OE1 OE2 REMARK 470 ARG A 73 CG CD NE CZ NH1 NH2 REMARK 470 ASN A 79 CG OD1 ND2 REMARK 470 LYS A 103 CG CD CE NZ REMARK 470 ARG A 130 CG CD NE CZ NH1 NH2 REMARK 470 HIS A 139 CG ND1 CD2 CE1 NE2 REMARK 470 ASP A 141 CG OD1 OD2 REMARK 470 ASP A 159 CG OD1 OD2 REMARK 470 PHE A 176 CG CD1 CD2 CE1 CE2 CZ REMARK 470 GLN A 187 CG CD OE1 NE2 REMARK 470 ARG A 190 CG CD NE CZ NH1 NH2 REMARK 470 GLN A 221 CG CD OE1 NE2 REMARK 470 LYS A 222 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 HOH A 416 O HOH A 508 1.85 REMARK 500 O HOH A 477 O HOH A 505 1.90 REMARK 500 O HOH A 527 O HOH A 533 2.00 REMARK 500 O HOH A 518 O HOH A 519 2.03 REMARK 500 OG SER A 184 O HOH A 401 2.10 REMARK 500 O HOH A 483 O HOH A 507 2.11 REMARK 500 OE2 GLU A 273 O HOH A 402 2.12 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 THR A 16 -165.70 -118.88 REMARK 500 SER A 18 -116.49 54.06 REMARK 500 THR A 80 46.04 34.31 REMARK 500 ARG A 130 33.02 -99.80 REMARK 500 ASN A 189 -80.03 -85.39 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 532 DISTANCE = 5.84 ANGSTROMS REMARK 525 HOH A 533 DISTANCE = 6.12 ANGSTROMS REMARK 525 HOH A 534 DISTANCE = 6.82 ANGSTROMS REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue LCB A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CL A 302 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CL A 304 DBREF 6SGI A 1 271 UNP P51955 NEK2_HUMAN 1 271 SEQADV 6SGI LEU A 272 UNP P51955 EXPRESSION TAG SEQADV 6SGI GLU A 273 UNP P51955 EXPRESSION TAG SEQADV 6SGI HIS A 274 UNP P51955 EXPRESSION TAG SEQADV 6SGI HIS A 275 UNP P51955 EXPRESSION TAG SEQADV 6SGI HIS A 276 UNP P51955 EXPRESSION TAG SEQADV 6SGI HIS A 277 UNP P51955 EXPRESSION TAG SEQADV 6SGI HIS A 278 UNP P51955 EXPRESSION TAG SEQADV 6SGI HIS A 279 UNP P51955 EXPRESSION TAG SEQRES 1 A 279 MET PRO SER ARG ALA GLU ASP TYR GLU VAL LEU TYR THR SEQRES 2 A 279 ILE GLY THR GLY SER TYR GLY ARG CYS GLN LYS ILE ARG SEQRES 3 A 279 ARG LYS SER ASP GLY LYS ILE LEU VAL TRP LYS GLU LEU SEQRES 4 A 279 ASP TYR GLY SER MET THR GLU ALA GLU LYS GLN MET LEU SEQRES 5 A 279 VAL SER GLU VAL ASN LEU LEU ARG GLU LEU LYS HIS PRO SEQRES 6 A 279 ASN ILE VAL ARG TYR TYR ASP ARG ILE ILE ASP ARG THR SEQRES 7 A 279 ASN THR THR LEU TYR ILE VAL MET GLU TYR CYS GLU GLY SEQRES 8 A 279 GLY ASP LEU ALA SER VAL ILE THR LYS GLY THR LYS GLU SEQRES 9 A 279 ARG GLN TYR LEU ASP GLU GLU PHE VAL LEU ARG VAL MET SEQRES 10 A 279 THR GLN LEU THR LEU ALA LEU LYS GLU CYS HIS ARG ARG SEQRES 11 A 279 SER ASP GLY GLY HIS THR VAL LEU HIS ARG ASP LEU LYS SEQRES 12 A 279 PRO ALA ASN VAL PHE LEU ASP GLY LYS GLN ASN VAL LYS SEQRES 13 A 279 LEU GLY ASP PHE GLY LEU ALA ARG ILE LEU ASN HIS ASP SEQRES 14 A 279 THR SER PHE ALA LYS THR PHE VAL GLY THR PRO TYR TYR SEQRES 15 A 279 MET SER PRO GLU GLN MET ASN ARG MET SER TYR ASN GLU SEQRES 16 A 279 LYS SER ASP ILE TRP SER LEU GLY CYS LEU LEU TYR GLU SEQRES 17 A 279 LEU CYS ALA LEU MET PRO PRO PHE THR ALA PHE SER GLN SEQRES 18 A 279 LYS GLU LEU ALA GLY LYS ILE ARG GLU GLY LYS PHE ARG SEQRES 19 A 279 ARG ILE PRO TYR ARG TYR SER ASP GLU LEU ASN GLU ILE SEQRES 20 A 279 ILE THR ARG MET LEU ASN LEU LYS ASP TYR HIS ARG PRO SEQRES 21 A 279 SER VAL GLU GLU ILE LEU GLU ASN PRO LEU ILE LEU GLU SEQRES 22 A 279 HIS HIS HIS HIS HIS HIS HET LCB A 301 22 HET CL A 302 1 HET CL A 303 1 HET CL A 304 1 HETNAM LCB 4-[(6-ETHYL-7~{H}-PURIN-2-YL)AMINO]BENZENESULFONAMIDE HETNAM CL CHLORIDE ION FORMUL 2 LCB C13 H14 N6 O2 S FORMUL 3 CL 3(CL 1-) FORMUL 6 HOH *134(H2 O) HELIX 1 AA1 ARG A 4 GLU A 6 5 3 HELIX 2 AA2 THR A 45 GLU A 61 1 17 HELIX 3 AA3 LEU A 94 ARG A 105 1 12 HELIX 4 AA4 ASP A 109 ARG A 130 1 22 HELIX 5 AA5 LYS A 143 ALA A 145 5 3 HELIX 6 AA6 ASN A 194 LEU A 212 1 19 HELIX 7 AA7 SER A 220 GLY A 231 1 12 HELIX 8 AA8 SER A 241 LEU A 252 1 12 HELIX 9 AA9 LYS A 255 ARG A 259 5 5 HELIX 10 AB1 SER A 261 GLU A 267 1 7 HELIX 11 AB2 LEU A 272 HIS A 276 5 5 SHEET 1 AA1 5 TYR A 8 GLY A 15 0 SHEET 2 AA1 5 ARG A 21 ARG A 27 -1 O CYS A 22 N GLY A 15 SHEET 3 AA1 5 ILE A 33 ASP A 40 -1 O GLU A 38 N ARG A 21 SHEET 4 AA1 5 THR A 81 GLU A 87 -1 O MET A 86 N VAL A 35 SHEET 5 AA1 5 TYR A 70 ASP A 76 -1 N ILE A 74 O TYR A 83 SHEET 1 AA2 3 GLY A 92 ASP A 93 0 SHEET 2 AA2 3 VAL A 147 LEU A 149 -1 O LEU A 149 N GLY A 92 SHEET 3 AA2 3 VAL A 155 LEU A 157 -1 O LYS A 156 N PHE A 148 SITE 1 AC1 12 ILE A 14 CYS A 22 VAL A 35 MET A 86 SITE 2 AC1 12 GLU A 87 TYR A 88 CYS A 89 GLY A 92 SITE 3 AC1 12 LYS A 100 PHE A 148 CL A 302 HOH A 448 SITE 1 AC2 1 LCB A 301 SITE 1 AC3 2 ARG A 235 HOH A 445 CRYST1 99.390 57.040 78.400 90.00 133.07 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 0.010061 0.000000 0.009405 0.00000 SCALE2 0.000000 0.017532 0.000000 0.00000 SCALE3 0.000000 0.000000 0.017460 0.00000