HEADER APOPTOSIS 25-JAN-24 8Y1Y TITLE CRYSTAL STRUCTURE OF THE MCL-1 IN COMPLEX WITH A LONG BH3 PEPTIDE OF TITLE 2 BAK COMPND MOL_ID: 1; COMPND 2 MOLECULE: INDUCED MYELOID LEUKEMIA CELL DIFFERENTIATION PROTEIN MCL- COMPND 3 1; COMPND 4 CHAIN: A; COMPND 5 FRAGMENT: UNP RESIDUES 171-327; COMPND 6 SYNONYM: BCL-2-LIKE PROTEIN 3,BCL2-L-3,BCL-2-RELATED PROTEIN COMPND 7 EAT/MCL1,MCL1/EAT; COMPND 8 ENGINEERED: YES; COMPND 9 MOL_ID: 2; COMPND 10 MOLECULE: BH3 PEPTIDE FROM BCL-2 HOMOLOGOUS ANTAGONIST/KILLER; COMPND 11 CHAIN: B; COMPND 12 SYNONYM: APOPTOSIS REGULATOR BAK,BCL-2-LIKE PROTEIN 7,BCL2-L-7; COMPND 13 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: MCL1, BCL2L3; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 MOL_ID: 2; SOURCE 9 SYNTHETIC: YES; SOURCE 10 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 11 ORGANISM_COMMON: HUMAN; SOURCE 12 ORGANISM_TAXID: 9606 KEYWDS MCL-1, BAK, BH3, APOPTOSIS EXPDTA X-RAY DIFFRACTION AUTHOR H.WANG,M.GUO,H.WEI,Y.CHEN REVDAT 2 19-FEB-25 8Y1Y 1 JRNL REVDAT 1 29-JAN-25 8Y1Y 0 JRNL AUTH H.WEI,H.WANG,S.XIANG,J.WANG,L.QU,X.CHEN,M.GUO,X.LU,Y.CHEN JRNL TITL DECIPHERING MOLECULAR SPECIFICITY IN MCL-1/BAK INTERACTION JRNL TITL 2 AND ITS IMPLICATIONS FOR DESIGNING POTENT MCL-1 INHIBITORS. JRNL REF CELL DEATH DIFFER. 2025 JRNL REFN ISSN 1350-9047 JRNL PMID 39901037 JRNL DOI 10.1038/S41418-025-01454-2 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH Y.CHEN,H.WEI,H.WANG,S.XIANG,J.WANG,L.QU,X.CHEN,M.GUO,X.LU REMARK 1 TITL DECIPHERING MOLECULAR SPECIFICITY IN MCL-1/BAK INTERACTION REMARK 1 TITL 2 AND ITS IMPLICATIONS FOR DESIGNING POTENT MCL-1 INHIBITORS REMARK 1 REF RES SQ 2024 REMARK 1 REFN ESSN 2693-5015 REMARK 1 DOI 10.21203/RS.3.RS-4708498/V1 REMARK 2 REMARK 2 RESOLUTION. 2.01 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (1.20.1_4487: ???) 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) : 2.01 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 39.47 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.330 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 3 NUMBER OF REFLECTIONS : 12833 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.212 REMARK 3 R VALUE (WORKING SET) : 0.207 REMARK 3 FREE R VALUE : 0.252 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.010 REMARK 3 FREE R VALUE TEST SET COUNT : 2364 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 39.4700 - 5.1700 0.99 1252 146 0.2224 0.2524 REMARK 3 2 5.1700 - 4.1100 0.99 1258 132 0.1723 0.2060 REMARK 3 3 4.1000 - 3.5900 0.98 1234 142 0.1724 0.2412 REMARK 3 4 3.5900 - 3.2600 0.99 1236 149 0.1856 0.2659 REMARK 3 5 3.2600 - 3.0300 1.00 1256 139 0.1878 0.2102 REMARK 3 6 3.0300 - 2.8500 0.99 1275 137 0.2170 0.2365 REMARK 3 7 2.8500 - 2.7000 0.99 1264 132 0.2095 0.2629 REMARK 3 8 2.7000 - 2.5900 0.99 1261 137 0.2038 0.2741 REMARK 3 9 2.5900 - 2.4900 0.99 1220 137 0.2164 0.2506 REMARK 3 10 2.4900 - 2.4000 0.99 1266 135 0.2175 0.2775 REMARK 3 11 2.4000 - 2.3300 0.99 1263 144 0.2237 0.3058 REMARK 3 12 2.3300 - 2.2600 0.98 1207 139 0.2474 0.2763 REMARK 3 13 2.2600 - 2.2000 0.99 1248 151 0.2531 0.2755 REMARK 3 14 2.2000 - 2.1500 0.98 1277 114 0.2625 0.3040 REMARK 3 15 2.1500 - 2.1000 0.98 1235 152 0.2526 0.2777 REMARK 3 16 2.1000 - 2.0500 0.99 1245 142 0.2722 0.3376 REMARK 3 17 2.0500 - 2.0100 0.99 1261 136 0.2897 0.2990 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) : 0.250 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 24.970 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 : 0.005 1382 REMARK 3 ANGLE : 0.643 1858 REMARK 3 CHIRALITY : 0.042 207 REMARK 3 PLANARITY : 0.005 240 REMARK 3 DIHEDRAL : 3.940 188 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 4 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: CHAIN 'A' AND (RESID 172 THROUGH 223 ) REMARK 3 ORIGIN FOR THE GROUP (A): -0.4414 1.4111 2.8287 REMARK 3 T TENSOR REMARK 3 T11: 0.3271 T22: 0.2931 REMARK 3 T33: 0.3021 T12: -0.0010 REMARK 3 T13: 0.0403 T23: -0.0697 REMARK 3 L TENSOR REMARK 3 L11: 4.5913 L22: 3.9412 REMARK 3 L33: 2.9624 L12: 0.2954 REMARK 3 L13: -1.5695 L23: -0.8113 REMARK 3 S TENSOR REMARK 3 S11: 0.3363 S12: -0.6476 S13: 0.9722 REMARK 3 S21: 0.5755 S22: -0.0850 S23: 0.2918 REMARK 3 S31: -0.4165 S32: 0.0211 S33: -0.1710 REMARK 3 TLS GROUP : 2 REMARK 3 SELECTION: CHAIN 'A' AND (RESID 224 THROUGH 254 ) REMARK 3 ORIGIN FOR THE GROUP (A): 0.0307 -18.7070 -2.0056 REMARK 3 T TENSOR REMARK 3 T11: 0.2339 T22: 0.3540 REMARK 3 T33: 0.2999 T12: 0.0482 REMARK 3 T13: -0.0084 T23: -0.0461 REMARK 3 L TENSOR REMARK 3 L11: 4.6996 L22: 4.6432 REMARK 3 L33: 1.6035 L12: 1.6871 REMARK 3 L13: -2.3021 L23: -1.4455 REMARK 3 S TENSOR REMARK 3 S11: -0.1745 S12: -0.7122 S13: -0.2578 REMARK 3 S21: 0.2240 S22: 0.0017 S23: -0.4508 REMARK 3 S31: 0.0944 S32: 0.4362 S33: 0.1400 REMARK 3 TLS GROUP : 3 REMARK 3 SELECTION: CHAIN 'A' AND (RESID 255 THROUGH 320 ) REMARK 3 ORIGIN FOR THE GROUP (A): 3.8098 -5.6049 -3.3125 REMARK 3 T TENSOR REMARK 3 T11: 0.1787 T22: 0.1668 REMARK 3 T33: 0.1843 T12: 0.0027 REMARK 3 T13: 0.0065 T23: -0.0382 REMARK 3 L TENSOR REMARK 3 L11: 4.1916 L22: 3.2301 REMARK 3 L33: 2.7379 L12: 1.1686 REMARK 3 L13: -0.7218 L23: -1.1798 REMARK 3 S TENSOR REMARK 3 S11: -0.0506 S12: -0.2376 S13: 0.0392 REMARK 3 S21: 0.0913 S22: -0.0955 S23: -0.1993 REMARK 3 S31: -0.0651 S32: 0.2613 S33: 0.0743 REMARK 3 TLS GROUP : 4 REMARK 3 SELECTION: CHAIN 'B' AND (RESID 73 THROUGH 92 ) REMARK 3 ORIGIN FOR THE GROUP (A): -2.4752 -7.9536 -15.8106 REMARK 3 T TENSOR REMARK 3 T11: 0.2566 T22: 0.2334 REMARK 3 T33: 0.2455 T12: -0.0261 REMARK 3 T13: -0.0394 T23: -0.0304 REMARK 3 L TENSOR REMARK 3 L11: 2.3375 L22: 3.8699 REMARK 3 L33: 4.1766 L12: -2.0388 REMARK 3 L13: 1.9094 L23: -3.9221 REMARK 3 S TENSOR REMARK 3 S11: 0.1638 S12: 0.2524 S13: -0.1537 REMARK 3 S21: -1.0054 S22: 0.0741 S23: 0.5593 REMARK 3 S31: 0.4071 S32: -0.1560 S33: -0.1524 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 8Y1Y COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 02-FEB-24. REMARK 100 THE DEPOSITION ID IS D_1300044446. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 18-OCT-21 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 : SSRF REMARK 200 BEAMLINE : BL02U1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.979183 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS EIGER2 S 9M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 12840 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.010 REMARK 200 RESOLUTION RANGE LOW (A) : 39.470 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 200 DATA REDUNDANCY : 5.200 REMARK 200 R MERGE (I) : 0.11310 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 10.3100 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.01 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.08 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.5 REMARK 200 DATA REDUNDANCY IN SHELL : 5.30 REMARK 200 R MERGE FOR SHELL (I) : 1.02200 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.640 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHENIX REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.30 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.29 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.01M NICKEL (II) CHLORIDE, 0.1M TRIS REMARK 280 -HCL PH 8.5, 20% POLYETHYLENE GLYCOL MONOMETHYL ETHER 2000, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291K 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 26.24200 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 29.93850 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 29.59350 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 29.93850 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 26.24200 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 29.59350 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: 1680 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 8410 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -32.0 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 GLU A 171 REMARK 465 THR A 196 REMARK 465 LYS A 197 REMARK 465 PRO A 198 REMARK 465 GLU A 322 REMARK 465 ASP A 323 REMARK 465 LEU A 324 REMARK 465 GLU A 325 REMARK 465 GLY A 326 REMARK 465 GLY A 327 REMARK 465 GLY B 72 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 194 CG CD CE NZ REMARK 470 GLU A 240 CG CD OE1 OE2 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 HIS A 320 46.08 27.15 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 ZN A 401 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 320 NE2 REMARK 620 2 HOH B 104 O 103.7 REMARK 620 N 1 DBREF 8Y1Y A 171 327 UNP Q07820 MCL1_HUMAN 171 327 DBREF 8Y1Y B 72 92 UNP Q16611 BAK_HUMAN 72 92 SEQRES 1 A 157 GLU ASP GLU LEU TYR ARG GLN SER LEU GLU ILE ILE SER SEQRES 2 A 157 ARG TYR LEU ARG GLU GLN ALA THR GLY ALA LYS ASP THR SEQRES 3 A 157 LYS PRO MET GLY ARG SER GLY ALA THR SER ARG LYS ALA SEQRES 4 A 157 LEU GLU THR LEU ARG ARG VAL GLY ASP GLY VAL GLN ARG SEQRES 5 A 157 ASN HIS GLU THR ALA PHE GLN GLY MET LEU ARG LYS LEU SEQRES 6 A 157 ASP ILE LYS ASN GLU ASP ASP VAL LYS SER LEU SER ARG SEQRES 7 A 157 VAL MET ILE HIS VAL PHE SER ASP GLY VAL THR ASN TRP SEQRES 8 A 157 GLY ARG ILE VAL THR LEU ILE SER PHE GLY ALA PHE VAL SEQRES 9 A 157 ALA LYS HIS LEU LYS THR ILE ASN GLN GLU SER CYS ILE SEQRES 10 A 157 GLU PRO LEU ALA GLU SER ILE THR ASP VAL LEU VAL ARG SEQRES 11 A 157 THR LYS ARG ASP TRP LEU VAL LYS GLN ARG GLY TRP ASP SEQRES 12 A 157 GLY PHE VAL GLU PHE PHE HIS VAL GLU ASP LEU GLU GLY SEQRES 13 A 157 GLY SEQRES 1 B 21 GLY GLN VAL GLY ARG GLN LEU ALA ILE ILE GLY ASP ASP SEQRES 2 B 21 ILE ASN ARG ARG TYR ASP SER GLU HET ZN A 401 1 HETNAM ZN ZINC ION FORMUL 3 ZN ZN 2+ FORMUL 4 HOH *54(H2 O) HELIX 1 AA1 ASP A 172 GLY A 192 1 21 HELIX 2 AA2 SER A 202 HIS A 224 1 23 HELIX 3 AA3 HIS A 224 ASP A 236 1 13 HELIX 4 AA4 GLU A 240 LYS A 244 5 5 HELIX 5 AA5 SER A 245 VAL A 253 1 9 HELIX 6 AA6 ASN A 260 ILE A 281 1 22 HELIX 7 AA7 GLN A 283 SER A 285 5 3 HELIX 8 AA8 CYS A 286 GLN A 309 1 24 HELIX 9 AA9 ARG A 310 HIS A 320 1 11 HELIX 10 AB1 VAL B 74 SER B 91 1 18 LINK NE2 HIS A 320 ZN ZN A 401 1555 3554 2.47 LINK ZN ZN A 401 O HOH B 104 1555 3544 1.85 CRYST1 52.484 59.187 59.877 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 0.019053 0.000000 0.000000 0.00000 SCALE2 0.000000 0.016896 0.000000 0.00000 SCALE3 0.000000 0.000000 0.016701 0.00000