HEADER HYDROLASE/DNA 09-JUN-16 5KEG TITLE CRYSTAL STRUCTURE OF APOBEC3A IN COMPLEX WITH A SINGLE-STRANDED DNA COMPND MOL_ID: 1; COMPND 2 MOLECULE: DNA DC->DU-EDITING ENZYME APOBEC-3A; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: A3A,PHORBOLIN-1; COMPND 5 EC: 3.5.4.-; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES; COMPND 8 MOL_ID: 2; COMPND 9 MOLECULE: DNA (5'-D(*TP*TP*CP*TP*T)-3'); COMPND 10 CHAIN: B; COMPND 11 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: APOBEC3A; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 MOL_ID: 2; SOURCE 9 SYNTHETIC: YES; SOURCE 10 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT; SOURCE 11 ORGANISM_TAXID: 32630 KEYWDS APOBEC3A, DNA CYTIDINE DEAMINASE COMPLEX WITH A SUBSTRATE DNA, KEYWDS 2 HYDROLASE-DNA COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR T.KOUNO,B.J.HILBERT,T.SILVAS,W.E.ROYER,H.MATSUO,C.A.SCHIFFER REVDAT 5 16-OCT-24 5KEG 1 REMARK REVDAT 4 27-SEP-23 5KEG 1 REMARK REVDAT 3 25-DEC-19 5KEG 1 REMARK REVDAT 2 13-SEP-17 5KEG 1 REMARK REVDAT 1 10-MAY-17 5KEG 0 JRNL AUTH T.KOUNO,T.V.SILVAS,B.J.HILBERT,S.M.D.SHANDILYA,M.F.BOHN, JRNL AUTH 2 B.A.KELCH,W.E.ROYER,M.SOMASUNDARAN,N.KURT YILMAZ,H.MATSUO, JRNL AUTH 3 C.A.SCHIFFER JRNL TITL CRYSTAL STRUCTURE OF APOBEC3A BOUND TO SINGLE-STRANDED DNA JRNL TITL 2 REVEALS STRUCTURAL BASIS FOR CYTIDINE DEAMINATION AND JRNL TITL 3 SPECIFICITY. JRNL REF NAT COMMUN V. 8 15024 2017 JRNL REFN ESSN 2041-1723 JRNL PMID 28452355 JRNL DOI 10.1038/NCOMMS15024 REMARK 2 REMARK 2 RESOLUTION. 2.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 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) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.71 REMARK 3 MIN(FOBS/SIGMA_FOBS) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 97.9 REMARK 3 NUMBER OF REFLECTIONS : 12146 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.177 REMARK 3 FREE R VALUE : 0.225 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL 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 2.4200 - 2.2000 0.92 0 0 0.1990 0.2660 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL REMARK 3 SOLVENT RADIUS : NULL REMARK 3 SHRINKAGE RADIUS : NULL REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : NULL REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : NULL 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 : NULL NULL REMARK 3 ANGLE : NULL NULL REMARK 3 CHIRALITY : NULL NULL REMARK 3 PLANARITY : NULL NULL REMARK 3 DIHEDRAL : NULL NULL 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 5KEG COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 13-JUN-16. REMARK 100 THE DEPOSITION ID IS D_1000222031. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 04-FEB-16 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 0.05 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU MICROMAX-007 HF REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : RIGAKU SATURN 944 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-3000 REMARK 200 DATA SCALING SOFTWARE : HKL-3000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 12162 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.200 REMARK 200 RESOLUTION RANGE LOW (A) : 30.710 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.2 REMARK 200 DATA REDUNDANCY : 13.10 REMARK 200 R MERGE (I) : 0.09100 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 27.9000 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) : 2.24 REMARK 200 COMPLETENESS FOR SHELL (%) : 82.9 REMARK 200 DATA REDUNDANCY IN SHELL : 8.40 REMARK 200 R MERGE FOR SHELL (I) : 0.52800 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 3.000 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: 4XXO REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.13 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.13 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 100 MM MOPS 50 MM MGCL2 50 MM CACL2 REMARK 280 23% PEG 3350 15% 2-METHYL-2,4-PENTANEDIOL, PH 7.5, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 2 2 2 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,Y,-Z REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z+1/2 REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 X+1/2,-Y+1/2,-Z+1/2 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 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 28.29150 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 36.33300 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 57.48550 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 28.29150 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 36.33300 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 57.48550 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 28.29150 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 36.33300 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 57.48550 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 28.29150 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 36.33300 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 57.48550 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 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 HOH A 305 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 395 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 GLY A -3 REMARK 465 PRO A -2 REMARK 465 GLY A -1 REMARK 465 HIS A 0 REMARK 465 MET A 1 REMARK 465 GLU A 2 REMARK 465 ALA A 3 REMARK 465 SER A 4 REMARK 465 PRO A 5 REMARK 465 ALA A 6 REMARK 465 SER A 7 REMARK 465 GLY A 8 REMARK 465 PRO A 9 REMARK 465 GLN A 197 REMARK 465 GLY A 198 REMARK 465 ASN A 199 REMARK 465 DT B -5 REMARK 465 DT B -4 REMARK 465 DT B -3 REMARK 465 DT B -2 REMARK 465 DT B -1 REMARK 465 DT B 0 REMARK 465 DT B 6 REMARK 465 DT B 7 REMARK 465 DT B 8 REMARK 465 DT B 9 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 10 CG CD NE CZ NH1 NH2 REMARK 470 HIS A 11 CG ND1 CD2 CE1 NE2 REMARK 470 HIS A 16 CG ND1 CD2 CE1 NE2 REMARK 470 LYS A 30 CG CD CE NZ REMARK 470 ASN A 42 CG OD1 ND2 REMARK 470 VAL A 46 CG1 CG2 REMARK 470 LYS A 47 CG CD CE NZ REMARK 470 GLN A 50 CG CD OE1 NE2 REMARK 470 GLN A 58 CG CD OE1 NE2 REMARK 470 LYS A 60 CG CD CE NZ REMARK 470 LEU A 62 CG CD1 CD2 REMARK 470 LEU A 63 CG CD1 CD2 REMARK 470 PHE A 66 CG CD1 CD2 CE1 CE2 CZ REMARK 470 TYR A 67 CG CD1 CD2 CE1 CE2 CZ OH REMARK 470 ASP A 177 CG OD1 OD2 REMARK 470 GLU A 181 CG CD OE1 OE2 REMARK 470 ASN A 196 CG OD1 ND2 REMARK 470 DT B 1 P OP1 OP2 O5' C2 O2 N3 REMARK 470 DT B 1 C4 O4 C5 C7 C6 REMARK 470 DT B 5 C5' C4' O4' C3' O3' C2' C1' REMARK 470 DT B 5 N1 C2 O2 N3 C4 O4 C5 REMARK 470 DT B 5 C7 C6 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 301 O HOH A 314 1.84 REMARK 500 O HOH A 378 O HOH A 382 2.02 REMARK 500 O HOH A 365 O HOH A 393 2.18 REMARK 500 O HOH A 380 O HOH A 394 2.19 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 HIS A 29 36.20 -89.05 REMARK 500 MET A 48 74.00 -110.30 REMARK 500 ASN A 61 78.36 -159.30 REMARK 500 ASN A 117 73.03 -105.81 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 201 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 70 ND1 REMARK 620 2 CYS A 101 SG 113.9 REMARK 620 3 CYS A 106 SG 109.2 109.7 REMARK 620 N 1 2 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue ZN A 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CL A 203 DBREF 5KEG A 1 199 UNP P31941 ABC3A_HUMAN 1 199 DBREF 5KEG B -5 9 PDB 5KEG 5KEG -5 9 SEQADV 5KEG GLY A -3 UNP P31941 EXPRESSION TAG SEQADV 5KEG PRO A -2 UNP P31941 EXPRESSION TAG SEQADV 5KEG GLY A -1 UNP P31941 EXPRESSION TAG SEQADV 5KEG HIS A 0 UNP P31941 EXPRESSION TAG SEQADV 5KEG ALA A 72 UNP P31941 GLU 72 ENGINEERED MUTATION SEQADV 5KEG ALA A 171 UNP P31941 CYS 171 ENGINEERED MUTATION SEQRES 1 A 203 GLY PRO GLY HIS MET GLU ALA SER PRO ALA SER GLY PRO SEQRES 2 A 203 ARG HIS LEU MET ASP PRO HIS ILE PHE THR SER ASN PHE SEQRES 3 A 203 ASN ASN GLY ILE GLY ARG HIS LYS THR TYR LEU CYS TYR SEQRES 4 A 203 GLU VAL GLU ARG LEU ASP ASN GLY THR SER VAL LYS MET SEQRES 5 A 203 ASP GLN HIS ARG GLY PHE LEU HIS ASN GLN ALA LYS ASN SEQRES 6 A 203 LEU LEU CYS GLY PHE TYR GLY ARG HIS ALA ALA LEU ARG SEQRES 7 A 203 PHE LEU ASP LEU VAL PRO SER LEU GLN LEU ASP PRO ALA SEQRES 8 A 203 GLN ILE TYR ARG VAL THR TRP PHE ILE SER TRP SER PRO SEQRES 9 A 203 CYS PHE SER TRP GLY CYS ALA GLY GLU VAL ARG ALA PHE SEQRES 10 A 203 LEU GLN GLU ASN THR HIS VAL ARG LEU ARG ILE PHE ALA SEQRES 11 A 203 ALA ARG ILE TYR ASP TYR ASP PRO LEU TYR LYS GLU ALA SEQRES 12 A 203 LEU GLN MET LEU ARG ASP ALA GLY ALA GLN VAL SER ILE SEQRES 13 A 203 MET THR TYR ASP GLU PHE LYS HIS CYS TRP ASP THR PHE SEQRES 14 A 203 VAL ASP HIS GLN GLY ALA PRO PHE GLN PRO TRP ASP GLY SEQRES 15 A 203 LEU ASP GLU HIS SER GLN ALA LEU SER GLY ARG LEU ARG SEQRES 16 A 203 ALA ILE LEU GLN ASN GLN GLY ASN SEQRES 1 B 15 DT DT DT DT DT DT DT DT DC DT DT DT DT SEQRES 2 B 15 DT DT HET ZN A 201 1 HET CA A 202 1 HET CL A 203 1 HETNAM ZN ZINC ION HETNAM CA CALCIUM ION HETNAM CL CHLORIDE ION FORMUL 3 ZN ZN 2+ FORMUL 4 CA CA 2+ FORMUL 5 CL CL 1- FORMUL 6 HOH *100(H2 O) HELIX 1 AA1 ASP A 14 PHE A 22 1 9 HELIX 2 AA2 ASP A 49 ARG A 52 5 4 HELIX 3 AA3 HIS A 70 GLN A 83 1 14 HELIX 4 AA4 GLY A 105 ASN A 117 1 13 HELIX 5 AA5 LEU A 135 ALA A 146 1 12 HELIX 6 AA6 THR A 154 VAL A 166 1 13 HELIX 7 AA7 GLY A 178 ASN A 196 1 19 SHEET 1 AA1 3 THR A 44 LYS A 47 0 SHEET 2 AA1 3 TYR A 32 ASP A 41 -1 N ASP A 41 O THR A 44 SHEET 3 AA1 3 GLY A 53 HIS A 56 -1 O LEU A 55 N LEU A 33 SHEET 1 AA2 5 THR A 44 LYS A 47 0 SHEET 2 AA2 5 TYR A 32 ASP A 41 -1 N ASP A 41 O THR A 44 SHEET 3 AA2 5 ILE A 89 ILE A 96 -1 O PHE A 95 N CYS A 34 SHEET 4 AA2 5 VAL A 120 ALA A 126 1 O ARG A 121 N VAL A 92 SHEET 5 AA2 5 GLN A 149 ILE A 152 1 O SER A 151 N ILE A 124 SSBOND 1 CYS A 64 CYS A 64 1555 3557 1.97 LINK ND1 HIS A 70 ZN ZN A 201 1555 1555 2.08 LINK SG CYS A 101 ZN ZN A 201 1555 1555 2.32 LINK SG CYS A 106 ZN ZN A 201 1555 1555 2.15 SITE 1 AC1 4 HIS A 70 CYS A 101 CYS A 106 CL A 203 SITE 1 AC2 6 HIS A 70 PRO A 100 CYS A 101 CYS A 106 SITE 2 AC2 6 ZN A 201 DC B 3 CRYST1 56.583 72.666 114.971 90.00 90.00 90.00 I 2 2 2 8 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 0.017673 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013762 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008698 0.00000