HEADER TRANSFERASE 09-SEP-15 5DMM TITLE CRYSTAL STRUCTURE OF THE HOMOCYSTEINE METHYLTRANSFERASE MMUM FROM TITLE 2 ESCHERICHIA COLI, METALLATED FORM COMPND MOL_ID: 1; COMPND 2 MOLECULE: HOMOCYSTEINE S-METHYLTRANSFERASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: S-METHYLMETHIONINE:HOMOCYSTEINE METHYLTRANSFERASE; COMPND 5 EC: 2.1.1.10; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI (STRAIN K12); SOURCE 3 ORGANISM_TAXID: 83333; SOURCE 4 STRAIN: K12; SOURCE 5 GENE: MMUM, YAGD, B0261, JW0253; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: C43 KEYWDS HOMOCYSTEINE METHYLTRANSFERASE, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR K.LI,G.LI,L.M.T.BRADBURY,H.D.ANDREW,S.D.BRUNER REVDAT 6 01-MAY-24 5DMM 1 SSBOND LINK REVDAT 5 03-APR-24 5DMM 1 HETSYN REVDAT 4 15-NOV-23 5DMM 1 REMARK REVDAT 3 27-SEP-23 5DMM 1 JRNL REMARK LINK REVDAT 2 03-FEB-16 5DMM 1 JRNL REVDAT 1 25-NOV-15 5DMM 0 JRNL AUTH K.LI,G.LI,L.M.BRADBURY,A.D.HANSON,S.D.BRUNER JRNL TITL CRYSTAL STRUCTURE OF THE HOMOCYSTEINE METHYLTRANSFERASE MMUM JRNL TITL 2 FROM ESCHERICHIA COLI. JRNL REF BIOCHEM.J. V. 473 277 2016 JRNL REFN ESSN 1470-8728 JRNL PMID 26564203 JRNL DOI 10.1042/BJ20150980 REMARK 2 REMARK 2 RESOLUTION. 1.78 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.9_1692 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) : 1.78 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 24.23 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 93.4 REMARK 3 NUMBER OF REFLECTIONS : NULL REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.184 REMARK 3 R VALUE (WORKING SET) : 0.183 REMARK 3 FREE R VALUE : 0.205 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.280 REMARK 3 FREE R VALUE TEST SET COUNT : 1427 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 24.2269 - 3.8289 0.85 2436 145 0.1569 0.1636 REMARK 3 2 3.8289 - 3.0410 0.90 2520 112 0.1611 0.1946 REMARK 3 3 3.0410 - 2.6571 0.92 2543 148 0.1867 0.2229 REMARK 3 4 2.6571 - 2.4144 0.93 2558 140 0.1916 0.2034 REMARK 3 5 2.4144 - 2.2415 0.95 2570 145 0.1845 0.2095 REMARK 3 6 2.2415 - 2.1094 0.95 2561 179 0.1848 0.2156 REMARK 3 7 2.1094 - 2.0038 0.96 2614 122 0.1985 0.2102 REMARK 3 8 2.0038 - 1.9166 0.96 2575 151 0.2131 0.2214 REMARK 3 9 1.9166 - 1.8429 0.97 2683 113 0.2397 0.2799 REMARK 3 10 1.8429 - 1.7793 0.95 2538 172 0.2573 0.2838 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) : 0.160 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 20.370 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 : 0.007 2238 REMARK 3 ANGLE : 1.119 3047 REMARK 3 CHIRALITY : 0.044 349 REMARK 3 PLANARITY : 0.006 402 REMARK 3 DIHEDRAL : 14.163 801 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 5DMM COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 14-SEP-15. REMARK 100 THE DEPOSITION ID IS D_1000213171. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 22-JUL-15 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.8 REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 21-ID-G REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9787 REMARK 200 MONOCHROMATOR : DIAMOND [111] REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 300 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS DARWIN 13.4.0 REMARK 200 DATA SCALING SOFTWARE : AIMLESS 0.5.8 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 13523 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.779 REMARK 200 RESOLUTION RANGE LOW (A) : 24.230 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.4 REMARK 200 DATA REDUNDANCY : 5.200 REMARK 200 R MERGE (I) : 0.09300 REMARK 200 R SYM (I) : 0.10400 REMARK 200 FOR THE DATA SET : 14.8600 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.78 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.84 REMARK 200 COMPLETENESS FOR SHELL (%) : 95.4 REMARK 200 DATA REDUNDANCY IN SHELL : 5.00 REMARK 200 R MERGE FOR SHELL (I) : 0.66000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.490 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP 2.12 REMARK 200 STARTING MODEL: 1Q7M REMARK 200 REMARK 200 REMARK: ROD-SHAPED REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 48.93 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.41 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1.6 M AMMONIUM SULPHATE, 10% V/V REMARK 280 GLYCEROL AND 0.1 M SODIUM ACETATE PH 4.8, PH 4.6, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 298K 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 39.47450 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 42.96200 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 43.83100 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 39.47450 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 42.96200 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 43.83100 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 39.47450 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 42.96200 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 43.83100 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 39.47450 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 42.96200 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 43.83100 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: 430 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 11410 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -52.0 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 HOH A 636 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 724 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 SER A 2 REMARK 465 GLN A 3 REMARK 465 ASN A 4 REMARK 465 GLU A 258 REMARK 465 HIS A 259 REMARK 465 TYR A 260 REMARK 465 ASP A 261 REMARK 465 ALA A 262 REMARK 465 VAL A 263 REMARK 465 SER A 264 REMARK 465 LYS A 265 REMARK 465 THR A 266 REMARK 465 TRP A 267 REMARK 465 HIS A 268 REMARK 465 HIS A 269 REMARK 465 HIS A 270 REMARK 465 GLY A 271 REMARK 465 GLU A 272 REMARK 465 HIS A 273 REMARK 465 CYS A 274 REMARK 465 ALA A 275 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 ASP A 20 -162.91 -100.05 REMARK 500 ALA A 69 48.72 -83.38 REMARK 500 CYS A 295 -128.97 -114.08 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 502 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 104 OE1 REMARK 620 2 GLU A 104 OE2 54.5 REMARK 620 3 ASP A 138 OD1 106.4 53.1 REMARK 620 4 HIS A 140 NE2 106.8 54.5 4.2 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN A 503 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 109 OE2 REMARK 620 2 GLU A 144 OE1 39.4 REMARK 620 3 HOH A 738 O 41.8 4.3 REMARK 620 4 HOH A 741 O 39.3 1.5 3.3 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN A 501 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 229 SG REMARK 620 2 CYS A 295 SG 134.3 REMARK 620 3 HCS A 505 SD 82.8 107.0 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 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue ZN A 502 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue ZN A 503 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue BME A 504 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue HCS A 505 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 5DMN RELATED DB: PDB DBREF 5DMM A 1 310 UNP Q47690 MMUM_ECOLI 1 310 SEQRES 1 A 310 MET SER GLN ASN ASN PRO LEU ARG ALA LEU LEU ASP LYS SEQRES 2 A 310 GLN ASP ILE LEU LEU LEU ASP GLY ALA MET ALA THR GLU SEQRES 3 A 310 LEU GLU ALA ARG GLY CYS ASN LEU ALA ASP SER LEU TRP SEQRES 4 A 310 SER ALA LYS VAL LEU VAL GLU ASN PRO GLU LEU ILE ARG SEQRES 5 A 310 GLU VAL HIS LEU ASP TYR TYR ARG ALA GLY ALA GLN CYS SEQRES 6 A 310 ALA ILE THR ALA SER TYR GLN ALA THR PRO ALA GLY PHE SEQRES 7 A 310 ALA ALA ARG GLY LEU ASP GLU ALA GLN SER LYS ALA LEU SEQRES 8 A 310 ILE GLY LYS SER VAL GLU LEU ALA ARG LYS ALA ARG GLU SEQRES 9 A 310 ALA TYR LEU ALA GLU ASN PRO GLN ALA GLY THR LEU LEU SEQRES 10 A 310 VAL ALA GLY SER VAL GLY PRO TYR GLY ALA TYR LEU ALA SEQRES 11 A 310 ASP GLY SER GLU TYR ARG GLY ASP TYR HIS CYS SER VAL SEQRES 12 A 310 GLU ALA PHE GLN ALA PHE HIS ARG PRO ARG VAL GLU ALA SEQRES 13 A 310 LEU LEU ASP ALA GLY ALA ASP LEU LEU ALA CYS GLU THR SEQRES 14 A 310 LEU PRO ASN PHE SER GLU ILE GLU ALA LEU ALA GLU LEU SEQRES 15 A 310 LEU THR ALA TYR PRO ARG ALA ARG ALA TRP PHE SER PHE SEQRES 16 A 310 THR LEU ARG ASP SER GLU HIS LEU SER ASP GLY THR PRO SEQRES 17 A 310 LEU ARG ASP VAL VAL ALA LEU LEU ALA GLY TYR PRO GLN SEQRES 18 A 310 VAL VAL ALA LEU GLY ILE ASN CYS ILE ALA LEU GLU ASN SEQRES 19 A 310 THR THR ALA ALA LEU GLN HIS LEU HIS GLY LEU THR VAL SEQRES 20 A 310 LEU PRO LEU VAL VAL TYR PRO ASN SER GLY GLU HIS TYR SEQRES 21 A 310 ASP ALA VAL SER LYS THR TRP HIS HIS HIS GLY GLU HIS SEQRES 22 A 310 CYS ALA GLN LEU ALA ASP TYR LEU PRO GLN TRP GLN ALA SEQRES 23 A 310 ALA GLY ALA ARG LEU ILE GLY GLY CYS CYS ARG THR THR SEQRES 24 A 310 PRO ALA ASP ILE ALA ALA LEU LYS ALA ARG SER HET ZN A 501 1 HET ZN A 502 1 HET ZN A 503 1 HET BME A 504 4 HET HCS A 505 8 HETNAM ZN ZINC ION HETNAM BME BETA-MERCAPTOETHANOL HETNAM HCS 2-AMINO-4-MERCAPTO-BUTYRIC ACID HETSYN HCS L-HOMOCYSTEINE FORMUL 2 ZN 3(ZN 2+) FORMUL 5 BME C2 H6 O S FORMUL 6 HCS C4 H9 N O2 S FORMUL 7 HOH *180(H2 O) HELIX 1 AA1 LEU A 7 ASP A 12 1 6 HELIX 2 AA2 MET A 23 ARG A 30 1 8 HELIX 3 AA3 LEU A 38 ASN A 47 1 10 HELIX 4 AA4 ASN A 47 GLY A 62 1 16 HELIX 5 AA5 THR A 74 ALA A 79 1 6 HELIX 6 AA6 ALA A 80 GLY A 82 5 3 HELIX 7 AA7 ASP A 84 ASN A 110 1 27 HELIX 8 AA8 PRO A 111 GLY A 114 5 4 HELIX 9 AA9 PRO A 124 ALA A 130 1 7 HELIX 10 AB1 SER A 142 ALA A 160 1 19 HELIX 11 AB2 ASN A 172 THR A 184 1 13 HELIX 12 AB3 PRO A 208 GLY A 218 1 11 HELIX 13 AB4 ALA A 231 GLU A 233 5 3 HELIX 14 AB5 ASN A 234 GLY A 244 1 11 HELIX 15 AB6 GLN A 276 ASP A 279 5 4 HELIX 16 AB7 TYR A 280 ALA A 287 1 8 HELIX 17 AB8 THR A 299 SER A 310 1 12 SHEET 1 AA1 8 LEU A 17 LEU A 18 0 SHEET 2 AA1 8 ALA A 289 ILE A 292 1 O ARG A 290 N LEU A 17 SHEET 3 AA1 8 LEU A 250 TYR A 253 1 N LEU A 250 O ARG A 290 SHEET 4 AA1 8 VAL A 222 ASN A 228 1 N LEU A 225 O VAL A 251 SHEET 5 AA1 8 ALA A 191 PHE A 195 1 N PHE A 195 O GLY A 226 SHEET 6 AA1 8 LEU A 164 LEU A 170 1 N CYS A 167 O SER A 194 SHEET 7 AA1 8 LEU A 117 VAL A 122 1 N VAL A 122 O ALA A 166 SHEET 8 AA1 8 CYS A 65 ILE A 67 1 N ALA A 66 O ALA A 119 SHEET 1 AA2 2 LEU A 197 ASP A 199 0 SHEET 2 AA2 2 HIS A 202 LEU A 203 -1 O HIS A 202 N ARG A 198 LINK SG CYS A 296 S2 BME A 504 1555 1555 2.03 LINK OE1 GLU A 104 ZN ZN A 502 1555 6555 2.66 LINK OE2 GLU A 104 ZN ZN A 502 1555 6555 1.86 LINK OE2 GLU A 109 ZN ZN A 503 1555 8455 1.95 LINK OD1 ASP A 138 ZN ZN A 502 1555 1555 2.04 LINK NE2 HIS A 140 ZN ZN A 502 1555 1555 2.03 LINK OE1 GLU A 144 ZN ZN A 503 1555 1555 2.08 LINK SG CYS A 229 ZN ZN A 501 1555 1555 2.55 LINK SG CYS A 295 ZN ZN A 501 1555 1555 2.00 LINK ZN ZN A 501 SD HCS A 505 1555 1555 2.83 LINK ZN ZN A 503 O HOH A 738 1555 1555 2.52 LINK ZN ZN A 503 O HOH A 741 1555 1555 2.10 SITE 1 AC1 5 CYS A 229 ASN A 255 CYS A 295 CYS A 296 SITE 2 AC1 5 HCS A 505 SITE 1 AC2 4 GLU A 104 ASP A 138 HIS A 140 HOH A 745 SITE 1 AC3 4 GLU A 109 GLU A 144 HOH A 738 HOH A 741 SITE 1 AC4 3 ALA A 24 CYS A 296 ARG A 297 SITE 1 AC5 8 ILE A 67 TYR A 71 SER A 121 GLU A 168 SITE 2 AC5 8 THR A 169 CYS A 229 ZN A 501 HOH A 606 CRYST1 78.949 85.924 87.662 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 0.012666 0.000000 0.000000 0.00000 SCALE2 0.000000 0.011638 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011407 0.00000