HEADER HYDROLASE 03-JUL-07 2JSD TITLE SOLUTION STRUCTURE OF MMP20 COMPLEXED WITH NNGH COMPND MOL_ID: 1; COMPND 2 MOLECULE: MATRIX METALLOPROTEINASE-20; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: CATALYTIC DOMAIN, RESIDUES 113-272; COMPND 5 SYNONYM: MMP-20, ENAMEL METALLOPROTEINASE, ENAMELYSIN; COMPND 6 EC: 3.4.24.-; 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 TISSUE: ODONTOBLAST; SOURCE 6 GENE: MMP20; SOURCE 7 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 8 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 9 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 10 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 11 EXPRESSION_SYSTEM_PLASMID: PET21A KEYWDS MMP-NNGH, STRUCTURAL GENOMICS, STRUCTURAL PROTEOMICS IN EUROPE, KEYWDS 2 SPINE, SPINE-2, SPINE2-COMPLEXES, HYDROLASE EXPDTA SOLUTION NMR NUMMDL 20 AUTHOR Y.ARENDT,L.BANCI,I.BERTINI,F.CANTINI,R.COZZI,R.DEL CONTE,L.GONNELLI, AUTHOR 2 STRUCTURAL PROTEOMICS IN EUROPE (SPINE) REVDAT 3 16-MAR-22 2JSD 1 REMARK REVDAT 2 24-FEB-09 2JSD 1 VERSN REVDAT 1 20-NOV-07 2JSD 0 JRNL AUTH Y.ARENDT,L.BANCI,I.BERTINI,F.CANTINI,R.COZZI,R.DEL CONTE, JRNL AUTH 2 L.GONNELLI JRNL TITL CATALYTIC DOMAIN OF MMP20 (ENAMELYSIN) - THE NMR STRUCTURE JRNL TITL 2 OF A NEW MATRIX METALLOPROTEINASE. JRNL REF FEBS LETT. V. 581 4723 2007 JRNL REFN ISSN 0014-5793 JRNL PMID 17869250 JRNL DOI 10.1016/J.FEBSLET.2007.08.069 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CYANA 2.1, AMBER 8.0, QUEEN, AQUA REMARK 3 AUTHORS : GUNTERT, MUMENTHALER AND WUTHRICH (CYANA), CASE, REMARK 3 DARDEN, CHEATHAM, III, SIMMERLING, WANG, DUKE, LUO, REMARK 3 ... AND KOLL (AMBER), NABUURS, SPRONK, KRIEGER, REMARK 3 MAASSEN, VRIEND AND VUISTER (QUEEN), RULLMANN, REMARK 3 DORELEIJERS AND KAPTEIN (AQUA) REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2JSD COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 13-JUL-07. REMARK 100 THE DEPOSITION ID IS D_1000100229. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 298 REMARK 210 PH : 7.0 REMARK 210 IONIC STRENGTH : 0.05 REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 0.6 MM [U-99% 15N] MMP-20, 90% REMARK 210 H2O/10% D2O; 1 MM MMP-20, 90% REMARK 210 H2O/10% D2O; 0.6 MM [U-13C; U- REMARK 210 15N] MMP-20, 90% H2O/10% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 3D HNCA; 3D CBCA(CO)NH; 3D HNCO; REMARK 210 3D HNCACB; 3D HCCH-TOCSY; 3D 1H- REMARK 210 15N NOESY; 3D 1H-13C NOESY; R2, REMARK 210 R1, 15N-NOE; 2D 1H-1H NOESY REMARK 210 SPECTROMETER FIELD STRENGTH : 800 MHZ; 900 MHZ; 600 MHZ REMARK 210 SPECTROMETER MODEL : AVANCE REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : TOPSPIN, CARA 1.8 REMARK 210 METHOD USED : TORSION ANGLE DYNAMICS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 400 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : TARGET FUNCTION REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: NULL REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 THESE RECORDS ARE MEANINGLESS. 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 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS 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 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 1 GLU A 209 OE1 - CD - OE2 ANGL. DEV. = -7.4 DEGREES REMARK 500 2 ASP A 183 CB - CG - OD2 ANGL. DEV. = -5.9 DEGREES REMARK 500 2 ASP A 202 CB - CG - OD1 ANGL. DEV. = 6.1 DEGREES REMARK 500 2 GLU A 209 OE1 - CD - OE2 ANGL. DEV. = -7.4 DEGREES REMARK 500 3 ARG A 159 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES REMARK 500 4 ARG A 159 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 4 GLU A 209 OE1 - CD - OE2 ANGL. DEV. = -8.4 DEGREES REMARK 500 5 ASP A 178 CB - CG - OD2 ANGL. DEV. = -5.7 DEGREES REMARK 500 5 ASP A 202 CB - CG - OD1 ANGL. DEV. = 5.7 DEGREES REMARK 500 6 ARG A 125 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 6 GLU A 209 OE1 - CD - OE2 ANGL. DEV. = -8.0 DEGREES REMARK 500 7 ARG A 159 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 8 ARG A 186 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 8 ARG A 186 NE - CZ - NH2 ANGL. DEV. = -3.5 DEGREES REMARK 500 9 ARG A 159 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 9 PHE A 182 CB - CG - CD2 ANGL. DEV. = -4.6 DEGREES REMARK 500 9 PHE A 182 CB - CG - CD1 ANGL. DEV. = 4.5 DEGREES REMARK 500 9 GLU A 209 OE1 - CD - OE2 ANGL. DEV. = -7.4 DEGREES REMARK 500 10 ARG A 125 NE - CZ - NH1 ANGL. DEV. = 5.7 DEGREES REMARK 500 11 ARG A 125 CD - NE - CZ ANGL. DEV. = 8.8 DEGREES REMARK 500 11 ARG A 125 NE - CZ - NH1 ANGL. DEV. = 4.4 DEGREES REMARK 500 11 ARG A 125 NE - CZ - NH2 ANGL. DEV. = -5.0 DEGREES REMARK 500 13 ARG A 159 NE - CZ - NH1 ANGL. DEV. = 4.0 DEGREES REMARK 500 13 GLU A 209 OE1 - CD - OE2 ANGL. DEV. = -7.3 DEGREES REMARK 500 14 ARG A 186 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 14 TYR A 245 CB - CG - CD1 ANGL. DEV. = -3.7 DEGREES REMARK 500 15 ARG A 159 NE - CZ - NH1 ANGL. DEV. = 3.0 DEGREES REMARK 500 16 ASP A 202 CB - CG - OD1 ANGL. DEV. = 6.0 DEGREES REMARK 500 19 ARG A 125 NE - CZ - NH1 ANGL. DEV. = 3.0 DEGREES REMARK 500 19 ARG A 159 NE - CZ - NH1 ANGL. DEV. = 3.9 DEGREES REMARK 500 19 GLU A 209 OE1 - CD - OE2 ANGL. DEV. = -8.3 DEGREES REMARK 500 20 ARG A 186 NE - CZ - NH1 ANGL. DEV. = 4.6 DEGREES REMARK 500 20 ASP A 206 CB - CG - OD1 ANGL. DEV. = 5.4 DEGREES 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 1 LYS A 116 -171.77 -66.43 REMARK 500 1 SER A 162 87.18 -155.54 REMARK 500 1 GLU A 164 109.27 -56.43 REMARK 500 1 HIS A 176 26.51 -152.78 REMARK 500 1 SER A 179 -6.79 -57.71 REMARK 500 1 GLU A 197 -67.09 -141.70 REMARK 500 1 THR A 212 -169.33 -170.71 REMARK 500 1 ASN A 216 -71.43 -59.53 REMARK 500 1 HIS A 236 106.93 -56.96 REMARK 500 1 TYR A 245 118.83 -39.54 REMARK 500 1 THR A 247 9.16 -170.80 REMARK 500 1 HIS A 257 -115.22 26.66 REMARK 500 1 LYS A 260 -69.41 -175.32 REMARK 500 2 PRO A 154 77.79 -69.37 REMARK 500 2 ASN A 161 -13.45 61.69 REMARK 500 2 ASP A 175 51.11 -67.90 REMARK 500 2 ASP A 178 159.14 157.48 REMARK 500 2 TYR A 180 56.47 -159.87 REMARK 500 2 ARG A 186 178.66 156.32 REMARK 500 2 GLU A 197 -91.89 -106.17 REMARK 500 2 ALA A 208 3.96 -69.78 REMARK 500 2 THR A 215 -17.57 -49.18 REMARK 500 2 HIS A 236 97.50 -65.19 REMARK 500 2 THR A 238 28.75 -76.44 REMARK 500 2 SER A 241 69.23 -151.65 REMARK 500 2 TYR A 245 128.81 -38.38 REMARK 500 2 TYR A 254 42.69 -142.48 REMARK 500 2 HIS A 257 -143.26 48.01 REMARK 500 2 LYS A 260 -82.57 -173.55 REMARK 500 3 GLU A 114 83.77 72.37 REMARK 500 3 TYR A 129 -167.16 -116.98 REMARK 500 3 PRO A 154 20.15 -65.46 REMARK 500 3 ASN A 161 -41.19 68.40 REMARK 500 3 ASN A 173 -159.29 -119.76 REMARK 500 3 ASP A 175 125.46 77.88 REMARK 500 3 HIS A 176 15.45 -163.92 REMARK 500 3 SER A 179 24.78 -70.02 REMARK 500 3 ARG A 186 175.19 69.09 REMARK 500 3 GLU A 197 -109.27 -97.73 REMARK 500 3 ASP A 206 99.35 -65.44 REMARK 500 3 THR A 215 75.13 59.70 REMARK 500 3 ASN A 216 -67.92 -172.83 REMARK 500 3 HIS A 236 92.97 -67.54 REMARK 500 3 SER A 237 93.23 -69.12 REMARK 500 3 THR A 238 44.04 -75.40 REMARK 500 3 SER A 241 52.77 -149.59 REMARK 500 3 TYR A 254 32.53 -143.96 REMARK 500 3 HIS A 257 -113.26 33.43 REMARK 500 3 LYS A 260 -74.59 -176.32 REMARK 500 4 SER A 150 0.81 -66.21 REMARK 500 REMARK 500 THIS ENTRY HAS 290 RAMACHANDRAN OUTLIERS. 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 1 TYR A 124 0.06 SIDE CHAIN REMARK 500 1 HIS A 226 0.10 SIDE CHAIN REMARK 500 1 TYR A 250 0.07 SIDE CHAIN REMARK 500 2 TYR A 124 0.07 SIDE CHAIN REMARK 500 2 PHE A 157 0.10 SIDE CHAIN REMARK 500 5 GLU A 209 0.09 SIDE CHAIN REMARK 500 5 HIS A 226 0.13 SIDE CHAIN REMARK 500 6 HIS A 191 0.10 SIDE CHAIN REMARK 500 6 HIS A 226 0.10 SIDE CHAIN REMARK 500 7 TYR A 250 0.08 SIDE CHAIN REMARK 500 8 HIS A 176 0.14 SIDE CHAIN REMARK 500 8 HIS A 226 0.13 SIDE CHAIN REMARK 500 8 HIS A 230 0.10 SIDE CHAIN REMARK 500 10 HIS A 230 0.10 SIDE CHAIN REMARK 500 12 HIS A 226 0.11 SIDE CHAIN REMARK 500 12 HIS A 230 0.14 SIDE CHAIN REMARK 500 12 TYR A 248 0.07 SIDE CHAIN REMARK 500 13 PHE A 157 0.08 SIDE CHAIN REMARK 500 13 ARG A 186 0.08 SIDE CHAIN REMARK 500 13 HIS A 226 0.10 SIDE CHAIN REMARK 500 13 HIS A 230 0.11 SIDE CHAIN REMARK 500 17 PHE A 157 0.10 SIDE CHAIN REMARK 500 17 HIS A 191 0.09 SIDE CHAIN REMARK 500 17 HIS A 226 0.10 SIDE CHAIN REMARK 500 17 TYR A 248 0.07 SIDE CHAIN REMARK 500 18 HIS A 226 0.11 SIDE CHAIN REMARK 500 18 HIS A 230 0.13 SIDE CHAIN REMARK 500 19 ARG A 159 0.10 SIDE CHAIN REMARK 500 20 HIS A 191 0.12 SIDE CHAIN REMARK 500 20 HIS A 226 0.13 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 273 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 274 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 275 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 276 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NGH A 277 DBREF 2JSD A 113 272 UNP O60882 MMP20_HUMAN 113 272 SEQRES 1 A 160 GLY GLU PRO LYS TRP LYS LYS ASN THR LEU THR TYR ARG SEQRES 2 A 160 ILE SER LYS TYR THR PRO SER MET SER SER VAL GLU VAL SEQRES 3 A 160 ASP LYS ALA VAL GLU MET ALA LEU GLN ALA TRP SER SER SEQRES 4 A 160 ALA VAL PRO LEU SER PHE VAL ARG ILE ASN SER GLY GLU SEQRES 5 A 160 ALA ASP ILE MET ILE SER PHE GLU ASN GLY ASP HIS GLY SEQRES 6 A 160 ASP SER TYR PRO PHE ASP GLY PRO ARG GLY THR LEU ALA SEQRES 7 A 160 HIS ALA PHE ALA PRO GLY GLU GLY LEU GLY GLY ASP THR SEQRES 8 A 160 HIS PHE ASP ASN ALA GLU LYS TRP THR MET GLY THR ASN SEQRES 9 A 160 GLY PHE ASN LEU PHE THR VAL ALA ALA HIS GLU PHE GLY SEQRES 10 A 160 HIS ALA LEU GLY LEU ALA HIS SER THR ASP PRO SER ALA SEQRES 11 A 160 LEU MET TYR PRO THR TYR LYS TYR LYS ASN PRO TYR GLY SEQRES 12 A 160 PHE HIS LEU PRO LYS ASP ASP VAL LYS GLY ILE GLN ALA SEQRES 13 A 160 LEU TYR GLY PRO HET CA A 273 1 HET CA A 274 1 HET ZN A 275 1 HET ZN A 276 1 HET NGH A 277 40 HETNAM CA CALCIUM ION HETNAM ZN ZINC ION HETNAM NGH N-ISOBUTYL-N-[4-METHOXYPHENYLSULFONYL]GLYCYL HYDROXAMIC HETNAM 2 NGH ACID FORMUL 2 CA 2(CA 2+) FORMUL 4 ZN 2(ZN 2+) FORMUL 6 NGH C13 H20 N2 O5 S HELIX 1 1 SER A 134 VAL A 153 1 20 HELIX 2 2 LEU A 220 GLY A 233 1 14 HELIX 3 3 LYS A 260 GLY A 271 1 12 SHEET 1 A 5 SER A 156 ARG A 159 0 SHEET 2 A 5 THR A 121 ILE A 126 1 N LEU A 122 O VAL A 158 SHEET 3 A 5 ILE A 167 GLU A 172 1 O ILE A 167 N THR A 123 SHEET 4 A 5 THR A 203 ASP A 206 1 O PHE A 205 N SER A 170 SHEET 5 A 5 ALA A 190 ALA A 192 -1 N HIS A 191 O HIS A 204 SHEET 1 B 2 TRP A 211 THR A 212 0 SHEET 2 B 2 PHE A 218 ASN A 219 1 O PHE A 218 N THR A 212 SITE 1 AC1 6 ASP A 183 GLY A 184 ARG A 186 THR A 188 SITE 2 AC1 6 ASP A 206 GLU A 209 SITE 1 AC2 7 GLU A 164 ALA A 165 ASP A 166 GLU A 197 SITE 2 AC2 7 GLY A 198 GLY A 200 ASP A 202 SITE 1 AC3 4 HIS A 176 ASP A 178 HIS A 191 HIS A 204 SITE 1 AC4 4 HIS A 226 HIS A 230 HIS A 236 NGH A 277 SITE 1 AC5 15 GLY A 187 THR A 188 LEU A 189 ALA A 190 SITE 2 AC5 15 THR A 222 HIS A 226 GLU A 227 HIS A 230 SITE 3 AC5 15 HIS A 236 TYR A 245 PRO A 246 THR A 247 SITE 4 AC5 15 TYR A 248 LYS A 249 ZN A 276 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 1 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 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000 MODEL 1