HEADER LYASE 30-MAY-00 1F2W TITLE THE MECHANISM OF CYANAMIDE HYDRATION CATALYZED BY CARBONIC ANHYDRASE TITLE 2 II REVEALED BY CRYOGENIC X-RAY DIFFRACTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: CARBONIC ANHYDRASE II; COMPND 3 CHAIN: A; COMPND 4 EC: 4.2.1.1; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PACA/HCAII KEYWDS PROTEIN-INHIBITOR COMPLEX, LYASE EXPDTA X-RAY DIFFRACTION AUTHOR A.GUERRI,F.BRIGANTI,A.SCOZZAFAVA,C.T.SUPURAN,S.MANGANI REVDAT 5 07-FEB-24 1F2W 1 REMARK LINK REVDAT 4 11-OCT-17 1F2W 1 REMARK REVDAT 3 24-FEB-09 1F2W 1 VERSN REVDAT 2 29-NOV-00 1F2W 1 JRNL REVDAT 1 08-JUN-00 1F2W 0 JRNL AUTH A.GUERRI,F.BRIGANTI,A.SCOZZAFAVA,C.T.SUPURAN,S.MANGANI JRNL TITL MECHANISM OF CYANAMIDE HYDRATION CATALYZED BY CARBONIC JRNL TITL 2 ANHYDRASE II SUGGESTED BY CRYOGENIC X-RAY DIFFRACTION. JRNL REF BIOCHEMISTRY V. 39 12391 2000 JRNL REFN ISSN 0006-2960 JRNL PMID 11015219 JRNL DOI 10.1021/BI000937C REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 18.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 17716 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING + TEST SET) : 0.165 REMARK 3 R VALUE (WORKING SET) : 0.166 REMARK 3 FREE R VALUE : 0.218 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 910 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2049 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 6 REMARK 3 SOLVENT ATOMS : 253 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 6.60 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 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): NULL REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.014 ; 0.020 REMARK 3 ANGLE DISTANCE (A) : 0.034 ; 0.040 REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : 0.069 ; 0.050 REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : 0.012 ; 0.020 REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : 0.133 ; 0.150 REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : 0.180 ; 0.300 REMARK 3 MULTIPLE TORSION (A) : 0.230 ; 0.300 REMARK 3 H-BOND (X...Y) (A) : 0.150 ; 0.300 REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : 9.900 ; 7.000 REMARK 3 STAGGERED (DEGREES) : 17.200; 15.000 REMARK 3 TRANSVERSE (DEGREES) : 28.500; 20.000 REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.640 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.240 ; 3.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.040 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.000 ; 3.000 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1F2W COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 31-MAY-00. REMARK 100 THE DEPOSITION ID IS D_1000011177. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 07-JAN-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.7 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 : MACSCIENCE M12X REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GOBEL MIRRORS REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : BRUKER SMART 1000 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : SAINT REMARK 200 DATA SCALING SOFTWARE : SAINT REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 17716 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 18.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.500 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.0 REMARK 200 DATA REDUNDANCY : 2.100 REMARK 200 R MERGE (I) : 0.05700 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 8.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.90 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.05 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : 2.00 REMARK 200 R MERGE FOR SHELL (I) : 0.09900 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.68 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.28 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULPHATE, 4 REMARK 280 -(HYDROXYMERCURY)BENZOATE, TRIS HCL , PH 7.7, VAPOR DIFFUSION, REMARK 280 HANGING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 20.87100 REMARK 290 SMTRY3 2 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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A MONOMER 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 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 SER A 2 REMARK 465 HIS A 3 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 ARG A 27 NE - CZ - NH2 ANGL. DEV. = 3.2 DEGREES REMARK 500 PRO A 30 CA - N - CD ANGL. DEV. = -9.4 DEGREES REMARK 500 PRO A 30 N - CD - CG ANGL. DEV. = 8.0 DEGREES REMARK 500 PHE A 66 CB - CG - CD2 ANGL. DEV. = -4.3 DEGREES REMARK 500 PHE A 66 CB - CG - CD1 ANGL. DEV. = 4.5 DEGREES REMARK 500 ASP A 162 CB - CG - OD1 ANGL. DEV. = 6.0 DEGREES REMARK 500 GLU A 239 OE1 - CD - OE2 ANGL. DEV. = -10.2 DEGREES REMARK 500 ARG A 246 NE - CZ - NH1 ANGL. DEV. = 4.1 DEGREES REMARK 500 ARG A 254 NH1 - CZ - NH2 ANGL. DEV. = 6.7 DEGREES REMARK 500 ARG A 254 NE - CZ - NH1 ANGL. DEV. = -4.3 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 ASN A 11 11.60 -142.70 REMARK 500 ARG A 27 52.59 -147.76 REMARK 500 PRO A 30 171.12 -53.31 REMARK 500 LYS A 76 -95.62 -98.90 REMARK 500 GLU A 106 -60.37 -93.01 REMARK 500 LYS A 111 -6.83 72.09 REMARK 500 PHE A 176 59.44 -147.70 REMARK 500 ASN A 244 53.02 -98.42 REMARK 500 LYS A 252 -137.74 53.90 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 SER A 29 PRO A 30 -33.77 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY REMARK 500 REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 500 I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI ANGLE REMARK 500 SER A 29 -16.76 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 HG A 265 HG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASN A 62 O REMARK 620 2 HIS A 64 ND1 94.4 REMARK 620 3 HOH A 328 O 113.6 111.8 REMARK 620 4 HOH A 503 O 145.1 94.0 94.4 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN A 262 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 94 NE2 REMARK 620 2 HIS A 96 NE2 100.7 REMARK 620 3 HIS A 119 ND1 122.2 103.7 REMARK 620 4 CNN A 264 N2 113.8 103.4 110.2 REMARK 620 N 1 2 3 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 262 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 265 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HGB A 263 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CNN A 264 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1BV3 RELATED DB: PDB REMARK 900 1BV3 CONTAINS THE SAME PROTEIN WITH UREA DBREF 1F2W A 2 261 UNP P00918 CAH2_HUMAN 1 259 SEQRES 1 A 259 SER HIS HIS TRP GLY TYR GLY LYS HIS ASN GLY PRO GLU SEQRES 2 A 259 HIS TRP HIS LYS ASP PHE PRO ILE ALA LYS GLY GLU ARG SEQRES 3 A 259 GLN SER PRO VAL ASP ILE ASP THR HIS THR ALA LYS TYR SEQRES 4 A 259 ASP PRO SER LEU LYS PRO LEU SER VAL SER TYR ASP GLN SEQRES 5 A 259 ALA THR SER LEU ARG ILE LEU ASN ASN GLY HIS ALA PHE SEQRES 6 A 259 ASN VAL GLU PHE ASP ASP SER GLN ASP LYS ALA VAL LEU SEQRES 7 A 259 LYS GLY GLY PRO LEU ASP GLY THR TYR ARG LEU ILE GLN SEQRES 8 A 259 PHE HIS PHE HIS TRP GLY SER LEU ASP GLY GLN GLY SER SEQRES 9 A 259 GLU HIS THR VAL ASP LYS LYS LYS TYR ALA ALA GLU LEU SEQRES 10 A 259 HIS LEU VAL HIS TRP ASN THR LYS TYR GLY ASP PHE GLY SEQRES 11 A 259 LYS ALA VAL GLN GLN PRO ASP GLY LEU ALA VAL LEU GLY SEQRES 12 A 259 ILE PHE LEU LYS VAL GLY SER ALA LYS PRO GLY LEU GLN SEQRES 13 A 259 LYS VAL VAL ASP VAL LEU ASP SER ILE LYS THR LYS GLY SEQRES 14 A 259 LYS SER ALA ASP PHE THR ASN PHE ASP PRO ARG GLY LEU SEQRES 15 A 259 LEU PRO GLU SER LEU ASP TYR TRP THR TYR PRO GLY SER SEQRES 16 A 259 LEU THR THR PRO PRO LEU LEU GLU CYS VAL THR TRP ILE SEQRES 17 A 259 VAL LEU LYS GLU PRO ILE SER VAL SER SER GLU GLN VAL SEQRES 18 A 259 LEU LYS PHE ARG LYS LEU ASN PHE ASN GLY GLU GLY GLU SEQRES 19 A 259 PRO GLU GLU LEU MET VAL ASP ASN TRP ARG PRO ALA GLN SEQRES 20 A 259 PRO LEU LYS ASN ARG GLN ILE LYS ALA SER PHE LYS HET ZN A 262 1 HET HG A 265 1 HET HGB A 263 1 HET CNN A 264 3 HETNAM ZN ZINC ION HETNAM HG MERCURY (II) ION HETNAM HGB 4-(HYDROXYMERCURY)BENZOIC ACID HETNAM CNN CYANAMIDE FORMUL 2 ZN ZN 2+ FORMUL 3 HG HG 2+ FORMUL 4 HGB C7 H6 HG O3 FORMUL 5 CNN C H2 N2 FORMUL 6 HOH *253(H2 O) HELIX 1 1 PHE A 20 GLY A 25 5 6 HELIX 2 2 LYS A 127 GLY A 129 5 3 HELIX 3 3 ASP A 130 VAL A 135 1 6 HELIX 4 4 LYS A 154 GLY A 156 5 3 HELIX 5 5 LEU A 157 LEU A 164 1 8 HELIX 6 6 ASP A 165 LYS A 168 5 4 HELIX 7 7 ASP A 180 LEU A 185 5 6 HELIX 8 8 SER A 219 ARG A 227 1 9 SHEET 1 A 2 ASP A 32 ILE A 33 0 SHEET 2 A 2 THR A 108 VAL A 109 1 O THR A 108 N ILE A 33 SHEET 1 B16 LYS A 39 TYR A 40 0 SHEET 2 B16 LYS A 257 ALA A 258 1 N ALA A 258 O LYS A 39 SHEET 3 B16 TYR A 191 GLY A 196 -1 N THR A 193 O LYS A 257 SHEET 4 B16 VAL A 207 LEU A 212 -1 O VAL A 207 N GLY A 196 SHEET 5 B16 LEU A 141 VAL A 150 1 O LEU A 141 N THR A 208 SHEET 6 B16 ILE A 216 VAL A 218 1 N ILE A 216 O PHE A 147 SHEET 7 B16 LEU A 141 VAL A 150 1 O PHE A 147 N ILE A 216 SHEET 8 B16 ALA A 116 ASN A 124 -1 O ALA A 116 N LEU A 148 SHEET 9 B16 TYR A 88 TRP A 97 -1 N ARG A 89 O TRP A 123 SHEET 10 B16 VAL A 78 GLY A 81 -1 N LEU A 79 O TYR A 88 SHEET 11 B16 LEU A 47 SER A 50 -1 N SER A 48 O LYS A 80 SHEET 12 B16 VAL A 78 GLY A 81 -1 O VAL A 78 N SER A 50 SHEET 13 B16 TYR A 88 TRP A 97 -1 O TYR A 88 N LEU A 79 SHEET 14 B16 PHE A 66 PHE A 70 -1 N VAL A 68 O PHE A 93 SHEET 15 B16 SER A 56 ASN A 61 -1 N LEU A 57 O GLU A 69 SHEET 16 B16 SER A 173 ASP A 175 -1 O ALA A 174 N ILE A 59 LINK O ASN A 62 HG HG A 265 1555 1555 2.87 LINK ND1 HIS A 64 HG HG A 265 1555 1555 2.47 LINK NE2 HIS A 94 ZN ZN A 262 1555 1555 2.00 LINK NE2 HIS A 96 ZN ZN A 262 1555 1555 2.15 LINK ND1 HIS A 119 ZN ZN A 262 1555 1555 2.01 LINK ZN ZN A 262 N2 CNN A 264 1555 1555 2.09 LINK HG HGB A 263 O HOH A 298 1555 1555 2.27 LINK HG HG A 265 O HOH A 328 1555 1555 2.81 LINK HG HG A 265 O HOH A 503 1555 1555 2.61 CISPEP 1 PRO A 201 PRO A 202 0 13.69 SITE 1 AC1 5 HIS A 94 HIS A 96 HIS A 119 CNN A 264 SITE 2 AC1 5 HOH A 316 SITE 1 AC2 4 ASN A 62 HIS A 64 HOH A 328 HOH A 503 SITE 1 AC3 5 GLN A 137 GLU A 205 CYS A 206 HOH A 298 SITE 2 AC3 5 HOH A 497 SITE 1 AC4 8 HIS A 94 HIS A 96 HIS A 119 THR A 199 SITE 2 AC4 8 THR A 200 ZN A 262 HOH A 316 HOH A 500 CRYST1 42.158 41.742 72.307 90.00 104.42 90.00 P 1 21 1 2 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 0.023720 0.000000 0.006100 0.00000 SCALE2 0.000000 0.023960 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014280 0.00000