1G0E - Header Asymmetric Unit

HEADER LYASE 06-OCT-00 1G0E

TITLE SITE-SPECIFIC MUTANT (HIS64 REPLACED WITH ALA) OF HUMAN TITLE 2 CARBONIC ANHYDRASE II COMPLEXED WITH 4-METHYLIMIDAZOLE

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; COMPND 6 MUTATION: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 TISSUE: BLOOD; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET

KEYWDS TWISTED BETA SHEET, CHEMICAL RESCUE, 4-METHYLIMIDAZOLE, KEYWDS 2 ZINC METALLOENZYME,PROTEIN LIGAND COMPLEX, LYASE

EXPDTA X-RAY DIFFRACTION

AUTHOR D.DUDA,R.MCKENNA

REVDAT 4 24-FEB-09 1G0E 1 VERSN REVDAT 3 17-AUG-01 1G0E 1 DBREF REVDAT 2 16-MAY-01 1G0E 1 JRNL REVDAT 1 18-OCT-00 1G0E 0

JRNL AUTH D.DUDA,C.TU,M.QIAN,P.LAIPIS,M.AGBANDJE-MCKENNA, JRNL AUTH 2 D.N.SILVERMAN,R.MCKENNA JRNL TITL STRUCTURAL AND KINETIC ANALYSIS OF THE CHEMICAL JRNL TITL 2 RESCUE OF THE PROTON TRANSFER FUNCTION OF CARBONIC JRNL TITL 3 ANHYDRASE II. JRNL REF BIOCHEMISTRY V. 40 1741 2001 JRNL REFN ISSN 0006-2960 JRNL PMID 11327835 JRNL DOI 10.1021/BI002295Z

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH K.HAKANSSON,M.CARLSSON,L.A.SVENSSON,A.LILJAS REMARK 1 TITL STRUCTURE OF NATIVE AND APO CARBONIC ANHYDRASE II REMARK 1 TITL 2 AND STRUCTURE OF SOME OF ITS ANION-LIGAND REMARK 1 TITL 3 COMPLEXES. REMARK 1 REF J.MOL.BIOL. V. 227 1192 1992 REMARK 1 REFN ISSN 0022-2836

REMARK 2 REMARK 2 RESOLUTION. 1.60 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES, PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : BRUNGER & ADAMS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 25.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 1.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 918664.210 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 88.8 REMARK 3 NUMBER OF REFLECTIONS : 28406 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.179 REMARK 3 FREE R VALUE : 0.200 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.900 REMARK 3 FREE R VALUE TEST SET COUNT : 1379 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.005 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.60 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.70 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 68.50 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 3455 REMARK 3 BIN R VALUE (WORKING SET) : 0.1880 REMARK 3 BIN FREE R VALUE : 0.2070 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 4.40 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 159 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.016 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2054 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 8 REMARK 3 SOLVENT ATOMS : 318 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 9.90 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 11.20 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.07000 REMARK 3 B22 (A**2) : 0.33000 REMARK 3 B33 (A**2) : -0.39000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.18000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.16 REMARK 3 ESD FROM SIGMAA (A) : 0.04 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.18 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.08 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.40 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 24.50 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.78 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.39 REMARK 3 BSOL : 47.68 REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : ION.PARAM REMARK 3 PARAMETER FILE 3 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 4 : 4MI.PARAM REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : 4MI.TOP REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 1G0E COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-OCT-00. REMARK 100 THE RCSB ID CODE IS RCSB012076.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 28-MAR-00 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 7.8 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 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : R-AXIS REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 28456 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.600 REMARK 200 RESOLUTION RANGE LOW (A) : 25.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 88.8 REMARK 200 DATA REDUNDANCY : 16.460 REMARK 200 R MERGE (I) : 0.04700 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 15.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 25.00 REMARK 200 COMPLETENESS FOR SHELL (%) : 88.8 REMARK 200 DATA REDUNDANCY IN SHELL : 16.46 REMARK 200 R MERGE FOR SHELL (I) : 0.04700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 41.09 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.09 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, MERCURY CHLORIDE, REMARK 280 TRIS HCL, PH 7.8, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE REMARK 280 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 20.74500 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 CONSTRUCTED FROM REMARK 300 CHAIN A

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 MET A 1 REMARK 465 SER A 2

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 ARG A 27 57.07 -143.40 REMARK 500 ALA A 65 -170.71 -170.94 REMARK 500 LYS A 76 -89.32 -112.67 REMARK 500 LYS A 111 -2.43 74.00 REMARK 500 ASN A 244 46.73 -94.33 REMARK 500 LYS A 252 -139.53 53.32 REMARK 500 REMARK 500 REMARK: NULL

REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 372 DISTANCE = 5.91 ANGSTROMS REMARK 525 HOH A 567 DISTANCE = 6.60 ANGSTROMS

REMARK 600 REMARK 600 HETEROGEN REMARK 600 THE LIGAND 4MZ IS CALLED 4MI IN THE PUBLICATION.

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 262 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 94 NE2 REMARK 620 2 HIS A 96 NE2 103.8 REMARK 620 3 HIS A 119 ND1 113.8 100.6 REMARK 620 4 HOH A 574 O 106.8 115.8 115.7 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HG A 263 HG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 206 SG REMARK 620 2 VAL A 135 O 67.2 REMARK 620 3 GLU A 205 O 88.5 152.3 REMARK 620 4 HOH A 271 O 179.5 112.9 91.6 REMARK 620 5 HOH A 374 O 98.5 48.2 128.6 81.9 REMARK 620 6 HOH A 375 O 94.4 93.5 74.6 86.0 54.2 REMARK 620 7 GLN A 137 O 93.5 102.4 91.7 86.0 137.9 164.0 REMARK 620 N 1 2 3 4 5 6

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: ZN REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: CATALYTIC SITE REMARK 800 SITE_IDENTIFIER: HG REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: NONE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 262 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 263 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 4MZ A 264

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1G0F RELATED DB: PDB REMARK 900 HUMAN CARBONIC ANHYDRASE II WITHOUT 4-METHYLIMIDAZOLE

REMARK 999 REMARK 999 SEQUENCE REMARK 999 RESIDUES 125 AND 127 ARE COVALENTLY BOUND.

DBREF 1G0E A 1 261 UNP P00918 CAH2_HUMAN 1 260

SEQADV 1G0E ALA A 64 UNP P00918 HIS 63 ENGINEERED

SEQRES 1 A 260 MET SER HIS HIS TRP GLY TYR GLY LYS HIS ASN GLY PRO SEQRES 2 A 260 GLU HIS TRP HIS LYS ASP PHE PRO ILE ALA LYS GLY GLU SEQRES 3 A 260 ARG GLN SER PRO VAL ASP ILE ASP THR HIS THR ALA LYS SEQRES 4 A 260 TYR ASP PRO SER LEU LYS PRO LEU SER VAL SER TYR ASP SEQRES 5 A 260 GLN ALA THR SER LEU ARG ILE LEU ASN ASN GLY ALA ALA SEQRES 6 A 260 PHE ASN VAL GLU PHE ASP ASP SER GLN ASP LYS ALA VAL SEQRES 7 A 260 LEU LYS GLY GLY PRO LEU ASP GLY THR TYR ARG LEU ILE SEQRES 8 A 260 GLN PHE HIS PHE HIS TRP GLY SER LEU ASP GLY GLN GLY SEQRES 9 A 260 SER GLU HIS THR VAL ASP LYS LYS LYS TYR ALA ALA GLU SEQRES 10 A 260 LEU HIS LEU VAL HIS TRP ASN THR LYS TYR GLY ASP PHE SEQRES 11 A 260 GLY LYS ALA VAL GLN GLN PRO ASP GLY LEU ALA VAL LEU SEQRES 12 A 260 GLY ILE PHE LEU LYS VAL GLY SER ALA LYS PRO GLY LEU SEQRES 13 A 260 GLN LYS VAL VAL ASP VAL LEU ASP SER ILE LYS THR LYS SEQRES 14 A 260 GLY LYS SER ALA ASP PHE THR ASN PHE ASP PRO ARG GLY SEQRES 15 A 260 LEU LEU PRO GLU SER LEU ASP TYR TRP THR TYR PRO GLY SEQRES 16 A 260 SER LEU THR THR PRO PRO LEU LEU GLU CYS VAL THR TRP SEQRES 17 A 260 ILE VAL LEU LYS GLU PRO ILE SER VAL SER SER GLU GLN SEQRES 18 A 260 VAL LEU LYS PHE ARG LYS LEU ASN PHE ASN GLY GLU GLY SEQRES 19 A 260 GLU PRO GLU GLU LEU MET VAL ASP ASN TRP ARG PRO ALA SEQRES 20 A 260 GLN PRO LEU LYS ASN ARG GLN ILE LYS ALA SER PHE LYS

HET ZN A 262 1 HET HG A 263 1 HET 4MZ A 264 6

HETNAM ZN ZINC ION HETNAM HG MERCURY (II) ION HETNAM 4MZ 4-METHYLIMIDAZOLE

FORMUL 2 ZN ZN 2+ FORMUL 3 HG HG 2+ FORMUL 4 4MZ C4 H6 N2 FORMUL 5 HOH *318(H2 O)

HELIX 1 A PRO A 13 LYS A 18 5 6 HELIX 2 B PRO A 21 LYS A 24 5 4 HELIX 3 C THR A 125 TYR A 128 5 3 HELIX 4 D PHE A 131 ALA A 134 1 4 HELIX 5 E1 PRO A 155 LEU A 157 5 3 HELIX 6 E2 GLN A 158 VAL A 163 1 6 HELIX 7 E3 LEU A 164 ILE A 167 5 4 HELIX 8 F PRO A 181 LEU A 184 5 4 HELIX 9 G SER A 220 PHE A 226 1 7

SHEET 1 B1A10 LYS A 39 TYR A 40 0 SHEET 2 B1A10 LYS A 257 ALA A 258 1 N ALA A 258 O LYS A 39 SHEET 3 B1A10 TYR A 191 GLY A 196 -1 N THR A 193 O LYS A 257 SHEET 4 B1A10 VAL A 207 LEU A 212 -1 N VAL A 211 O TRP A 192 SHEET 5 B1A10 LEU A 141 GLY A 151 1 O VAL A 143 N ILE A 210 SHEET 6 B1A10 ALA A 116 ASN A 124 -1 N LEU A 120 O LEU A 144 SHEET 7 B1A10 TYR A 88 TRP A 97 -1 O HIS A 94 N HIS A 119 SHEET 8 B1A10 PHE A 66 PHE A 70 -1 N VAL A 68 O PHE A 93 SHEET 9 B1A10 SER A 56 ASN A 61 -1 O ARG A 58 N GLU A 69 SHEET 10 B1A10 SER A 173 ASP A 175 -1 O SER A 173 N ILE A 59

LINK NE2 HIS A 94 ZN ZN A 262 1555 1555 2.13 LINK NE2 HIS A 96 ZN ZN A 262 1555 1555 2.03 LINK ND1 HIS A 119 ZN ZN A 262 1555 1555 2.09 LINK ZN ZN A 262 O HOH A 574 1555 1555 1.81 LINK HG HG A 263 SG CYS A 206 1555 1555 2.28 LINK HG HG A 263 O VAL A 135 1555 1555 3.31 LINK HG HG A 263 O GLU A 205 1555 1555 3.19 LINK HG HG A 263 O HOH A 271 1555 1555 2.44 LINK HG HG A 263 O HOH A 374 1555 1555 3.52 LINK HG HG A 263 O HOH A 375 1555 1555 3.45 LINK HG HG A 263 O GLN A 137 1555 1555 2.85

CISPEP 1 SER A 29 PRO A 30 0 -0.12 CISPEP 2 PRO A 201 PRO A 202 0 0.54

SITE 1 ZN 3 HIS A 94 HIS A 96 HIS A 119 SITE 1 HG 1 CYS A 206 SITE 1 AC1 5 HIS A 94 HIS A 96 HIS A 119 THR A 199 SITE 2 AC1 5 HOH A 574 SITE 1 AC2 5 VAL A 135 GLN A 137 GLU A 205 CYS A 206 SITE 2 AC2 5 HOH A 271 SITE 1 AC3 4 TRP A 5 ASN A 62 GLY A 63 LYS A 170

CRYST1 42.142 41.490 72.063 90.00 104.28 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 0.023729 0.000000 0.006038 0.00000

SCALE2 0.000000 0.024102 0.000000 0.00000

SCALE3 0.000000 0.000000 0.014319 0.00000