1MH2 - Header Asymmetric Unit

HEADER HYDROLASE 19-AUG-02 1MH2

TITLE CRYSTAL STRUCTURE OF A ZINC CONTAINING DIMER OF TITLE 2 PHOSPHOLIPASE A2 FROM THE VENOM OF INDIAN COBRA (NAJA NAJA TITLE 3 SAGITTIFERA)

COMPND MOL_ID: 1; COMPND 2 MOLECULE: PHOSPHOLIPASE A2; COMPND 3 CHAIN: A; COMPND 4 EC: 3.1.1.4; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: PHOSPHOLIPASE A2; COMPND 7 CHAIN: B; COMPND 8 EC: 3.1.1.4

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: NAJA SAGITTIFERA; SOURCE 3 ORGANISM_TAXID: 195058; SOURCE 4 SECRETION: VENOM; SOURCE 5 MOL_ID: 2; SOURCE 6 ORGANISM_SCIENTIFIC: NAJA SAGITTIFERA; SOURCE 7 ORGANISM_TAXID: 195058; SOURCE 8 SECRETION: VENOM

KEYWDS PHOSPHOLIPASE A2, ENZYME, PHOSPHOLIPIDS, COMPLEX, HYDROLASE

EXPDTA X-RAY DIFFRACTION

AUTHOR T.JABEEN,A.K.VARMA,M.PARAMASIVAM,N.SINGH,R.K.SINGH,S.SHARMA, AUTHOR 2 A.SRINIVASAN,T.P.SINGH

REVDAT 2 24-FEB-09 1MH2 1 VERSN REVDAT 1 20-MAY-03 1MH2 0

JRNL AUTH T.JABEEN,A.K.VARMA,M.PARAMASIVAM,N.SINGH,R.K.SINGH, JRNL AUTH 2 S.SHARMA,A.SRINIVASAN,T.P.SINGH JRNL TITL CRYSTAL STRUCTURE OF A ZINC CONTAINING DIMER OF JRNL TITL 2 PHOSPHOLIPASE A2 FROM THE VENOM OF INDIAN COBRA JRNL TITL 3 (NAJA NAJA SAGGITTIFERA) JRNL REF TO BE PUBLISHED JRNL REFN

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. 2.70 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 0.9 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 : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.51 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1145134.070 REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 99.0 REMARK 3 NUMBER OF REFLECTIONS : 6819 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) : 0.196 REMARK 3 FREE R VALUE : 0.216 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.500 REMARK 3 FREE R VALUE TEST SET COUNT : 374 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.011 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) : 2.70 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.87 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.00 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1083 REMARK 3 BIN R VALUE (WORKING SET) : 0.2820 REMARK 3 BIN FREE R VALUE : 0.2930 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.20 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 59 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.038 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1816 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 192 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 26.00 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 37.70 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.88000 REMARK 3 B22 (A**2) : -1.88000 REMARK 3 B33 (A**2) : 3.75000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.29 REMARK 3 ESD FROM SIGMAA (A) : 0.40 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) : 0.34 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.38 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.009 REMARK 3 BOND ANGLES (DEGREES) : 1.30 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.70 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.77 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) : 1.440 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.400 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.270 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.380 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.25 REMARK 3 BSOL : 31.43 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 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : ION.PARAM REMARK 3 PARAMETER FILE 4 : ACY.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 : ACY.TOP REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: USED WEIGHTED FULL MATRIX LEAST REMARK 3 SQUARES PROCEDURE

REMARK 4 REMARK 4 1MH2 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 29-AUG-02. REMARK 100 THE RCSB ID CODE IS RCSB016904.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 20-MAY-02 REMARK 200 TEMPERATURE (KELVIN) : 298 REMARK 200 PH : 6.5 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 RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : YALE MIRRORS REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 6887 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.700 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.6 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.11000 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 15.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.70 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.80 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.20000 REMARK 200 <I/SIGMA(I)> FOR SHELL : 1.200 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: 1LFJ REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 48.48 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.39 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 10 MM SODIUM CACODYLATE, 2MM ZINC REMARK 280 ACETATE , 30% ETHANOL, PH 6.5, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 293K

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y,X,Z+1/4 REMARK 290 4555 Y,-X,Z+3/4 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 29.21350 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 14.60675 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 43.82025 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 2090 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 11430 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -34.0 KCAL/MOL 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 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 314 O HOH A 315 0.00 REMARK 500 O HOH A 314 O HOH A 316 0.00 REMARK 500 O HOH A 315 O HOH A 316 0.00 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 VAL A 13 57.80 -141.77 REMARK 500 ASP A 24 58.85 -152.77 REMARK 500 ALA A 82 56.38 -92.61 REMARK 500 CYS A 119 -71.61 -94.41 REMARK 500 ARG B 31 -91.47 -154.85 REMARK 500 SER B 34 141.36 -178.40 REMARK 500 PRO B 37 -33.08 -36.16 REMARK 500 SER B 38 -12.47 68.29 REMARK 500 ASN B 84 -165.39 -101.82 REMARK 500 ALA B 117 52.37 -108.23 REMARK 500 ARG B 118 -27.98 -171.45 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 317 DISTANCE = 6.41 ANGSTROMS REMARK 525 HOH A 321 DISTANCE = 5.96 ANGSTROMS REMARK 525 HOH A 324 DISTANCE = 5.59 ANGSTROMS REMARK 525 HOH A 340 DISTANCE = 7.57 ANGSTROMS REMARK 525 HOH A 342 DISTANCE = 8.66 ANGSTROMS REMARK 525 HOH A 343 DISTANCE = 9.03 ANGSTROMS REMARK 525 HOH B 166 DISTANCE = 6.24 ANGSTROMS REMARK 525 HOH A 350 DISTANCE = 10.03 ANGSTROMS REMARK 525 HOH A 351 DISTANCE = 7.12 ANGSTROMS REMARK 525 HOH A 356 DISTANCE = 8.72 ANGSTROMS REMARK 525 HOH B 174 DISTANCE = 5.04 ANGSTROMS REMARK 525 HOH A 371 DISTANCE = 5.93 ANGSTROMS

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 ASP B 24 OD2 REMARK 620 2 ASN A 112 OD1 142.3 REMARK 620 3 ASP A 24 OD2 123.3 92.1 REMARK 620 4 HOH A 303 O 107.6 74.3 64.1 REMARK 620 5 HOH B 160 O 72.8 113.0 105.4 168.1 REMARK 620 N 1 2 3 4

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 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACY A 302

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1LFJ RELATED DB: PDB REMARK 900 1LFJ IS THE X-RAY CRYSTAL STRUCTURE OF A COMPLEX FORMED REMARK 900 BETWEEN TWO HOMOLOGOUS ISOFORMS OF PHOSPHOLIPASE A2 FROM REMARK 900 NAJA NAJA SAGITTIFERA : PRINCIPLE OF MOLECULAR ASSOCIATION REMARK 900 AND INACTIVATION REMARK 900 RELATED ID: 1LFF RELATED DB: PDB REMARK 900 1LFF IS THE CRYSTAL STRUCTURE OF AN ACIDIC PHOSPHOLIPASE A2 REMARK 900 FROM NAJA NAJA SAGITTIFERA AT 1.5 RESOLUTION REMARK 900 RELATED ID: 1LN8 RELATED DB: PDB REMARK 900 1LN8 IS THE CRYSTAL STRUCTURE OF A NEW ISOFORM OF REMARK 900 PHOSPHOLIPASE A2 FROM NAJA NAJA SAGITTIFERA AT 1.6 REMARK 900 RESOLUTION REMARK 900 RELATED ID: 1MF4 RELATED DB: PDB REMARK 900 1MF4 IS THE STRUCTURE BASED DESIGN OF POTENT AND SELECTIVE REMARK 900 INHIBITORS OF PHOSPHOLIPASE A2 FROM NAJA NAJA SAGITTIFERA REMARK 900 AND A DESIGNED PEPTIDE INHIBITOR AT 1.9 A RESOLUTION

DBREF 1MH2 A 1 120 UNP P60043 PA21B_NAJSG 8 126 DBREF 1MH2 B 1 120 UNP P60044 PA22_NAJSG 8 126

SEQRES 1 A 119 ASN THR TYR GLN PHE GLN ASN MET ILE GLN CYS THR VAL SEQRES 2 A 119 PRO LYS ARG SER TRP ARG ASP PHE ALA ASP TYR GLY CYS SEQRES 3 A 119 TYR CYS GLY ARG GLY GLY SER GLY THR PRO ILE ASP ASP SEQRES 4 A 119 LEU ASP SER CYS CYS GLN VAL HIS ASP ASN CYS TYR ASN SEQRES 5 A 119 SER ALA ARG GLU GLN GLY GLY CYS ARG PRO LYS GLN LYS SEQRES 6 A 119 THR TYR THR TYR GLN CYS LYS ALA GLY GLY LEU SER CYS SEQRES 7 A 119 SER GLY ALA ASN ASN SER CYS ALA ALA THR THR CYS ASP SEQRES 8 A 119 CYS ASP ARG LEU ALA ALA ILE CYS PHE ALA GLY ALA PRO SEQRES 9 A 119 TYR ASN ASP ASN ASN TYR ASN ILE ASP LEU LYS ALA ARG SEQRES 10 A 119 CYS GLN SEQRES 1 B 119 ASN THR TRP GLN PHE LYS ASN MET ILE SER CYS THR VAL SEQRES 2 B 119 PRO SER ARG SER TRP TRP ASP PHE ALA ASP TYR GLY CYS SEQRES 3 B 119 TYR CYS GLY ARG GLY GLY SER GLY THR PRO SER ASP ASP SEQRES 4 B 119 LEU ASP ARG CYS CYS GLN THR HIS ASP ASN CYS TYR ASN SEQRES 5 B 119 GLU ALA GLU LYS ILE SER GLY CYS ASN PRO ARG PHE ARG SEQRES 6 B 119 THR TYR SER TYR ALA CYS THR ALA GLY THR LEU THR CYS SEQRES 7 B 119 THR GLY ARG ASN ASN ALA CYS ALA ALA SER VAL CYS ASP SEQRES 8 B 119 CYS ASP ARG ASN ALA ALA ILE CYS PHE ALA GLY ALA PRO SEQRES 9 B 119 TYR ASN ASP SER ASN TYR ASN ILE ASP LEU GLN ALA ARG SEQRES 10 B 119 CYS ASN

HET ZN A 201 1 HET ACY A 301 4 HET ACY A 302 4

HETNAM ZN ZINC ION HETNAM ACY ACETIC ACID

FORMUL 3 ZN ZN 2+ FORMUL 4 ACY 2(C2 H4 O2) FORMUL 6 HOH *184(H2 O)

HELIX 1 1 ASN A 1 VAL A 13 1 13 HELIX 2 2 SER A 18 ALA A 23 5 6 HELIX 3 3 ASP A 39 ALA A 55 1 17 HELIX 4 4 ASN A 84 ALA A 104 1 21 HELIX 5 5 ASN A 107 TYR A 111 5 5 HELIX 6 6 ASP A 114 CYS A 119 1 6 HELIX 7 7 ASN B 1 VAL B 13 1 13 HELIX 8 8 TRP B 19 ASP B 24 1 6 HELIX 9 9 ASP B 39 GLU B 56 1 18 HELIX 10 10 ASN B 84 ALA B 104 1 21 HELIX 11 11 ASN B 107 TYR B 111 5 5 HELIX 12 12 ASP B 114 ARG B 118 5 5

SHEET 1 A 2 TYR A 70 LYS A 73 0 SHEET 2 A 2 GLY A 76 CYS A 79 -1 O GLY A 76 N LYS A 73 SHEET 1 B 2 TYR B 70 THR B 73 0 SHEET 2 B 2 THR B 76 CYS B 79 -1 O THR B 76 N THR B 73

SSBOND 1 CYS A 11 CYS A 72 1555 1555 2.02 SSBOND 2 CYS A 27 CYS A 119 1555 1555 2.03 SSBOND 3 CYS A 29 CYS A 45 1555 1555 2.03 SSBOND 4 CYS A 44 CYS A 100 1555 1555 2.03 SSBOND 5 CYS A 51 CYS A 93 1555 1555 2.03 SSBOND 6 CYS A 61 CYS A 86 1555 1555 2.03 SSBOND 7 CYS A 79 CYS A 91 1555 1555 2.03 SSBOND 8 CYS B 11 CYS B 72 1555 1555 2.02 SSBOND 9 CYS B 27 CYS B 119 1555 1555 2.03 SSBOND 10 CYS B 29 CYS B 45 1555 1555 2.03 SSBOND 11 CYS B 44 CYS B 100 1555 1555 2.03 SSBOND 12 CYS B 51 CYS B 93 1555 1555 2.03 SSBOND 13 CYS B 61 CYS B 86 1555 1555 2.03 SSBOND 14 CYS B 79 CYS B 91 1555 1555 2.04

LINK ZN ZN A 201 OD2 ASP B 24 1555 1555 2.12 LINK ZN ZN A 201 OD1 ASN A 112 1555 1555 2.30 LINK ZN ZN A 201 OD2 ASP A 24 1555 1555 2.17 LINK ZN ZN A 201 O HOH A 303 1555 1555 2.13 LINK ZN ZN A 201 O HOH B 160 1555 1555 2.26

SITE 1 AC1 6 ASP A 24 ASN A 112 HOH A 303 ASP B 24 SITE 2 AC1 6 ASN B 112 HOH B 160 SITE 1 AC2 4 HIS A 48 ASP A 49 LYS A 64 ARG B 31

CRYST1 65.467 65.467 58.427 90.00 90.00 90.00 P 41 4

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 0.015275 0.000000 0.000000 0.00000

SCALE2 0.000000 0.015275 0.000000 0.00000

SCALE3 0.000000 0.000000 0.017115 0.00000