1MKV - Header Asymmetric Unit

HEADER HYDROLASE 13-SEP-97 1MKV

TITLE CARBOXYLIC ESTER HYDROLASE COMPLEX (PLA2 + TRANSITION STATE TITLE 2 ANALOG COMPLEX)

COMPND MOL_ID: 1; COMPND 2 MOLECULE: PHOSPHOLIPASE A2; COMPND 3 CHAIN: A; COMPND 4 EC: 3.1.1.4; COMPND 5 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 3 ORGANISM_COMMON: CATTLE; SOURCE 4 ORGANISM_TAXID: 9913; SOURCE 5 CELL_LINE: BL21; SOURCE 6 ORGAN: PANCREAS; SOURCE 7 GENE: MATURE PLA2; SOURCE 8 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 9 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 10 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3) PLYSS; SOURCE 11 EXPRESSION_SYSTEM_PLASMID: PTO-A2MBL21; SOURCE 12 EXPRESSION_SYSTEM_GENE: MATURE PLA2

KEYWDS HYDROLASE, ENZYME, CARBOXYLIC ESTER HYDROLASE

EXPDTA X-RAY DIFFRACTION

AUTHOR M.SUNDARALINGAM

REVDAT 3 24-FEB-09 1MKV 1 VERSN REVDAT 2 01-APR-03 1MKV 1 JRNL REVDAT 1 18-MAR-98 1MKV 0

JRNL AUTH K.SEKAR,A.KUMAR,X.LIU,M.D.TSAI,M.H.GELB, JRNL AUTH 2 M.SUNDARALINGAM JRNL TITL STRUCTURE OF THE COMPLEX OF BOVINE PANCREATIC JRNL TITL 2 PHOSPHOLIPASE A2 WITH A TRANSITION-STATE ANALOGUE. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 54 334 1998 JRNL REFN ISSN 0907-4449 JRNL PMID 9761900 JRNL DOI 10.1107/S090744499701247X

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH K.SEKAR,C.SEKHARUDU,M.-D.TSAI,M.SUNDARALINGAM REMARK 1 TITL 1.72 ANGSTROM RESOLUTION REFINEMENT OF THE REMARK 1 TITL 2 TRIGONAL FORM OF BOVINE PANCREATIC PHOSPHOLIPASE A2 REMARK 1 REF TO BE PUBLISHED REMARK 1 REFN REMARK 1 REFERENCE 2 REMARK 1 AUTH K.SEKAR,S.ESWARAMOORTHY,M.K.JAIN,M.SUNDARALINGAM REMARK 1 TITL CRYSTAL STRUCTURE OF THE COMPLEX OF BOVINE REMARK 1 TITL 2 PANCREATIC PHOSPHOLIPASE A2 WITH THE INHIBITOR REMARK 1 TITL 3 1-HEXADECYL-3-(TRIFLUOROETHYL)-SN-GLYCERO-2- REMARK 1 TITL 4 PHOSPHOMETHANOL REMARK 1 REF BIOCHEMISTRY V. 36 14186 1997 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 3 REMARK 1 AUTH K.SEKAR,B.Z.YU,J.ROGERS,J.LUTTON,X.LIU,X.CHEN, REMARK 1 AUTH 2 M.D.TSAI,M.K.JAIN,M.SUNDARALINGAM REMARK 1 TITL PHOSPHOLIPASE A2 ENGINEERING. STRUCTURAL AND REMARK 1 TITL 2 FUNCTIONAL ROLES OF THE HIGHLY CONSERVED ACTIVE REMARK 1 TITL 3 SITE RESIDUE ASPARTATE-99 REMARK 1 REF BIOCHEMISTRY V. 36 3104 1997 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 4 REMARK 1 AUTH B.HUANG,B.Z.YU,J.ROGERS,I.J.BYEON,K.SEKAR,X.CHEN, REMARK 1 AUTH 2 M.SUNDARALINGAM,M.D.TSAI,M.K.JAIN REMARK 1 TITL PHOSPHOLIPASE A2 ENGINEERING. DELETION OF THE REMARK 1 TITL 2 C-TERMINUS SEGMENT CHANGES SUBSTRATE SPECIFICITY REMARK 1 TITL 3 AND UNCOUPLES CALCIUM AND SUBSTRATE BINDING AT THE REMARK 1 TITL 4 ZWITTERIONIC INTERFACE REMARK 1 REF BIOCHEMISTRY V. 35 12164 1996 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 5 REMARK 1 AUTH J.P.NOEL,C.A.BINGMAN,T.L.DENG,C.M.DUPUREUR, REMARK 1 AUTH 2 K.J.HAMILTON,R.T.JIANG,J.G.KWAK,C.SEKHARUDU, REMARK 1 AUTH 3 M.SUNDARALINGAM,M.D.TSAI REMARK 1 TITL PHOSPHOLIPASE A2 ENGINEERING. X-RAY STRUCTURAL AND REMARK 1 TITL 2 FUNCTIONAL EVIDENCE FOR THE INTERACTION OF REMARK 1 TITL 3 LYSINE-56 WITH SUBSTRATES REMARK 1 REF BIOCHEMISTRY V. 30 11801 1991 REMARK 1 REFN ISSN 0006-2960

REMARK 2 REMARK 2 RESOLUTION. 1.89 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.89 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 72.0 REMARK 3 NUMBER OF REFLECTIONS : 8758 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.180 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 8 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.89 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.97 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 51.00 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.2720 REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 957 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 32 REMARK 3 SOLVENT ATOMS : 88 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 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.20 REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.014 REMARK 3 BOND ANGLES (DEGREES) : 1.87 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.70 REMARK 3 IMPROPER ANGLES (DEGREES) : 3.60 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL 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 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 : PARHCSDX.PRO REMARK 3 PARAMETER FILE 2 : OSUTSA.PAR REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 2 : OSUTSA.TOP REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

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

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 08-NOV-95 REMARK 200 TEMPERATURE (KELVIN) : 291 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : SIEMENS REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE(002) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : SIEMENS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XENGEN REMARK 200 DATA SCALING SOFTWARE : XENGEN REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 8758 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.890 REMARK 200 RESOLUTION RANGE LOW (A) : 15.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 8.0 REMARK 200 DATA REDUNDANCY : 5.000 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.07100 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.89 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.01 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.43400 REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: THE HIGH RESOLUTION REMARK 200 ATOMIC COORDINATES OF THE WILD TYPE REMARK 200 SOFTWARE USED: X-PLOR 3.1 REMARK 200 STARTING MODEL: WILD TYPE REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 47.27 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.33 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: CRYSTALS WERE GROWN BY CO- REMARK 280 CRYSTALLIZATION BY THE HANGING DROP VAPOR DIFFUSION METHOD REMARK 280 USING THE CONDITIONS 5 (MICRO)L OF THE MUTANT PROTEIN (20MG/ML REMARK 280 OF THE PROTEIN), 5MM CACL2, 50MM TRIS BUFFER, PH 7.2 AND 2.5 REMARK 280 (MICRO)L OF 75% MPD AND 2.0 (MICRO)L OF (2MM) IN THE DROPLET. REMARK 280 THE RESERVOIR CONTAINED (50%) OF MPD., PH 7.5, VAPOR DIFFUSION REMARK 280 - HANGING DROP

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+1/3 REMARK 290 3555 -X+Y,-X,Z+2/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+2/3 REMARK 290 6555 -X,-X+Y,-Z+1/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 34.30333 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 68.60667 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 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 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 68.60667 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 34.30333 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 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 350 BIOMT1 2 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 171.51667

REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 GLU A 81 CB GLU A 81 CG 0.291 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 LYS A 120 26.78 -61.59 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 CA A 124 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 TYR A 28 O REMARK 620 2 GLY A 30 O 90.2 REMARK 620 3 GLY A 32 O 94.7 85.5 REMARK 620 4 ASP A 49 OD2 97.9 161.4 77.2 REMARK 620 5 GEL A 150 O2P 79.2 69.6 154.1 128.4 REMARK 620 6 GEL A 150 O3P 165.1 75.1 82.5 95.7 96.9 REMARK 620 7 ASP A 49 OD1 111.6 138.5 125.0 52.8 80.1 81.5 REMARK 620 N 1 2 3 4 5 6

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 124 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GEL A 150

DBREF 1MKV A 1 123 UNP P00593 PA21B_BOVIN 23 145

SEQRES 1 A 123 ALA LEU TRP GLN PHE ASN GLY MET ILE LYS CYS LYS ILE SEQRES 2 A 123 PRO SER SER GLU PRO LEU LEU ASP PHE ASN ASN TYR GLY SEQRES 3 A 123 CYS TYR CYS GLY LEU GLY GLY SER GLY THR PRO VAL ASP SEQRES 4 A 123 ASP LEU ASP ARG CYS CYS GLN THR HIS ASP ASN CYS TYR SEQRES 5 A 123 LYS GLN ALA LYS LYS LEU ASP SER CYS LYS VAL LEU VAL SEQRES 6 A 123 ASP ASN PRO TYR THR ASN ASN TYR SER TYR SER CYS SER SEQRES 7 A 123 ASN ASN GLU ILE THR CYS SER SER GLU ASN ASN ALA CYS SEQRES 8 A 123 GLU ALA PHE ILE CYS ASN CYS ASP ARG ASN ALA ALA ILE SEQRES 9 A 123 CYS PHE SER LYS VAL PRO TYR ASN LYS GLU HIS LYS ASN SEQRES 10 A 123 LEU ASP LYS LYS ASN CYS

HET CA A 124 1 HET GEL A 150 31

HETNAM CA CALCIUM ION HETNAM GEL 1-O-OCTYL-2-HEPTYLPHOSPHONYL-SN-GLYCERO-3- HETNAM 2 GEL PHOSPHOETHANOLAMINE

FORMUL 2 CA CA 2+ FORMUL 3 GEL C20 H45 N O8 P2 FORMUL 4 HOH *88(H2 O)

HELIX 1 1 LEU A 2 LYS A 12 1 11 HELIX 2 2 PRO A 18 ASP A 21 1 4 HELIX 3 3 ASP A 40 LYS A 57 1 18 HELIX 4 4 ASP A 59 LYS A 62 1 4 HELIX 5 5 ALA A 90 LYS A 108 1 19 HELIX 6 6 LYS A 113 HIS A 115 5 3

SHEET 1 A 2 TYR A 75 SER A 78 0 SHEET 2 A 2 GLU A 81 CYS A 84 -1 N THR A 83 O SER A 76

SSBOND 1 CYS A 11 CYS A 77 1555 1555 2.04 SSBOND 2 CYS A 27 CYS A 123 1555 1555 2.02 SSBOND 3 CYS A 29 CYS A 45 1555 1555 2.03 SSBOND 4 CYS A 44 CYS A 105 1555 1555 2.04 SSBOND 5 CYS A 51 CYS A 98 1555 1555 2.03 SSBOND 6 CYS A 61 CYS A 91 1555 1555 2.03 SSBOND 7 CYS A 84 CYS A 96 1555 1555 2.05

LINK CA CA A 124 O TYR A 28 1555 1555 2.16 LINK CA CA A 124 O GLY A 30 1555 1555 2.40 LINK CA CA A 124 O GLY A 32 1555 1555 2.20 LINK CA CA A 124 OD2 ASP A 49 1555 1555 2.27 LINK CA CA A 124 O2P GEL A 150 1555 1555 2.37 LINK CA CA A 124 O3P GEL A 150 1555 1555 2.29 LINK CA CA A 124 OD1 ASP A 49 1555 1555 2.60

SITE 1 AC1 5 TYR A 28 GLY A 30 GLY A 32 ASP A 49 SITE 2 AC1 5 GEL A 150 SITE 1 AC2 14 PRO A 18 PHE A 22 ASN A 23 TYR A 28 SITE 2 AC2 14 GLY A 30 LEU A 31 GLY A 32 CYS A 45 SITE 3 AC2 14 HIS A 48 ASP A 49 TYR A 52 LYS A 53 SITE 4 AC2 14 TYR A 69 CA A 124

CRYST1 46.580 46.580 102.910 90.00 90.00 120.00 P 31 2 1 6

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 0.021468 0.012395 0.000000 0.00000

SCALE2 0.000000 0.024790 0.000000 0.00000

SCALE3 0.000000 0.000000 0.009717 0.00000