HEADER HYDROLASE (CARBOXYLIC ESTER) 08-APR-93 2PHI TITLE A LARGE CONFORMATIONAL CHANGE IS FOUND IN THE CRYSTAL STRUCTURE OF THE TITLE 2 PORCINE PANCREATIC PHOSPHOLIPASE A2 POINT MUTANT F63V COMPND MOL_ID: 1; COMPND 2 MOLECULE: PHOSPHOLIPASE A2; COMPND 3 CHAIN: A, B; COMPND 4 EC: 3.1.1.4; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SUS SCROFA; SOURCE 3 ORGANISM_COMMON: PIG; SOURCE 4 ORGANISM_TAXID: 9823; SOURCE 5 ORGAN: PANCREAS KEYWDS HYDROLASE (CARBOXYLIC ESTER) EXPDTA X-RAY DIFFRACTION AUTHOR B.W.DIJKSTRA,M.M.G.M.THUNNISSEN,K.H.KALK,J.DRENTH REVDAT 5 23-OCT-24 2PHI 1 REMARK REVDAT 4 05-JUN-24 2PHI 1 REMARK SEQADV LINK REVDAT 3 25-JAN-12 2PHI 1 JRNL VERSN REVDAT 2 24-FEB-09 2PHI 1 VERSN REVDAT 1 15-JUL-93 2PHI 0 JRNL AUTH M.M.THUNNISSEN,P.A.FRANKEN,G.H.DE HAAS,J.DRENTH,K.H.KALK, JRNL AUTH 2 H.M.VERHEIJ,B.W.DIJKSTRA JRNL TITL CRYSTAL STRUCTURE OF A PORCINE PANCREATIC PHOSPHOLIPASE A2 JRNL TITL 2 MUTANT. A LARGE CONFORMATIONAL CHANGE CAUSED BY THE F63V JRNL TITL 3 POINT MUTATION. JRNL REF J.MOL.BIOL. V. 232 839 1993 JRNL REFN ISSN 0022-2836 JRNL PMID 8355274 JRNL DOI 10.1006/JMBI.1993.1435 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH B.W.DIJKSTRA,R.RENETSEDER,K.H.KALK,W.G.J.HOL,J.DRENTH REMARK 1 TITL STRUCTURE OF PORCINE PANCREATIC PHOSPHOLIPASE A2 AT 2.6 REMARK 1 TITL 2 ANGSTROMS RESOLUTION AND COMPARISON WITH BOVINE REMARK 1 TITL 3 PHOSPHOLIPASE A2 REMARK 1 REF J.MOL.BIOL. V. 168 163 1983 REMARK 1 REFN ISSN 0022-2836 REMARK 1 REFERENCE 2 REMARK 1 AUTH B.W.DIJKSTRA,W.J.WEIJER,R.K.WIERENGA REMARK 1 TITL POLYPEPTIDE CHAINS WITH SIMILAR AMINO ACID SEQUENCES BUT A REMARK 1 TITL 2 DISTINCTLY DIFFERENT CONFORMATION. BOVINE AND PORCINE REMARK 1 TITL 3 PHOSPHOLIPASE A2 REMARK 1 REF FEBS LETT. V. 164 25 1983 REMARK 1 REFN ISSN 0014-5793 REMARK 1 REFERENCE 3 REMARK 1 AUTH B.W.DIJKSTRA,G.J.H.VANNES,K.H.KALK,N.P.BRANDENBURG, REMARK 1 AUTH 2 W.G.J.HOL,J.DRENTH REMARK 1 TITL THE STRUCTURE OF BOVINE PANCREATIC PROPHOSPHOLIPASE A2 AT REMARK 1 TITL 2 3.0 ANGSTROMS RESOLUTION REMARK 1 REF ACTA CRYSTALLOGR.,SECT.B V. 38 793 1982 REMARK 1 REFN ISSN 0108-7681 REMARK 2 REMARK 2 RESOLUTION. 2.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : TNT REMARK 3 AUTHORS : TRONRUD,TEN EYCK,MATTHEWS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : NULL REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : NULL REMARK 3 REMARK 3 USING DATA ABOVE SIGMA CUTOFF. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.176 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 REMARK 3 USING ALL DATA, NO SIGMA CUTOFF. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1934 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 3 REMARK 3 SOLVENT ATOMS : 195 REMARK 3 REMARK 3 WILSON B VALUE (FROM FCALC, A**2) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. RMS WEIGHT COUNT REMARK 3 BOND LENGTHS (A) : NULL ; NULL ; NULL REMARK 3 BOND ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TORSION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TRIGONAL CARBON PLANES (A) : NULL ; NULL ; NULL REMARK 3 GENERAL PLANES (A) : NULL ; NULL ; NULL REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS (A) : NULL ; NULL ; NULL REMARK 3 REMARK 3 INCORRECT CHIRAL-CENTERS (COUNT) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL REMARK 3 REMARK 3 RESTRAINT LIBRARIES. REMARK 3 STEREOCHEMISTRY : NULL REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2PHI COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000178467. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : NULL REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : NULL REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL 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) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: X-PLOR REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.87 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.45 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 X+1/2,-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 39.94000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 26.31000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 32.61500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 26.31000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 39.94000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 32.61500 REMARK 290 SMTRY3 4 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 ENZYME CRYSTALLIZES AS A DIMER IN THE ASYMMETRIC UNIT. REMARK 300 THE TRANSFORMATION GIVEN ON *MTRIX* RECORDS BELOW YIELDS REMARK 300 OPTIMAL CARBON-ALPHA COORDINATES FOR CHAIN *A* WHEN APPLIED REMARK 300 TO CHAIN *B*. THE RMS DIFFERENCE FOR ALL 124 CARBON-ALPHA REMARK 300 PAIRS IS 0.526 ANGSTROMS, 0.153 FOR THE 93 CARBON-ALPHA REMARK 300 PAIRS WHEN THE MOST DEVIATING PAIRS ARE REMOVED. 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: 1520 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 13060 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -39.0 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: 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 6 NE - CZ - NH1 ANGL. DEV. = 5.3 DEGREES REMARK 500 ASP A 42 CB - CG - OD1 ANGL. DEV. = 7.5 DEGREES REMARK 500 ASP A 42 CB - CG - OD2 ANGL. DEV. = -7.3 DEGREES REMARK 500 ASP A 49 CB - CG - OD1 ANGL. DEV. = 6.4 DEGREES REMARK 500 ASP A 49 CB - CG - OD2 ANGL. DEV. = -6.0 DEGREES REMARK 500 ASP A 54 CB - CG - OD1 ANGL. DEV. = -8.1 DEGREES REMARK 500 ASP A 54 CB - CG - OD2 ANGL. DEV. = 6.5 DEGREES REMARK 500 ASP A 59 CB - CG - OD1 ANGL. DEV. = 6.4 DEGREES REMARK 500 ASP A 59 CB - CG - OD2 ANGL. DEV. = -6.2 DEGREES REMARK 500 ASP A 99 CB - CG - OD2 ANGL. DEV. = 5.8 DEGREES REMARK 500 ASP A 119 CB - CG - OD2 ANGL. DEV. = -5.6 DEGREES REMARK 500 TYR A 123 CB - CG - CD1 ANGL. DEV. = -3.8 DEGREES REMARK 500 ARG B 6 NE - CZ - NH1 ANGL. DEV. = 4.2 DEGREES REMARK 500 ASP B 42 CB - CG - OD2 ANGL. DEV. = -5.5 DEGREES REMARK 500 ARG B 43 NE - CZ - NH1 ANGL. DEV. = 4.3 DEGREES REMARK 500 ASP B 49 CB - CG - OD1 ANGL. DEV. = 5.9 DEGREES REMARK 500 ASP B 54 CB - CG - OD1 ANGL. DEV. = -5.5 DEGREES REMARK 500 LEU B 58 CB - CG - CD1 ANGL. DEV. = -10.4 DEGREES REMARK 500 ASP B 59 CB - CG - OD1 ANGL. DEV. = -6.7 DEGREES REMARK 500 ASP B 66 CB - CG - OD1 ANGL. DEV. = 6.1 DEGREES REMARK 500 ASP B 66 CB - CG - OD2 ANGL. DEV. = -7.2 DEGREES REMARK 500 ASP B 119 CB - CG - OD2 ANGL. DEV. = -7.1 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 LYS A 62 -70.09 -23.18 REMARK 500 ASP A 66 -84.70 -44.48 REMARK 500 ASN A 79 -96.79 68.06 REMARK 500 ASN B 79 -99.05 68.23 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 125 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 TYR A 28 O REMARK 620 2 GLY A 30 O 93.4 REMARK 620 3 GLY A 32 O 93.0 86.4 REMARK 620 4 ASP A 49 OD1 103.5 137.0 130.7 REMARK 620 5 ASP A 49 OD2 95.8 165.3 81.8 51.0 REMARK 620 6 HOH A 168 O 75.4 72.7 155.1 73.9 120.7 REMARK 620 7 HOH A 220 O 170.1 77.5 90.3 81.1 93.8 97.9 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA B 125 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 71 OE2 REMARK 620 2 SER A 72 O 95.0 REMARK 620 3 GLU A 92 OE2 100.8 91.9 REMARK 620 4 GLU B 71 OE2 89.7 83.9 169.0 REMARK 620 5 SER B 72 O 85.1 177.8 90.3 93.9 REMARK 620 6 GLU B 92 OE2 176.6 87.5 76.7 93.0 92.5 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA B 126 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 TYR B 28 O REMARK 620 2 GLY B 30 O 91.0 REMARK 620 3 GLY B 32 O 85.6 83.6 REMARK 620 4 ASP B 49 OD1 104.1 140.3 133.2 REMARK 620 5 ASP B 49 OD2 90.9 167.7 84.4 50.4 REMARK 620 6 HOH B 127 O 77.2 75.9 152.8 72.2 116.4 REMARK 620 7 HOH B 128 O 172.5 81.8 91.3 83.0 95.6 103.0 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 125 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 125 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 126 DBREF 2PHI A 1 124 UNP P00592 PA21B_PIG 23 146 DBREF 2PHI B 1 124 UNP P00592 PA21B_PIG 23 146 SEQADV 2PHI VAL A 63 UNP P00592 PHE 85 CONFLICT SEQADV 2PHI VAL B 63 UNP P00592 PHE 85 CONFLICT SEQRES 1 A 124 ALA LEU TRP GLN PHE ARG SER MET ILE LYS CYS ALA ILE SEQRES 2 A 124 PRO GLY SER HIS PRO LEU MET ASP PHE ASN ASN TYR GLY SEQRES 3 A 124 CYS TYR CYS GLY LEU GLY GLY SER GLY THR PRO VAL ASP SEQRES 4 A 124 GLU LEU ASP ARG CYS CYS GLU THR HIS ASP ASN CYS TYR SEQRES 5 A 124 ARG ASP ALA LYS ASN LEU ASP SER CYS LYS VAL LEU VAL SEQRES 6 A 124 ASP ASN PRO TYR THR GLU SER TYR SER TYR SER CYS SER SEQRES 7 A 124 ASN THR GLU ILE THR CYS ASN SER LYS ASN ASN ALA CYS SEQRES 8 A 124 GLU ALA PHE ILE CYS ASN CYS ASP ARG ASN ALA ALA ILE SEQRES 9 A 124 CYS PHE SER LYS ALA PRO TYR ASN LYS GLU HIS LYS ASN SEQRES 10 A 124 LEU ASP THR LYS LYS TYR CYS SEQRES 1 B 124 ALA LEU TRP GLN PHE ARG SER MET ILE LYS CYS ALA ILE SEQRES 2 B 124 PRO GLY SER HIS PRO LEU MET ASP PHE ASN ASN TYR GLY SEQRES 3 B 124 CYS TYR CYS GLY LEU GLY GLY SER GLY THR PRO VAL ASP SEQRES 4 B 124 GLU LEU ASP ARG CYS CYS GLU THR HIS ASP ASN CYS TYR SEQRES 5 B 124 ARG ASP ALA LYS ASN LEU ASP SER CYS LYS VAL LEU VAL SEQRES 6 B 124 ASP ASN PRO TYR THR GLU SER TYR SER TYR SER CYS SER SEQRES 7 B 124 ASN THR GLU ILE THR CYS ASN SER LYS ASN ASN ALA CYS SEQRES 8 B 124 GLU ALA PHE ILE CYS ASN CYS ASP ARG ASN ALA ALA ILE SEQRES 9 B 124 CYS PHE SER LYS ALA PRO TYR ASN LYS GLU HIS LYS ASN SEQRES 10 B 124 LEU ASP THR LYS LYS TYR CYS HET CA A 125 1 HET CA B 125 1 HET CA B 126 1 HETNAM CA CALCIUM ION FORMUL 3 CA 3(CA 2+) FORMUL 6 HOH *195(H2 O) HELIX 1 1 ALA A 1 ILE A 13 1 13 HELIX 2 2 HIS A 17 ASN A 23 1 7 HELIX 3 3 ASP A 39 ASN A 57 1 19 HELIX 4 4 LEU A 58 VAL A 63 1 6 HELIX 5 5 ASN A 89 ALA A 109 1 21 HELIX 6 6 ASN A 112 HIS A 115 5 4 HELIX 7 7 ASP A 119 CYS A 124 1 6 HELIX 8 8 ALA B 1 ILE B 13 1 13 HELIX 9 9 HIS B 17 ASN B 23 1 7 HELIX 10 10 ASP B 39 ASN B 57 1 19 HELIX 11 11 LEU B 58 VAL B 65 1 8 HELIX 12 12 ASN B 89 ALA B 109 1 21 HELIX 13 13 ASN B 112 HIS B 115 5 4 SHEET 1 A 2 TYR A 75 SER A 78 0 SHEET 2 A 2 GLU A 81 CYS A 84 -1 O GLU A 81 N SER A 78 SHEET 1 B 2 TYR B 75 SER B 78 0 SHEET 2 B 2 GLU B 81 CYS B 84 -1 O GLU B 81 N SER B 78 SSBOND 1 CYS A 11 CYS A 77 1555 1555 2.00 SSBOND 2 CYS A 27 CYS A 124 1555 1555 2.04 SSBOND 3 CYS A 29 CYS A 45 1555 1555 2.04 SSBOND 4 CYS A 44 CYS A 105 1555 1555 2.04 SSBOND 5 CYS A 51 CYS A 98 1555 1555 2.02 SSBOND 6 CYS A 61 CYS A 91 1555 1555 2.07 SSBOND 7 CYS A 84 CYS A 96 1555 1555 2.01 SSBOND 8 CYS B 11 CYS B 77 1555 1555 2.01 SSBOND 9 CYS B 27 CYS B 124 1555 1555 2.04 SSBOND 10 CYS B 29 CYS B 45 1555 1555 2.03 SSBOND 11 CYS B 44 CYS B 105 1555 1555 2.03 SSBOND 12 CYS B 51 CYS B 98 1555 1555 2.01 SSBOND 13 CYS B 61 CYS B 91 1555 1555 2.02 SSBOND 14 CYS B 84 CYS B 96 1555 1555 2.01 LINK O TYR A 28 CA CA A 125 1555 1555 2.30 LINK O GLY A 30 CA CA A 125 1555 1555 2.44 LINK O GLY A 32 CA CA A 125 1555 1555 2.35 LINK OD1 ASP A 49 CA CA A 125 1555 1555 2.60 LINK OD2 ASP A 49 CA CA A 125 1555 1555 2.47 LINK OE2 GLU A 71 CA CA B 125 1555 1555 2.56 LINK O SER A 72 CA CA B 125 1555 1555 2.44 LINK OE2 GLU A 92 CA CA B 125 1555 1555 2.40 LINK CA CA A 125 O HOH A 168 1555 1555 2.37 LINK CA CA A 125 O HOH A 220 1555 1555 2.32 LINK O TYR B 28 CA CA B 126 1555 1555 2.31 LINK O GLY B 30 CA CA B 126 1555 1555 2.44 LINK O GLY B 32 CA CA B 126 1555 1555 2.28 LINK OD1 ASP B 49 CA CA B 126 1555 1555 2.65 LINK OD2 ASP B 49 CA CA B 126 1555 1555 2.49 LINK OE2 GLU B 71 CA CA B 125 1555 1555 2.40 LINK O SER B 72 CA CA B 125 1555 1555 2.41 LINK OE2 GLU B 92 CA CA B 125 1555 1555 2.36 LINK CA CA B 126 O HOH B 127 1555 1555 2.42 LINK CA CA B 126 O HOH B 128 1555 1555 2.41 SITE 1 AC1 6 TYR A 28 GLY A 30 GLY A 32 ASP A 49 SITE 2 AC1 6 HOH A 168 HOH A 220 SITE 1 AC2 6 GLU A 71 SER A 72 GLU A 92 GLU B 71 SITE 2 AC2 6 SER B 72 GLU B 92 SITE 1 AC3 6 TYR B 28 GLY B 30 GLY B 32 ASP B 49 SITE 2 AC3 6 HOH B 127 HOH B 128 CRYST1 79.880 65.230 52.620 90.00 90.00 90.00 P 21 21 21 8 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 0.012519 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015330 0.000000 0.00000 SCALE3 0.000000 0.000000 0.019004 0.00000 MTRIX1 1 -0.998134 0.005944 -0.060766 121.96700 1 MTRIX2 1 0.006402 0.999953 -0.007342 -0.42200 1 MTRIX3 1 0.060720 -0.007717 -0.998125 74.08700 1