HEADER COMPLEX (PROTEINASE/INHIBITOR) 05-SEP-88 2SNI TITLE STRUCTURAL COMPARISON OF TWO SERINE PROTEINASE-PROTEIN INHIBITOR TITLE 2 COMPLEXES. EGLIN-C-SUBTILISIN CARLSBERG AND CI-2-SUBTILISIN NOVO COMPND MOL_ID: 1; COMPND 2 MOLECULE: SUBTILISIN NOVO; COMPND 3 CHAIN: E; COMPND 4 EC: 3.4.21.14; COMPND 5 ENGINEERED: YES; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: CHYMOTRYPSIN INHIBITOR 2; COMPND 8 CHAIN: I; COMPND 9 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BACILLUS AMYLOLIQUEFACIENS; SOURCE 3 ORGANISM_TAXID: 1390; SOURCE 4 MOL_ID: 2; SOURCE 5 ORGANISM_SCIENTIFIC: HORDEUM SP.; SOURCE 6 ORGANISM_TAXID: 50472 KEYWDS COMPLEX (PROTEINASE-INHIBITOR), COMPLEX (PROTEINASE-INHIBITOR) KEYWDS 2 COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR C.A.MCPHALEN,M.N.G.JAMES REVDAT 7 21-FEB-24 2SNI 1 REMARK SEQADV LINK REVDAT 6 29-NOV-17 2SNI 1 HELIX REVDAT 5 24-FEB-09 2SNI 1 VERSN REVDAT 4 01-APR-03 2SNI 1 JRNL REVDAT 3 15-JAN-93 2SNI 1 SOURCE REVDAT 2 19-APR-89 2SNI 1 JRNL REVDAT 1 07-SEP-88 2SNI 0 SPRSDE 07-SEP-88 2SNI 1SNI JRNL AUTH C.A.MCPHALEN,M.N.JAMES JRNL TITL STRUCTURAL COMPARISON OF TWO SERINE PROTEINASE-PROTEIN JRNL TITL 2 INHIBITOR COMPLEXES: EGLIN-C-SUBTILISIN CARLSBERG AND JRNL TITL 3 CI-2-SUBTILISIN NOVO. JRNL REF BIOCHEMISTRY V. 27 6582 1988 JRNL REFN ISSN 0006-2960 JRNL PMID 3064813 JRNL DOI 10.1021/BI00417A058 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH C.A.MCPHALEN,M.N.G.JAMES REMARK 1 TITL CRYSTAL AND MOLECULAR STRUCTURE OF THE SERINE PROTEINASE REMARK 1 TITL 2 INHIBITOR CI-2 FROM BARLEY SEEDS REMARK 1 REF BIOCHEMISTRY V. 26 261 1987 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 2 REMARK 1 AUTH C.A.MCPHALEN,I.SVENDSEN,I.JONASSEN,M.N.G.JAMES REMARK 1 TITL CRYSTAL AND MOLECULAR STRUCTURE OF CHYMOTRYPSIN INHIBITOR 2 REMARK 1 TITL 2 FROM BARLEY SEEDS IN COMPLEX WITH SUBTILISIN NOVO REMARK 1 REF PROC.NATL.ACAD.SCI.USA V. 82 7242 1985 REMARK 1 REFN ISSN 0027-8424 REMARK 2 REMARK 2 RESOLUTION. 2.10 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PROLSQ REMARK 3 AUTHORS : KONNERT,HENDRICKSON REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 16128 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 + TEST SET) : 0.154 REMARK 3 R VALUE (WORKING SET) : NULL 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 FIT/AGREEMENT OF MODEL WITH ALL DATA. 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 : 2451 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 2 REMARK 3 SOLVENT ATOMS : 168 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) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.006 ; 0.008 REMARK 3 ANGLE DISTANCE (A) : 0.024 ; 0.016 REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : 0.018 ; 0.016 REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : 0.013 ; 0.012 REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : 0.119 ; 0.080 REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL 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) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; 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 OTHER REFINEMENT REMARKS: REMARK 3 WATER MOLECULES WITH SEQUENCE NUMBERS 600 - 602 AND B REMARK 3 VALUES OF 0.0 WERE ADDED AT THE POSITIONS OF STRONG PEAKS REMARK 3 IN THE FINAL DIFFERENCE MAP, AND THEIR POSITIONS HAVE NOT REMARK 3 BEEN REFINED. REMARK 4 REMARK 4 2SNI 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_1000178635. 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: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 43.35 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.17 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 51.59500 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 28.41500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 51.59500 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 28.41500 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 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: 1720 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 12660 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -24.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: E, I 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 I 1 REMARK 465 SER I 2 REMARK 465 VAL I 3 REMARK 465 GLU I 4 REMARK 465 LYS I 5 REMARK 465 LYS I 6 REMARK 465 PRO I 7 REMARK 465 GLU I 8 REMARK 465 GLY I 9 REMARK 465 VAL I 10 REMARK 465 ASN I 11 REMARK 465 THR I 12 REMARK 465 GLY I 13 REMARK 465 ALA I 14 REMARK 465 GLY I 15 REMARK 465 ASP I 16 REMARK 465 ARG I 17 REMARK 465 HIS I 18 REMARK 465 ASN I 19 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 E 186 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 ARG E 186 NE - CZ - NH2 ANGL. DEV. = -3.8 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 ASP E 32 -148.51 -159.47 REMARK 500 SER E 63 -21.64 106.03 REMARK 500 ALA E 73 34.64 -149.20 REMARK 500 ASN E 77 -147.75 -153.37 REMARK 500 VAL E 81 -167.77 -110.09 REMARK 500 ASP I 74 34.53 71.49 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 E 276 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLN E 2 NE2 REMARK 620 2 ASP E 41 OD1 153.9 REMARK 620 3 ASP E 41 OD2 154.3 51.7 REMARK 620 4 LEU E 75 O 77.8 91.6 108.7 REMARK 620 5 ASN E 77 ND2 75.6 82.7 126.0 98.7 REMARK 620 6 ILE E 79 O 87.0 99.7 87.7 163.6 71.4 REMARK 620 7 VAL E 81 O 79.4 123.3 76.8 83.2 153.9 100.1 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA E 277 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLY E 169 O REMARK 620 2 TYR E 171 O 76.8 REMARK 620 3 VAL E 174 O 97.4 70.0 REMARK 620 4 GLU E 195 O 90.2 158.3 129.8 REMARK 620 5 ASP E 197 OD2 115.4 134.7 65.2 66.7 REMARK 620 6 HOH E 391 O 172.2 107.6 90.2 83.5 66.3 REMARK 620 N 1 2 3 4 5 REMARK 700 REMARK 700 SHEET REMARK 700 THE CROSS-OVER CONNECTION BETWEEN STRANDS 1 AND 2 OF SHEET REMARK 700 S1E IS LEFT-HANDED. REMARK 700 THE BETA-SHEET OF THE INHIBITOR IS IRREGULAR , WITH REMARK 700 WELL-ORDERED WATER MOLECULES PROVIDING ALL BUT ONE REMARK 700 HYDROGEN-BONDING BRIDGE BETWEEN STRANDS 2 AND 3. SEE THE REMARK 700 PAPER CITED ON THE *JRNL* RECORDS ABOVE. REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: ACT REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: catalytic site REMARK 800 REMARK 800 SITE_IDENTIFIER: IO1 REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: ion binding site REMARK 800 REMARK 800 SITE_IDENTIFIER: IO2 REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: ion binding site REMARK 800 REMARK 800 SITE_IDENTIFIER: RSB REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: inhibitor reactive site REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA E 276 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA E 277 REMARK 999 REMARK 999 SEQUENCE REMARK 999 THE ORDER OF THE FIRST FOUR RESIDUES OF CHAIN *I* IS REMARK 999 UNKNOWN. DBREF 2SNI E 1 275 UNP P00782 SUBT_BACAM 108 382 DBREF 2SNI I 1 83 UNP P01053 ICI2_HORVU 1 83 SEQADV 2SNI GLN E 251 UNP P00782 GLU 358 CONFLICT SEQRES 1 E 275 ALA GLN SER VAL PRO TYR GLY VAL SER GLN ILE LYS ALA SEQRES 2 E 275 PRO ALA LEU HIS SER GLN GLY TYR THR GLY SER ASN VAL SEQRES 3 E 275 LYS VAL ALA VAL ILE ASP SER GLY ILE ASP SER SER HIS SEQRES 4 E 275 PRO ASP LEU LYS VAL ALA GLY GLY ALA SER MET VAL PRO SEQRES 5 E 275 SER GLU THR ASN PRO PHE GLN ASP ASN ASN SER HIS GLY SEQRES 6 E 275 THR HIS VAL ALA GLY THR VAL ALA ALA LEU ASN ASN SER SEQRES 7 E 275 ILE GLY VAL LEU GLY VAL ALA PRO SER ALA SER LEU TYR SEQRES 8 E 275 ALA VAL LYS VAL LEU GLY ALA ASP GLY SER GLY GLN TYR SEQRES 9 E 275 SER TRP ILE ILE ASN GLY ILE GLU TRP ALA ILE ALA ASN SEQRES 10 E 275 ASN MET ASP VAL ILE ASN MET SER LEU GLY GLY PRO SER SEQRES 11 E 275 GLY SER ALA ALA LEU LYS ALA ALA VAL ASP LYS ALA VAL SEQRES 12 E 275 ALA SER GLY VAL VAL VAL VAL ALA ALA ALA GLY ASN GLU SEQRES 13 E 275 GLY THR SER GLY SER SER SER THR VAL GLY TYR PRO GLY SEQRES 14 E 275 LYS TYR PRO SER VAL ILE ALA VAL GLY ALA VAL ASP SER SEQRES 15 E 275 SER ASN GLN ARG ALA SER PHE SER SER VAL GLY PRO GLU SEQRES 16 E 275 LEU ASP VAL MET ALA PRO GLY VAL SER ILE GLN SER THR SEQRES 17 E 275 LEU PRO GLY ASN LYS TYR GLY ALA TYR ASN GLY THR SER SEQRES 18 E 275 MET ALA SER PRO HIS VAL ALA GLY ALA ALA ALA LEU ILE SEQRES 19 E 275 LEU SER LYS HIS PRO ASN TRP THR ASN THR GLN VAL ARG SEQRES 20 E 275 SER SER LEU GLN ASN THR THR THR LYS LEU GLY ASP SER SEQRES 21 E 275 PHE TYR TYR GLY LYS GLY LEU ILE ASN VAL GLN ALA ALA SEQRES 22 E 275 ALA GLN SEQRES 1 I 83 SER SER VAL GLU LYS LYS PRO GLU GLY VAL ASN THR GLY SEQRES 2 I 83 ALA GLY ASP ARG HIS ASN LEU LYS THR GLU TRP PRO GLU SEQRES 3 I 83 LEU VAL GLY LYS SER VAL GLU GLU ALA LYS LYS VAL ILE SEQRES 4 I 83 LEU GLN ASP LYS PRO GLU ALA GLN ILE ILE VAL LEU PRO SEQRES 5 I 83 VAL GLY THR ILE VAL THR MET GLU TYR ARG ILE ASP ARG SEQRES 6 I 83 VAL ARG LEU PHE VAL ASP LYS LEU ASP ASN ILE ALA GLU SEQRES 7 I 83 VAL PRO ARG VAL GLY HET CA E 276 1 HET CA E 277 1 HETNAM CA CALCIUM ION FORMUL 3 CA 2(CA 2+) FORMUL 5 HOH *168(H2 O) HELIX 1 EA TYR E 6 ILE E 11 1 6 HELIX 2 EB ALA E 13 SER E 18 1 6 HELIX 3 EC SER E 63 ALA E 74 1 12 HELIX 4 ED GLN E 103 ASN E 117 1 15 HELIX 5 EE SER E 132 SER E 145 1 14 HELIX 6 EF THR E 220 HIS E 238 1INTERRUPTED BY PRO 225 19 HELIX 7 EG THR E 242 ASN E 252 1 11 HELIX 8 EH ASP E 259 GLY E 264 1 6 HELIX 9 EI ASN E 269 ALA E 274 1 6 HELIX 10 IA SER I 31 LYS I 43 1 13 SHEET 1 S1E 7 GLY E 46 MET E 50 0 SHEET 2 S1E 7 SER E 89 VAL E 95 1 N ALA E 92 O GLY E 46 SHEET 3 S1E 7 VAL E 26 ASP E 32 1 N ASP E 32 O VAL E 93 SHEET 4 S1E 7 ASP E 120 MET E 124 1 O VAL E 121 N ALA E 29 SHEET 5 S1E 7 VAL E 148 ALA E 153 1 O VAL E 148 N ILE E 122 SHEET 6 S1E 7 ILE E 175 VAL E 180 1 N ILE E 175 O VAL E 149 SHEET 7 S1E 7 VAL E 198 GLY E 202 1 O VAL E 198 N GLY E 178 SHEET 1 S2E 2 ILE E 205 LEU E 209 0 SHEET 2 S2E 2 LYS E 213 TYR E 217 -1 O TYR E 217 N ILE E 205 SHEET 1 S1I 4 THR I 22 TRP I 24 0 SHEET 2 S1I 4 PRO I 80 VAL I 82 -1 N VAL I 82 O THR I 22 SHEET 3 S1I 4 ASP I 64 VAL I 70 -1 SHEET 4 S1I 4 GLN I 47 VAL I 53 1 N GLN I 47 O ASP I 64 LINK NE2 GLN E 2 CA CA E 276 1555 1555 2.38 LINK OD1 ASP E 41 CA CA E 276 1555 1555 2.43 LINK OD2 ASP E 41 CA CA E 276 1555 1555 2.56 LINK O LEU E 75 CA CA E 276 1555 1555 2.34 LINK ND2 ASN E 77 CA CA E 276 1555 1555 2.43 LINK O ILE E 79 CA CA E 276 1555 1555 2.35 LINK O VAL E 81 CA CA E 276 1555 1555 2.31 LINK O GLY E 169 CA CA E 277 1555 1555 2.85 LINK O TYR E 171 CA CA E 277 1555 1555 3.01 LINK O VAL E 174 CA CA E 277 1555 1555 2.83 LINK O GLU E 195 CA CA E 277 1555 1555 3.03 LINK OD2 ASP E 197 CA CA E 277 1555 1555 2.81 LINK CA CA E 277 O HOH E 391 1555 1555 2.92 CISPEP 1 TYR E 167 PRO E 168 0 2.25 SITE 1 ACT 3 ASP E 32 HIS E 64 SER E 221 SITE 1 IO1 6 GLN E 2 ASP E 41 LEU E 75 ASN E 77 SITE 2 IO1 6 ILE E 79 VAL E 81 SITE 1 IO2 6 GLY E 169 TYR E 171 VAL E 174 GLU E 195 SITE 2 IO2 6 ASP E 197 HOH E 391 SITE 1 RSB 2 MET I 59 GLU I 60 SITE 1 AC1 6 GLN E 2 ASP E 41 LEU E 75 ASN E 77 SITE 2 AC1 6 ILE E 79 VAL E 81 SITE 1 AC2 5 GLY E 169 TYR E 171 VAL E 174 ASP E 197 SITE 2 AC2 5 HOH E 391 CRYST1 103.190 56.830 68.740 90.00 127.47 90.00 C 1 2 1 4 ORIGX1 0.009691 0.000000 0.007428 0.00000 ORIGX2 0.000000 0.017596 0.000000 0.00000 ORIGX3 0.000000 0.000000 0.018329 0.00000 SCALE1 0.009691 0.000000 0.007428 0.00000 SCALE2 0.000000 0.017596 0.000000 0.00000 SCALE3 0.000000 0.000000 0.018329 0.00000