HEADER HYDROLASE 27-JUN-03 1UHB TITLE CRYSTAL STRUCTURE OF PORCINE ALPHA TRYPSIN BOUND WITH AUTO TITLE 2 CATALYTICALY PRODUCED NATIVE PEPTIDE AT 2.15 A RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: TRYPSIN; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.21.4; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: TRYPSIN; COMPND 7 CHAIN: B; COMPND 8 EC: 3.4.21.4; COMPND 9 MOL_ID: 3; COMPND 10 MOLECULE: 9-MER PEPTIDE FROM TRYPSIN; COMPND 11 CHAIN: P; COMPND 12 EC: 3.4.21.4 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SUS SCROFA; SOURCE 3 ORGANISM_COMMON: PIG; SOURCE 4 ORGANISM_TAXID: 9823; SOURCE 5 MOL_ID: 2; SOURCE 6 ORGANISM_SCIENTIFIC: SUS SCROFA; SOURCE 7 ORGANISM_COMMON: PIG; SOURCE 8 ORGANISM_TAXID: 9823; SOURCE 9 MOL_ID: 3; SOURCE 10 ORGANISM_SCIENTIFIC: SUS SCROFA; SOURCE 11 ORGANISM_COMMON: PIG; SOURCE 12 ORGANISM_TAXID: 9823; SOURCE 13 OTHER_DETAILS: IT IS AN OLIGOPEPTIDE FRAGMENT FROM NATIVE TRYPSIN BY SOURCE 14 AUTO CATALYSIS OF TRYPSIN PRODUCED DURING PREPARATION OF TRYPSIN. KEYWDS SERINE PROTEASE, HYDROLASE, PEPTIDE TRYPSIN COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR V.PATTABHI,B.SYED IBRAHIM,N.SHAMALADEVI REVDAT 6 13-NOV-24 1UHB 1 REMARK REVDAT 5 25-OCT-23 1UHB 1 REMARK LINK REVDAT 4 06-NOV-19 1UHB 1 JRNL REVDAT 3 04-OCT-17 1UHB 1 REMARK REVDAT 2 24-FEB-09 1UHB 1 VERSN REVDAT 1 27-JUL-04 1UHB 0 JRNL AUTH B.S.IBRAHIM,N.SHAMALADEVI,V.PATTABHI JRNL TITL TRYPSIN ACTIVITY REDUCED BY AN AUTOCATALYTICALLY PRODUCED JRNL TITL 2 NONAPEPTIDE. JRNL REF J.BIOMOL.STRUCT.DYN. V. 21 737 2004 JRNL REFN ISSN 0739-1102 JRNL PMID 15106996 JRNL DOI 10.1080/07391102.2004.10506964 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH A.JOHNSON,N.GAUTHAM,V.PATTABHI REMARK 1 TITL CRYSTAL STRUCTURE AT 1.63 A RESOLUTION OF THE NATIVE FORM OF REMARK 1 TITL 2 PORCINE BETA-TRYPSIN: REVEALING AN ACETATE ION BINDING SITE REMARK 1 TITL 3 AND FUNCTIONAL WATER NETWORK REMARK 1 REF BIOCHIM.BIOPHYS.ACTA V.1435 7 1999 REMARK 1 REFN ISSN 0006-3002 REMARK 1 PMID 10561533 REMARK 1 DOI 10.1016/S0167-4838(99)00202-2 REMARK 2 REMARK 2 RESOLUTION. 2.15 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.0 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.15 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.31 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 88.4 REMARK 3 NUMBER OF REFLECTIONS : 9425 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 + TEST SET) : 0.193 REMARK 3 R VALUE (WORKING SET) : 0.193 REMARK 3 FREE R VALUE : 0.228 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.700 REMARK 3 FREE R VALUE TEST SET COUNT : 467 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.15 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.21 REMARK 3 REFLECTION IN BIN (WORKING SET) : 637 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.2000 REMARK 3 BIN FREE R VALUE SET COUNT : 487 REMARK 3 BIN FREE R VALUE : 0.2340 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1704 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 5 REMARK 3 SOLVENT ATOMS : 147 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 17.90 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.61000 REMARK 3 B22 (A**2) : 0.37000 REMARK 3 B33 (A**2) : 1.24000 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.378 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.229 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.236 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 8.915 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.946 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.917 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1727 ; 0.040 ; 0.021 REMARK 3 BOND LENGTHS OTHERS (A): 1496 ; 0.005 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2342 ; 2.597 ; 1.944 REMARK 3 BOND ANGLES OTHERS (DEGREES): 3513 ; 1.474 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 226 ; 4.676 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 293 ;19.016 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): NULL ; NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 264 ; 0.181 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1943 ; 0.014 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 313 ; 0.008 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 460 ; 0.391 ; 0.300 REMARK 3 NON-BONDED CONTACTS OTHERS (A): 1612 ; 0.256 ; 0.300 REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): 1 ; 0.022 ; 0.500 REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 197 ; 0.747 ; 0.500 REMARK 3 H-BOND (X...Y) OTHERS (A): 1 ; 0.010 ; 0.500 REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 61 ; 0.496 ; 0.300 REMARK 3 SYMMETRY VDW OTHERS (A): 92 ; 0.549 ; 0.300 REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 22 ; 0.234 ; 0.500 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 1134 ; 2.137 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1809 ; 3.316 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 593 ; 5.242 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 533 ; 7.358 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : BABINET MODEL WITH MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1UHB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 02-JUL-03. REMARK 100 THE DEPOSITION ID IS D_1000005825. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 293.0 REMARK 200 PH : 6.70 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) : 1.54 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL 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 : 9847 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.150 REMARK 200 RESOLUTION RANGE LOW (A) : 76.700 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL REMARK 200 DATA REDUNDANCY : 3.500 REMARK 200 R MERGE (I) : 0.14000 REMARK 200 R SYM (I) : NULL 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) : 2.15 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.23 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : 3.50 REMARK 200 R MERGE FOR SHELL (I) : 0.14000 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: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB CODE 1QQU REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 34.30 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.89 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1.5M AMMONIUM SULPHATE, PH 6.70, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 293K 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 23.47250 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 38.62250 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 26.96050 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 38.62250 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 23.47250 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 26.96050 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: TRIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 6800 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 9400 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -55.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, P 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: 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 SER A 37 54.32 -143.66 REMARK 500 HIS A 71 -57.97 -143.64 REMARK 500 ILE A 73 2.53 -64.51 REMARK 500 ASN A 115 -152.94 -153.94 REMARK 500 SER B 214 -67.82 -120.27 REMARK 500 ASP P 3 -149.74 -106.06 REMARK 500 CYS P 5 -68.05 -173.76 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 256 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 70 OE1 REMARK 620 2 ASN A 72 O 88.2 REMARK 620 3 VAL A 75 O 158.2 77.7 REMARK 620 4 GLU A 77 OE1 96.1 98.9 102.5 REMARK 620 5 GLU A 80 OE1 104.2 167.1 91.3 76.8 REMARK 620 6 HOH A 257 O 76.4 88.4 86.4 169.5 97.7 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT P 390 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 256 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1QQU RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE AT 1.63 A RESOLUTION OF THE NATIVE FORM OF REMARK 900 PORCINE BETA-TRYPSIN: REVEALING AN ACETATE ION BINDING SITE AND REMARK 900 FUNCTIONAL WATER DBREF 1UHB A 16 145 UNP P00761 TRYP_PIG 9 133 DBREF 1UHB B 146 245 UNP P00761 TRYP_PIG 134 231 DBREF 1UHB P 1 9 UNP P00761 TRYP_PIG 177 185 SEQRES 1 A 125 ILE VAL GLY GLY TYR THR CYS ALA ALA ASN SER ILE PRO SEQRES 2 A 125 TYR GLN VAL SER LEU ASN SER GLY SER HIS PHE CYS GLY SEQRES 3 A 125 GLY SER LEU ILE ASN SER GLN TRP VAL VAL SER ALA ALA SEQRES 4 A 125 HIS CYS TYR LYS SER ARG ILE GLN VAL ARG LEU GLY GLU SEQRES 5 A 125 HIS ASN ILE ASP VAL LEU GLU GLY ASN GLU GLN PHE ILE SEQRES 6 A 125 ASN ALA ALA LYS ILE ILE THR HIS PRO ASN PHE ASN GLY SEQRES 7 A 125 ASN THR LEU ASP ASN ASP ILE MET LEU ILE LYS LEU SER SEQRES 8 A 125 SER PRO ALA THR LEU ASN SER ARG VAL ALA THR VAL SER SEQRES 9 A 125 LEU PRO ARG SER CYS ALA ALA ALA GLY THR GLU CYS LEU SEQRES 10 A 125 ILE SER GLY TRP GLY ASN THR LYS SEQRES 1 B 98 SER SER GLY SER SER TYR PRO SER LEU LEU GLN CYS LEU SEQRES 2 B 98 LYS ALA PRO VAL LEU SER ASP SER SER CYS LYS SER SER SEQRES 3 B 98 TYR PRO GLY GLN ILE THR GLY ASN MET ILE CYS VAL GLY SEQRES 4 B 98 PHE LEU GLU GLY GLY LYS ASP SER CYS GLN GLY ASP SER SEQRES 5 B 98 GLY GLY PRO VAL VAL CYS ASN GLY GLN LEU GLN GLY ILE SEQRES 6 B 98 VAL SER TRP GLY TYR GLY CYS ALA GLN LYS ASN LYS PRO SEQRES 7 B 98 GLY VAL TYR THR LYS VAL CYS ASN TYR VAL ASN TRP ILE SEQRES 8 B 98 GLN GLN THR ILE ALA ALA ASN SEQRES 1 P 9 GLY LYS ASP SER CYS GLN GLY ASP SER HET CA A 256 1 HET ACT P 390 4 HETNAM CA CALCIUM ION HETNAM ACT ACETATE ION FORMUL 4 CA CA 2+ FORMUL 5 ACT C2 H3 O2 1- FORMUL 6 HOH *147(H2 O) HELIX 1 1 ALA A 55 TYR A 59 5 5 HELIX 2 2 SER B 164 TYR B 172 1 9 HELIX 3 3 TYR B 234 ALA B 244 1 11 SHEET 1 A 7 TYR A 20 THR A 21 0 SHEET 2 A 7 GLN B 156 PRO B 161 -1 O CYS B 157 N TYR A 20 SHEET 3 A 7 GLU A 135 GLY A 140 -1 N ILE A 138 O LEU B 158 SHEET 4 A 7 PRO B 198 CYS B 201 -1 O VAL B 200 N LEU A 137 SHEET 5 A 7 GLN B 204 TRP B 215 -1 O GLN B 204 N CYS B 201 SHEET 6 A 7 GLY B 226 LYS B 230 -1 O VAL B 227 N TRP B 215 SHEET 7 A 7 MET B 180 VAL B 183 -1 N ILE B 181 O TYR B 228 SHEET 1 B 7 GLN A 30 ASN A 34 0 SHEET 2 B 7 HIS A 40 LEU A 46 -1 O CYS A 42 N LEU A 33 SHEET 3 B 7 TRP A 51 SER A 54 -1 O VAL A 53 N SER A 45 SHEET 4 B 7 MET A 104 LEU A 108 -1 O MET A 104 N SER A 54 SHEET 5 B 7 GLN A 81 THR A 90 -1 N ALA A 86 O LYS A 107 SHEET 6 B 7 GLN A 64 LEU A 67 -1 N VAL A 65 O ILE A 83 SHEET 7 B 7 GLN A 30 ASN A 34 -1 N ASN A 34 O GLN A 64 SSBOND 1 CYS A 22 CYS B 157 1555 1555 2.03 SSBOND 2 CYS A 42 CYS A 58 1555 1555 2.03 SSBOND 3 CYS A 128 CYS B 232 1555 1555 2.04 SSBOND 4 CYS A 136 CYS B 201 1555 1555 2.03 SSBOND 5 CYS B 168 CYS B 182 1555 1555 2.03 SSBOND 6 CYS B 191 CYS B 220 1555 1555 2.03 LINK OE1 GLU A 70 CA CA A 256 1555 1555 2.55 LINK O ASN A 72 CA CA A 256 1555 1555 2.66 LINK O VAL A 75 CA CA A 256 1555 1555 2.58 LINK OE1 GLU A 77 CA CA A 256 1555 1555 2.73 LINK OE1 GLU A 80 CA CA A 256 1555 1555 2.65 LINK CA CA A 256 O HOH A 257 1555 1555 2.74 SITE 1 AC1 10 LYS A 60 ALA A 129 ALA A 130 ALA A 132 SITE 2 AC1 10 HOH A 288 VAL B 162 LEU B 163 SER B 164 SITE 3 AC1 10 ASP B 165 ASP P 8 SITE 1 AC2 6 GLU A 70 ASN A 72 VAL A 75 GLU A 77 SITE 2 AC2 6 GLU A 80 HOH A 257 CRYST1 46.945 53.921 77.245 90.00 90.00 90.00 P 21 21 21 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 0.021302 0.000000 0.000000 0.00000 SCALE2 0.000000 0.018546 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012946 0.00000