HEADER HYDROLASE/HYDROLASE INHIBITOR 15-NOV-10 3PLP TITLE BOVINE TRYPSIN VARIANT X(TRIPLEILE227) IN COMPLEX WITH SMALL MOLECULE TITLE 2 INHIBITOR COMPND MOL_ID: 1; COMPND 2 MOLECULE: CATIONIC TRYPSIN; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 24-246; COMPND 5 SYNONYM: BETA-TRYPSIN, ALPHA-TRYPSIN CHAIN 1, ALPHA-TRYPSIN CHAIN 2; COMPND 6 EC: 3.4.21.4; COMPND 7 ENGINEERED: YES; COMPND 8 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 3 ORGANISM_COMMON: BOVINE; SOURCE 4 ORGANISM_TAXID: 9913; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET3A KEYWDS TRYPSIN-LIKE SERINE PROTEASE, HYDROLASE, PROTEIN BINDING, DUODENUM, KEYWDS 2 HYDROLASE-HYDROLASE INHIBITOR COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR A.TZIRIDIS,P.NEUMANN,U.BRAEUER,P.KOLENKO,M.T.STUBBS REVDAT 4 06-SEP-23 3PLP 1 REMARK SEQADV LINK REVDAT 3 24-SEP-14 3PLP 1 JRNL REVDAT 2 16-JUL-14 3PLP 1 JRNL REVDAT 1 07-DEC-11 3PLP 0 JRNL AUTH A.TZIRIDIS,D.RAUH,P.NEUMANN,P.KOLENKO,A.MENZEL,U.BRAUER, JRNL AUTH 2 C.URSEL,P.STEINMETZER,J.STURZEBECHER,A.SCHWEINITZ, JRNL AUTH 3 T.STEINMETZER,M.T.STUBBS JRNL TITL CORRELATING STRUCTURE AND LIGAND AFFINITY IN DRUG DISCOVERY: JRNL TITL 2 A CAUTIONARY TALE INVOLVING SECOND SHELL RESIDUES. JRNL REF BIOL.CHEM. V. 395 891 2014 JRNL REFN ISSN 1431-6730 JRNL PMID 25003390 JRNL DOI 10.1515/HSZ-2014-0158 REMARK 2 REMARK 2 RESOLUTION. 1.63 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.5.0110 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) : 1.63 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 28.89 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 24576 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) : 0.172 REMARK 3 R VALUE (WORKING SET) : 0.170 REMARK 3 FREE R VALUE : 0.211 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 2486 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) : 1.63 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.67 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1789 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 100.0 REMARK 3 BIN R VALUE (WORKING SET) : 0.3340 REMARK 3 BIN FREE R VALUE SET COUNT : 176 REMARK 3 BIN FREE R VALUE : 0.3700 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1633 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 35 REMARK 3 SOLVENT ATOMS : 301 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 19.00 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 17.33 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.53000 REMARK 3 B22 (A**2) : 0.53000 REMARK 3 B33 (A**2) : -0.80000 REMARK 3 B12 (A**2) : 0.27000 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): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): NULL REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.965 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1716 ; 0.011 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2326 ; 1.416 ; 1.966 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 224 ; 6.380 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 58 ;38.972 ;25.690 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 275 ;10.666 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 2 ;17.340 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 262 ; 0.102 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1256 ; 0.007 ; 0.021 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL 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): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL 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): 1106 ; 0.687 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1769 ; 1.224 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 610 ; 2.033 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 553 ; 3.092 ; 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 : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 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 3PLP COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 16-NOV-10. REMARK 100 THE DEPOSITION ID IS D_1000062526. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.0 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 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : RIGAKU SATURN 944+ REMARK 200 INTENSITY-INTEGRATION SOFTWARE : D*TREK REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 24576 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.630 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 8.600 REMARK 200 R MERGE (I) : 0.06900 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 20.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.51 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 30.00 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.8 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.05600 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 43.90 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: PDB ENTRY 1V2K REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 39.73 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.04 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20% PEG 8000, 0.1M IMIDAZOLE, 0.2M REMARK 280 AMMONIUM SULPHATE, PH 8.0, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 293K 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 36.29367 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 72.58733 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 72.58733 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 36.29367 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: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 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 A 71 -81.75 -122.14 REMARK 500 SER A 195 128.21 -30.89 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 480 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 70 OE1 REMARK 620 2 ASN A 72 O 89.7 REMARK 620 3 VAL A 75 O 164.2 80.4 REMARK 620 4 GLU A 80 OE2 105.6 158.5 87.4 REMARK 620 5 HOH A1130 O 86.2 88.0 105.5 78.3 REMARK 620 6 HOH A1132 O 78.9 102.9 91.3 94.9 161.4 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 CA A 480 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BBA A 481 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 482 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1V2K RELATED DB: PDB REMARK 900 RELATED ID: 3PLB RELATED DB: PDB REMARK 900 RELATED ID: 3PLK RELATED DB: PDB DBREF 3PLP A 16 245 UNP P00760 TRY1_BOVIN 24 246 SEQADV 3PLP GLU A 97 UNP P00760 ASN 102 ENGINEERED MUTATION SEQADV 3PLP TYR A 99 UNP P00760 LEU 104 ENGINEERED MUTATION SEQADV 3PLP SER A 172 UNP P00760 TYR 175 ENGINEERED MUTATION SEQADV 3PLP SER A 173 UNP P00760 PRO 176 ENGINEERED MUTATION SEQADV 3PLP PHE A 174 UNP P00760 GLY 177 ENGINEERED MUTATION SEQADV 3PLP ILE A 175 UNP P00760 GLN 178 ENGINEERED MUTATION SEQADV 3PLP ALA A 190 UNP P00760 SER 195 ENGINEERED MUTATION SEQADV 3PLP ILE A 227 UNP P00760 VAL 228 ENGINEERED MUTATION SEQRES 1 A 223 ILE VAL GLY GLY TYR THR CYS GLY ALA ASN THR VAL PRO SEQRES 2 A 223 TYR GLN VAL SER LEU ASN SER GLY TYR HIS PHE CYS GLY SEQRES 3 A 223 GLY SER LEU ILE ASN SER GLN TRP VAL VAL SER ALA ALA SEQRES 4 A 223 HIS CYS TYR LYS SER GLY ILE GLN VAL ARG LEU GLY GLU SEQRES 5 A 223 ASP ASN ILE ASN VAL VAL GLU GLY ASN GLU GLN PHE ILE SEQRES 6 A 223 SER ALA SER LYS SER ILE VAL HIS PRO SER TYR ASN SER SEQRES 7 A 223 GLU THR TYR ASN ASN ASP ILE MET LEU ILE LYS LEU LYS SEQRES 8 A 223 SER ALA ALA SER LEU ASN SER ARG VAL ALA SER ILE SER SEQRES 9 A 223 LEU PRO THR SER CYS ALA SER ALA GLY THR GLN CYS LEU SEQRES 10 A 223 ILE SER GLY TRP GLY ASN THR LYS SER SER GLY THR SER SEQRES 11 A 223 TYR PRO ASP VAL LEU LYS CYS LEU LYS ALA PRO ILE LEU SEQRES 12 A 223 SER ASP SER SER CYS LYS SER ALA SER SER PHE ILE ILE SEQRES 13 A 223 THR SER ASN MET PHE CYS ALA GLY TYR LEU GLU GLY GLY SEQRES 14 A 223 LYS ASP ALA CYS GLN GLY ASP SER GLY GLY PRO VAL VAL SEQRES 15 A 223 CYS SER GLY LYS LEU GLN GLY ILE VAL SER TRP GLY SER SEQRES 16 A 223 GLY CYS ALA GLN LYS ASN LYS PRO GLY ILE TYR THR LYS SEQRES 17 A 223 VAL CYS ASN TYR VAL SER TRP ILE LYS GLN THR ILE ALA SEQRES 18 A 223 SER ASN HET CA A 480 1 HET BBA A 481 28 HET GOL A 482 6 HETNAM CA CALCIUM ION HETNAM BBA 2,7-BIS-(4-AMIDINOBENZYLIDENE)-CYCLOHEPTAN-1-ONE HETNAM GOL GLYCEROL HETSYN BBA BIS-BENZAMIDINE HETSYN GOL GLYCERIN; PROPANE-1,2,3-TRIOL FORMUL 2 CA CA 2+ FORMUL 3 BBA C23 H28 N4 O FORMUL 4 GOL C3 H8 O3 FORMUL 5 HOH *301(H2 O) HELIX 1 1 ALA A 55 TYR A 59 5 5 HELIX 2 2 SER A 164 SER A 173 1 10 HELIX 3 3 TYR A 234 ASN A 245 1 12 SHEET 1 A 7 TYR A 20 THR A 21 0 SHEET 2 A 7 LYS A 156 PRO A 161 -1 O CYS A 157 N TYR A 20 SHEET 3 A 7 GLN A 135 GLY A 140 -1 N ILE A 138 O LEU A 158 SHEET 4 A 7 PRO A 198 CYS A 201 -1 O VAL A 200 N LEU A 137 SHEET 5 A 7 LYS A 204 TRP A 215 -1 O LYS A 204 N CYS A 201 SHEET 6 A 7 GLY A 226 LYS A 230 -1 O ILE A 227 N TRP A 215 SHEET 7 A 7 MET A 180 ALA A 183 -1 N PHE A 181 O TYR A 228 SHEET 1 B 7 GLN A 30 ASN A 34 0 SHEET 2 B 7 HIS A 40 ASN A 48 -1 O CYS A 42 N LEU A 33 SHEET 3 B 7 TRP A 51 SER A 54 -1 O TRP A 51 N ILE A 47 SHEET 4 B 7 MET A 104 LEU A 108 -1 O ILE A 106 N VAL A 52 SHEET 5 B 7 GLN A 81 VAL A 90 -1 N SER A 86 O LYS A 107 SHEET 6 B 7 GLN A 64 LEU A 67 -1 N LEU A 67 O GLN A 81 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 A 157 1555 1555 2.02 SSBOND 2 CYS A 42 CYS A 58 1555 1555 2.03 SSBOND 3 CYS A 128 CYS A 232 1555 1555 2.05 SSBOND 4 CYS A 136 CYS A 201 1555 1555 2.02 SSBOND 5 CYS A 168 CYS A 182 1555 1555 2.02 SSBOND 6 CYS A 191 CYS A 220 1555 1555 2.03 LINK OE1 GLU A 70 CA CA A 480 1555 1555 2.31 LINK O ASN A 72 CA CA A 480 1555 1555 2.34 LINK O VAL A 75 CA CA A 480 1555 1555 2.31 LINK OE2 GLU A 80 CA CA A 480 1555 1555 2.31 LINK CA CA A 480 O HOH A1130 1555 1555 2.50 LINK CA CA A 480 O HOH A1132 1555 1555 2.33 SITE 1 AC1 6 GLU A 70 ASN A 72 VAL A 75 GLU A 80 SITE 2 AC1 6 HOH A1130 HOH A1132 SITE 1 AC2 14 THR A 98 TYR A 99 SER A 127 CYS A 128 SITE 2 AC2 14 ASP A 189 ALA A 190 SER A 195 TRP A 215 SITE 3 AC2 14 GLY A 216 GLY A 219 CYS A 220 GLY A 226 SITE 4 AC2 14 HOH A1012 HOH A1167 SITE 1 AC3 5 GLU A 80 GLN A 81 PHE A 82 HOH A1213 SITE 2 AC3 5 HOH A1260 CRYST1 55.096 55.096 108.881 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 0.018150 0.010479 0.000000 0.00000 SCALE2 0.000000 0.020958 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009184 0.00000