HEADER SERINE PROTEASE 22-NOV-91 1ST3 TITLE THE CRYSTAL STRUCTURE OF THE BACILLUS LENTUS ALKALINE PROTEASE, TITLE 2 SUBTILISIN BL, AT 1.4 ANGSTROMS RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: SUBTILISIN BL; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.21.62; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BACILLUS LENTUS; SOURCE 3 ORGANISM_TAXID: 1467 KEYWDS SERINE PROTEASE EXPDTA X-RAY DIFFRACTION AUTHOR D.W.GODDETTE REVDAT 5 14-FEB-24 1ST3 1 REMARK LINK REVDAT 4 29-NOV-17 1ST3 1 HELIX REVDAT 3 24-FEB-09 1ST3 1 VERSN REVDAT 2 01-APR-03 1ST3 1 JRNL REVDAT 1 31-JAN-94 1ST3 0 JRNL AUTH D.W.GODDETTE,C.PAECH,S.S.YANG,J.R.MIELENZ,C.BYSTROFF, JRNL AUTH 2 M.E.WILKE,R.J.FLETTERICK JRNL TITL THE CRYSTAL STRUCTURE OF THE BACILLUS LENTUS ALKALINE JRNL TITL 2 PROTEASE, SUBTILISIN BL, AT 1.4 A RESOLUTION. JRNL REF J.MOL.BIOL. V. 228 580 1992 JRNL REFN ISSN 0022-2836 JRNL PMID 1453465 JRNL DOI 10.1016/0022-2836(92)90843-9 REMARK 2 REMARK 2 RESOLUTION. 1.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 15.60 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) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : NULL 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) : 0.190 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 : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL 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 : 1888 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 2 REMARK 3 SOLVENT ATOMS : 157 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 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) : 0.015 REMARK 3 BOND ANGLES (DEGREES) : 2.560 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL 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 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NO SIGNIFICANT DENSITY WAS OBSERVED FOR REMARK 3 RESIDUES ARG 99 AND ARG 269. REMARK 4 REMARK 4 1ST3 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_1000176500. 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 (%): 46.50 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.30 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 26.54650 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 37.80500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 30.74500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 37.80500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 26.54650 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 30.74500 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: MONOMERIC 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: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 272 O HOH A 338 4556 0.23 REMARK 500 OG SER A 157 O HOH A 417 4466 0.25 REMARK 500 CE LYS A 27 O HOH A 421 4556 0.36 REMARK 500 O HOH A 325 O HOH A 406 3645 0.42 REMARK 500 OG SER A 210 O HOH A 414 2564 0.44 REMARK 500 O ALA A 131 O HOH A 401 2565 0.46 REMARK 500 O HOH A 336 O HOH A 393 4456 0.73 REMARK 500 CB SER A 210 O HOH A 414 2564 0.98 REMARK 500 CD LYS A 27 O HOH A 421 4556 1.25 REMARK 500 C ALA A 131 O HOH A 401 2565 1.29 REMARK 500 NZ LYS A 27 O HOH A 421 4556 1.45 REMARK 500 CB SER A 157 O HOH A 417 4466 1.50 REMARK 500 CA SER A 210 O HOH A 414 2564 1.99 REMARK 500 CA ALA A 131 O HOH A 401 2565 2.19 REMARK 500 REMARK 500 REMARK: NULL 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 HIS A 118 NE2 HIS A 118 CD2 -0.066 REMARK 500 REMARK 500 REMARK: NULL 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 TRP A 6 CD1 - CG - CD2 ANGL. DEV. = 6.0 DEGREES REMARK 500 TRP A 6 CE2 - CD2 - CG ANGL. DEV. = -5.9 DEGREES REMARK 500 ARG A 19 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 ARG A 19 NE - CZ - NH2 ANGL. DEV. = -4.0 DEGREES REMARK 500 ARG A 44 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 ARG A 99 NE - CZ - NH2 ANGL. DEV. = -3.5 DEGREES REMARK 500 TRP A 111 CE2 - CD2 - CG ANGL. DEV. = -5.4 DEGREES REMARK 500 ARG A 143 NE - CZ - NH1 ANGL. DEV. = 3.4 DEGREES REMARK 500 ARG A 180 NE - CZ - NH1 ANGL. DEV. = 5.9 DEGREES REMARK 500 VAL A 199 CG1 - CB - CG2 ANGL. DEV. = -11.1 DEGREES REMARK 500 TRP A 235 CD1 - CG - CD2 ANGL. DEV. = 6.7 DEGREES REMARK 500 TRP A 235 CE2 - CD2 - CG ANGL. DEV. = -5.4 DEGREES REMARK 500 TYR A 257 CB - CG - CD1 ANGL. DEV. = -4.4 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 A 32 -149.90 -163.09 REMARK 500 ALA A 71 30.10 -142.82 REMARK 500 ASN A 75 -153.79 -158.90 REMARK 500 VAL A 79 -161.25 -119.62 REMARK 500 ASP A 175 -168.37 -106.52 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 270 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLN A 2 OE1 REMARK 620 2 ASP A 40 OD2 155.9 REMARK 620 3 ASP A 40 OD1 152.1 51.6 REMARK 620 4 LEU A 73 O 81.2 104.3 84.3 REMARK 620 5 ASN A 75 OD1 78.7 124.3 77.4 89.5 REMARK 620 6 ILE A 77 O 87.8 91.1 99.8 162.8 75.2 REMARK 620 7 VAL A 79 O 79.5 77.1 124.0 88.7 158.1 102.4 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 271 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ALA A 163 O REMARK 620 2 TYR A 165 O 98.7 REMARK 620 3 ALA A 168 O 107.2 91.2 REMARK 620 4 HOH A 273 O 118.0 142.9 83.2 REMARK 620 5 HOH A 316 O 111.2 74.5 140.6 86.8 REMARK 620 N 1 2 3 4 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 270 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 271 DBREF 1ST3 A 2 269 UNP P29599 SUBB_BACLE 2 269 SEQRES 1 A 269 GLY GLN SER VAL PRO TRP GLY ILE SER ARG VAL GLN ALA SEQRES 2 A 269 PRO ALA ALA HIS ASN ARG GLY LEU THR GLY SER GLY VAL SEQRES 3 A 269 LYS VAL ALA VAL LEU ASP THR GLY ILE SER THR HIS PRO SEQRES 4 A 269 ASP LEU ASN ILE ARG GLY GLY ALA SER PHE VAL PRO GLY SEQRES 5 A 269 GLU PRO SER THR GLN ASP GLY ASN GLY HIS GLY THR HIS SEQRES 6 A 269 VAL ALA GLY THR ILE ALA ALA LEU ASN ASN SER ILE GLY SEQRES 7 A 269 VAL LEU GLY VAL ALA PRO SER ALA GLU LEU TYR ALA VAL SEQRES 8 A 269 LYS VAL LEU GLY ALA ASP GLY ARG GLY ALA ILE SER SER SEQRES 9 A 269 ILE ALA GLN GLY LEU GLU TRP ALA GLY ASN ASN GLY MET SEQRES 10 A 269 HIS VAL ALA ASN LEU SER LEU GLY SER PRO SER PRO SER SEQRES 11 A 269 ALA THR LEU GLU GLN ALA VAL ASN SER ALA THR SER ARG SEQRES 12 A 269 GLY VAL LEU VAL VAL ALA ALA SER GLY ASN SER GLY ALA SEQRES 13 A 269 SER SER ILE SER TYR PRO ALA ARG TYR ALA ASN ALA MET SEQRES 14 A 269 ALA VAL GLY ALA THR ASP GLN ASN ASN ASN ARG ALA SER SEQRES 15 A 269 PHE SER GLN TYR GLY ALA GLY LEU ASP ILE VAL ALA PRO SEQRES 16 A 269 GLY VAL ASN VAL GLN SER THR TYR PRO GLY SER THR TYR SEQRES 17 A 269 ALA SER LEU ASN GLY THR SER MET ALA THR PRO HIS VAL SEQRES 18 A 269 ALA GLY ALA ALA ALA LEU VAL LYS GLN LYS ASN PRO SER SEQRES 19 A 269 TRP SER ASN VAL GLN ILE ARG ASN HIS LEU LYS ASN THR SEQRES 20 A 269 ALA THR SER LEU GLY SER THR ASN LEU TYR GLY SER GLY SEQRES 21 A 269 LEU VAL ASN ALA GLU ALA ALA THR ARG HET CA A 270 1 HET CA A 271 1 HETNAM CA CALCIUM ION FORMUL 2 CA 2(CA 2+) FORMUL 4 HOH *157(H2 O) HELIX 1 A TRP A 6 ARG A 10 1 5 HELIX 2 B ALA A 13 ASN A 18 1 6 HELIX 3 C HIS A 62 ALA A 71 1 10 HELIX 4 D ILE A 102 ASN A 114 1 13 HELIX 5 E ALA A 131 SER A 142 1 12 HELIX 6 F THR A 214 LYS A 231 1 18 HELIX 7 G ASN A 237 ASN A 246 1 10 HELIX 8 H THR A 254 TYR A 257 1 4 HELIX 9 I ALA A 264 THR A 268 1 5 SHEET 1 A 7 GLY A 46 SER A 48 0 SHEET 2 A 7 GLU A 87 LYS A 92 1 N ALA A 90 O ALA A 47 SHEET 3 A 7 LYS A 27 ASP A 32 1 O VAL A 28 N TYR A 89 SHEET 4 A 7 VAL A 119 LEU A 122 1 O VAL A 119 N ALA A 29 SHEET 5 A 7 LEU A 146 ALA A 150 1 O LEU A 146 N ALA A 120 SHEET 6 A 7 MET A 169 THR A 174 1 O MET A 169 N ALA A 149 SHEET 7 A 7 ILE A 192 PRO A 195 1 O ILE A 192 N GLY A 172 SHEET 1 B 2 VAL A 199 PRO A 204 0 SHEET 2 B 2 THR A 207 ASN A 212 -1 N LEU A 211 O VAL A 199 LINK OE1 GLN A 2 CA CA A 270 1555 1555 2.29 LINK OD2 ASP A 40 CA CA A 270 1555 1555 2.38 LINK OD1 ASP A 40 CA CA A 270 1555 1555 2.48 LINK O LEU A 73 CA CA A 270 1555 1555 2.24 LINK OD1 ASN A 75 CA CA A 270 1555 1555 2.35 LINK O ILE A 77 CA CA A 270 1555 1555 2.27 LINK O VAL A 79 CA CA A 270 1555 1555 2.32 LINK O ALA A 163 CA CA A 271 1555 1555 2.18 LINK O TYR A 165 CA CA A 271 1555 1555 2.26 LINK O ALA A 168 CA CA A 271 1555 1555 2.25 LINK CA CA A 271 O HOH A 273 1555 1555 1.93 LINK CA CA A 271 O HOH A 316 1555 1555 1.87 CISPEP 1 TYR A 161 PRO A 162 0 3.35 SITE 1 AC1 6 GLN A 2 ASP A 40 LEU A 73 ASN A 75 SITE 2 AC1 6 ILE A 77 VAL A 79 SITE 1 AC2 5 ALA A 163 TYR A 165 ALA A 168 HOH A 273 SITE 2 AC2 5 HOH A 316 CRYST1 53.093 61.490 75.610 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 0.018835 0.000000 0.000000 0.00000 SCALE2 0.000000 0.016263 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013226 0.00000