HEADER CALCIUM-BINDING PROTEIN 23-JAN-93 1CLM TITLE STRUCTURE OF PARAMECIUM TETRAURELIA CALMODULIN AT 1.8 ANGSTROMS TITLE 2 RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: CALMODULIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PARAMECIUM TETRAURELIA; SOURCE 3 ORGANISM_TAXID: 5888 KEYWDS CALCIUM-BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR M.SUNDARALINGAM REVDAT 6 07-FEB-24 1CLM 1 REMARK SEQADV LINK REVDAT 5 29-NOV-17 1CLM 1 HELIX REVDAT 4 24-FEB-09 1CLM 1 VERSN REVDAT 3 01-APR-03 1CLM 1 JRNL REVDAT 2 15-JAN-95 1CLM 1 SEQRES REVDAT 1 31-OCT-93 1CLM 0 JRNL AUTH S.T.RAO,S.WU,K.A.SATYSHUR,K.Y.LING,C.KUNG,M.SUNDARALINGAM JRNL TITL STRUCTURE OF PARAMECIUM TETRAURELIA CALMODULIN AT 1.8 A JRNL TITL 2 RESOLUTION. JRNL REF PROTEIN SCI. V. 2 436 1993 JRNL REFN ISSN 0961-8368 JRNL PMID 8453381 REMARK 2 REMARK 2 RESOLUTION. 1.80 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) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : NULL REMARK 3 DATA CUTOFF (SIGMA(F)) : 3.000 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 : 11458 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) : 0.210 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 : 1132 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 4 REMARK 3 SOLVENT ATOMS : 71 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) : 0.016 REMARK 3 BOND ANGLES (DEGREES) : 3.000 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: NULL REMARK 4 REMARK 4 1CLM 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_1000172377. 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 (%): 49.07 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.41 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,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 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 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 ALA A 1 REMARK 465 GLN A 2 REMARK 465 GLU A 3 REMARK 465 LYS A 148 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 CD2 LEU A 4 O HOH A 216 1455 1.26 REMARK 500 CG LEU A 4 O HOH A 216 1455 2.02 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 107 NE2 HIS A 107 CD2 -0.074 REMARK 500 HIS A 135 NE2 HIS A 135 CD2 -0.074 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 THR A 28 N - CA - CB ANGL. DEV. = -15.2 DEGREES REMARK 500 THR A 28 OG1 - CB - CG2 ANGL. DEV. = 15.7 DEGREES REMARK 500 THR A 62 CA - C - N ANGL. DEV. = -15.7 DEGREES REMARK 500 ILE A 63 CA - CB - CG2 ANGL. DEV. = 14.9 DEGREES REMARK 500 ARG A 106 NE - CZ - NH1 ANGL. DEV. = 4.8 DEGREES REMARK 500 ARG A 106 NE - CZ - NH2 ANGL. DEV. = -5.5 DEGREES REMARK 500 VAL A 108 CG1 - CB - CG2 ANGL. DEV. = 10.6 DEGREES REMARK 500 TYR A 138 CB - CG - CD2 ANGL. DEV. = -5.1 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 ASN A 60 2.55 -64.82 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 149 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 20 OD1 REMARK 620 2 ASP A 22 OD1 80.5 REMARK 620 3 ASP A 24 OD1 84.0 76.0 REMARK 620 4 THR A 26 O 84.8 155.8 83.5 REMARK 620 5 GLU A 31 OE1 110.2 128.4 152.4 74.8 REMARK 620 6 GLU A 31 OE2 95.4 75.5 151.2 125.2 53.8 REMARK 620 7 HOH A 169 O 166.7 88.3 86.5 103.3 82.3 88.5 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 150 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 56 OD1 REMARK 620 2 ASP A 58 OD1 75.0 REMARK 620 3 ASN A 60 OD1 86.5 74.4 REMARK 620 4 THR A 62 O 82.1 146.7 80.5 REMARK 620 5 GLU A 67 OE1 102.8 128.0 157.2 80.3 REMARK 620 6 GLU A 67 OE2 89.0 78.8 153.1 125.2 49.2 REMARK 620 7 HOH A 174 O 157.7 82.8 85.8 117.0 92.2 88.4 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 151 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 93 OD1 REMARK 620 2 ASP A 95 OD1 81.6 REMARK 620 3 ASN A 97 OD1 82.7 71.1 REMARK 620 4 LEU A 99 O 82.3 155.7 89.0 REMARK 620 5 GLU A 104 OE2 99.0 71.8 142.1 128.9 REMARK 620 6 GLU A 104 OE1 106.2 118.0 167.7 83.9 46.3 REMARK 620 7 HOH A 171 O 164.3 84.5 86.0 108.4 83.3 86.7 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 152 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 129 OD1 REMARK 620 2 ASP A 131 OD1 88.4 REMARK 620 3 ASP A 133 OD1 89.1 69.4 REMARK 620 4 HIS A 135 O 86.1 151.9 82.9 REMARK 620 5 GLU A 140 OE1 109.9 121.9 157.1 85.8 REMARK 620 6 GLU A 140 OE2 85.9 74.1 143.3 132.8 54.0 REMARK 620 7 HOH A 158 O 153.7 72.8 67.4 101.7 95.8 105.6 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 149 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 150 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 151 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 152 DBREF 1CLM A 1 148 UNP P07463 CALM_PARTE 1 148 SEQADV 1CLM GLN A 2 UNP P07463 GLU 2 CONFLICT SEQADV 1CLM GLU A 3 UNP P07463 GLN 3 CONFLICT SEQRES 1 A 148 ALA GLN GLU LEU THR GLU GLU GLN ILE ALA GLU PHE LYS SEQRES 2 A 148 GLU ALA PHE ALA LEU PHE ASP LYS ASP GLY ASP GLY THR SEQRES 3 A 148 ILE THR THR LYS GLU LEU GLY THR VAL MET ARG SER LEU SEQRES 4 A 148 GLY GLN ASN PRO THR GLU ALA GLU LEU GLN ASP MET ILE SEQRES 5 A 148 ASN GLU VAL ASP ALA ASP GLY ASN GLY THR ILE ASP PHE SEQRES 6 A 148 PRO GLU PHE LEU SER LEU MET ALA ARG LYS MET LYS GLU SEQRES 7 A 148 GLN ASP SER GLU GLU GLU LEU ILE GLU ALA PHE LYS VAL SEQRES 8 A 148 PHE ASP ARG ASP GLY ASN GLY LEU ILE SER ALA ALA GLU SEQRES 9 A 148 LEU ARG HIS VAL MET THR ASN LEU GLY GLU LYS LEU THR SEQRES 10 A 148 ASP ASP GLU VAL ASP GLU MET ILE ARG GLU ALA ASP ILE SEQRES 11 A 148 ASP GLY ASP GLY HIS ILE ASN TYR GLU GLU PHE VAL ARG SEQRES 12 A 148 MET MET VAL SER LYS HET CA A 149 1 HET CA A 150 1 HET CA A 151 1 HET CA A 152 1 HETNAM CA CALCIUM ION FORMUL 2 CA 4(CA 2+) FORMUL 6 HOH *71(H2 O) HELIX 1 H1 GLU A 7 PHE A 19 1 13 HELIX 2 H2 THR A 29 SER A 38 1 10 HELIX 3 H3 GLU A 45 VAL A 55 1 11 HELIX 4 H4 PHE A 65 PHE A 92 1 28 HELIX 5 H5 ALA A 102 ASN A 111 1 10 HELIX 6 H6 ASP A 118 ALA A 128 1 11 HELIX 7 H7 TYR A 138 SER A 147 1 10 SHEET 1 B1 2 THR A 26 THR A 28 0 SHEET 2 B1 2 THR A 62 ASP A 64 -1 SHEET 1 B2 2 LEU A 99 SER A 101 0 SHEET 2 B2 2 HIS A 135 ASN A 137 -1 LINK OD1 ASP A 20 CA CA A 149 1555 1555 2.34 LINK OD1 ASP A 22 CA CA A 149 1555 1555 2.50 LINK OD1 ASP A 24 CA CA A 149 1555 1555 2.15 LINK O THR A 26 CA CA A 149 1555 1555 2.20 LINK OE1 GLU A 31 CA CA A 149 1555 1555 2.47 LINK OE2 GLU A 31 CA CA A 149 1555 1555 2.13 LINK OD1 ASP A 56 CA CA A 150 1555 1555 2.36 LINK OD1 ASP A 58 CA CA A 150 1555 1555 2.36 LINK OD1 ASN A 60 CA CA A 150 1555 1555 2.35 LINK O THR A 62 CA CA A 150 1555 1555 1.92 LINK OE1 GLU A 67 CA CA A 150 1555 1555 2.52 LINK OE2 GLU A 67 CA CA A 150 1555 1555 2.59 LINK OD1 ASP A 93 CA CA A 151 1555 1555 2.22 LINK OD1 ASP A 95 CA CA A 151 1555 1555 2.51 LINK OD1 ASN A 97 CA CA A 151 1555 1555 2.06 LINK O LEU A 99 CA CA A 151 1555 1555 1.93 LINK OE2 GLU A 104 CA CA A 151 1555 1555 2.87 LINK OE1 GLU A 104 CA CA A 151 1555 1555 2.53 LINK OD1 ASP A 129 CA CA A 152 1555 1555 2.19 LINK OD1 ASP A 131 CA CA A 152 1555 1555 2.48 LINK OD1 ASP A 133 CA CA A 152 1555 1555 2.44 LINK O HIS A 135 CA CA A 152 1555 1555 2.23 LINK OE1 GLU A 140 CA CA A 152 1555 1555 2.09 LINK OE2 GLU A 140 CA CA A 152 1555 1555 2.54 LINK CA CA A 149 O HOH A 169 1555 1555 2.27 LINK CA CA A 150 O HOH A 174 1555 1555 2.09 LINK CA CA A 151 O HOH A 171 1555 1555 2.37 LINK CA CA A 152 O HOH A 158 1555 1555 2.25 SITE 1 AC1 6 ASP A 20 ASP A 22 ASP A 24 THR A 26 SITE 2 AC1 6 GLU A 31 HOH A 169 SITE 1 AC2 6 ASP A 56 ASP A 58 ASN A 60 THR A 62 SITE 2 AC2 6 GLU A 67 HOH A 174 SITE 1 AC3 6 ASP A 93 ASP A 95 ASN A 97 LEU A 99 SITE 2 AC3 6 GLU A 104 HOH A 171 SITE 1 AC4 6 ASP A 129 ASP A 131 ASP A 133 HIS A 135 SITE 2 AC4 6 GLU A 140 HOH A 158 CRYST1 29.660 53.790 25.490 92.84 97.02 88.54 P 1 1 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 0.033715 -0.000859 0.004116 0.00000 SCALE2 0.000000 0.018597 0.000871 0.00000 SCALE3 0.000000 0.000000 0.039571 0.00000