HEADER CALCIUM BINDING PROTEIN 19-OCT-05 2BCX TITLE CRYSTAL STRUCTURE OF CALMODULIN IN COMPLEX WITH A RYANODINE RECEPTOR TITLE 2 PEPTIDE COMPND MOL_ID: 1; COMPND 2 MOLECULE: CALMODULIN; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CAM; COMPND 5 ENGINEERED: YES; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: RYANODINE RECEPTOR 1; COMPND 8 CHAIN: B; COMPND 9 FRAGMENT: RESIDUES 3614-3643; COMPND 10 SYNONYM: SKELETAL MUSCLE-TYPE RYANODINE RECEPTOR, RYR1, RYR-1, COMPND 11 SKELETAL MUSCLE CALCIUM RELEASE CHANNEL; COMPND 12 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: GALLUS GALLUS; SOURCE 3 ORGANISM_COMMON: CHICKEN; SOURCE 4 ORGANISM_TAXID: 9031; SOURCE 5 GENE: CALM; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 MOL_ID: 2; SOURCE 10 SYNTHETIC: YES; SOURCE 11 OTHER_DETAILS: SYNTHETIC PEPTIDE BASED ON THE SEQUENCE OF RABBIT SOURCE 12 RYANODINE RECEPTOR 1 KEYWDS EF-HAND, TYPE-2 TURN, CALCIUM BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR A.A.MAXIMCIUC,Y.SHAMOO,K.R.MACKENZIE REVDAT 4 14-FEB-24 2BCX 1 REMARK LINK REVDAT 3 18-OCT-17 2BCX 1 REMARK REVDAT 2 24-FEB-09 2BCX 1 VERSN REVDAT 1 31-OCT-06 2BCX 0 JRNL AUTH A.A.MAXIMCIUC,J.A.PUTKEY,Y.SHAMOO,K.R.MACKENZIE JRNL TITL COMPLEX OF CALMODULIN WITH A RYANODINE RECEPTOR TARGET JRNL TITL 2 REVEALS A NOVEL, FLEXIBLE BINDING MODE. JRNL REF STRUCTURE V. 14 1547 2006 JRNL REFN ISSN 0969-2126 JRNL PMID 17027503 JRNL DOI 10.1016/J.STR.2006.08.011 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 9.99 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 989785.438 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 10802 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 SET) : 0.213 REMARK 3 FREE R VALUE : 0.249 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1009 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.008 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.00 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.12 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.80 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 3050 REMARK 3 BIN R VALUE (WORKING SET) : 0.2230 REMARK 3 BIN FREE R VALUE : 0.2550 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.40 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 174 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.019 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1347 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 4 REMARK 3 SOLVENT ATOMS : 80 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 23.90 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -2.53000 REMARK 3 B22 (A**2) : 6.31000 REMARK 3 B33 (A**2) : -3.78000 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.23 REMARK 3 ESD FROM SIGMAA (A) : 0.06 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.28 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.10 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.008 REMARK 3 BOND ANGLES (DEGREES) : 1.200 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 20.20 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.130 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.270 ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.920 ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : 2.050 ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.070 ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.45 REMARK 3 BSOL : 50.43 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 : PROTEIN.TOP REMARK 3 PARAMETER FILE 2 : ION.TOP REMARK 3 PARAMETER FILE 3 : WATER.TOP REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN_REP.PARAM REMARK 3 TOPOLOGY FILE 2 : ION.PARAM REMARK 3 TOPOLOGY FILE 3 : WATER.PARAM REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2BCX COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 24-OCT-05. REMARK 100 THE DEPOSITION ID IS D_1000034946. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 03-DEC-04 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.7 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 : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : R-AXIS REMARK 200 DATA SCALING SOFTWARE : D*TREK 9.1SSI REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 10802 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 39.660 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 3.730 REMARK 200 R MERGE (I) : 0.03800 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 23.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.07 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.12900 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 7.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SAD REMARK 200 SOFTWARE USED: SHARP, SOLOMON REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 34.01 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.86 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 23% PEG 4000, 0.1 M SODIUM ACETATE, 5 REMARK 280 MM DTT, PH 4.7, VAPOR DIFFUSION, SITTING 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 19.05000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 45.15000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 22.05000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 45.15000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 19.05000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 22.05000 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: 3510 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 9410 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -77.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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 ASP A 2 REMARK 465 GLN A 3 REMARK 465 THR A 146 REMARK 465 ALA A 147 REMARK 465 LYS A 148 REMARK 465 LEU B 3641 REMARK 465 TYR B 3642 REMARK 465 ASN B 3643 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 203 O HOH A 209 1655 2.15 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 THR B3639 -68.05 -5.14 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 77.7 REMARK 620 3 ASP A 24 OD1 89.3 81.6 REMARK 620 4 THR A 26 O 81.7 154.5 83.2 REMARK 620 5 GLU A 31 OE2 92.4 77.8 158.4 118.3 REMARK 620 6 GLU A 31 OE1 107.1 128.5 147.7 72.2 51.1 REMARK 620 7 HOH A 171 O 163.7 86.2 86.0 113.1 86.4 84.7 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 150 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 56 OD1 REMARK 620 2 ASP A 58 OD1 80.9 REMARK 620 3 ASN A 60 OD1 92.3 78.3 REMARK 620 4 THR A 62 O 86.7 151.9 77.1 REMARK 620 5 GLU A 67 OE1 103.3 126.3 152.2 81.0 REMARK 620 6 GLU A 67 OE2 94.1 73.7 149.9 132.7 52.7 REMARK 620 N 1 2 3 4 5 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 85.2 REMARK 620 3 ASN A 97 OD1 80.8 77.7 REMARK 620 4 TYR A 99 O 82.8 155.1 78.9 REMARK 620 5 GLU A 104 OE2 103.6 128.7 153.2 75.5 REMARK 620 6 GLU A 104 OE1 95.2 75.7 153.3 127.0 53.4 REMARK 620 7 HOH A 160 O 159.6 101.5 82.0 83.4 87.3 105.0 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 77.6 REMARK 620 3 ASP A 133 OD1 90.2 81.7 REMARK 620 4 GLN A 135 O 88.6 151.8 73.7 REMARK 620 5 GLU A 140 OE1 109.9 127.9 146.3 79.9 REMARK 620 6 GLU A 140 OE2 91.2 78.5 159.3 126.9 50.6 REMARK 620 7 HOH A 154 O 164.7 88.3 81.8 101.5 83.4 91.7 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 2BCX A 1 148 UNP P62149 CALM_CHICK 1 148 DBREF 2BCX B 3614 3643 UNP P11716 RYR1_RABIT 3614 3643 SEQRES 1 A 148 ALA ASP GLN LEU THR GLU GLU GLN ILE ALA GLU PHE LYS SEQRES 2 A 148 GLU ALA PHE SER 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 THR MET MET ALA ARG LYS MET LYS ASP SEQRES 7 A 148 THR ASP SER GLU GLU GLU ILE ARG GLU ALA PHE ARG VAL SEQRES 8 A 148 PHE ASP LYS ASP GLY ASN GLY TYR 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 GLU GLU VAL ASP GLU MET ILE ARG GLU ALA ASP ILE SEQRES 11 A 148 ASP GLY ASP GLY GLN VAL ASN TYR GLU GLU PHE VAL GLN SEQRES 12 A 148 MET MET THR ALA LYS SEQRES 1 B 30 LYS SER LYS LYS ALA VAL TRP HIS LYS LEU LEU SER LYS SEQRES 2 B 30 GLN ARG ARG ARG ALA VAL VAL ALA CYS PHE ARG MET THR SEQRES 3 B 30 PRO LEU TYR ASN 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 3 CA 4(CA 2+) FORMUL 7 HOH *80(H2 O) HELIX 1 1 THR A 5 LEU A 18 1 14 HELIX 2 2 THR A 28 LEU A 39 1 12 HELIX 3 3 THR A 44 GLU A 54 1 11 HELIX 4 4 PHE A 65 LYS A 77 1 13 HELIX 5 5 GLU A 83 ASP A 93 1 11 HELIX 6 6 SER A 101 LEU A 112 1 12 HELIX 7 7 THR A 117 ASP A 129 1 13 HELIX 8 8 TYR A 138 MET A 145 1 8 HELIX 9 9 LYS B 3616 THR B 3639 1 24 SHEET 1 A 2 THR A 26 ILE A 27 0 SHEET 2 A 2 ILE A 63 ASP A 64 -1 O ILE A 63 N ILE A 27 SHEET 1 B 2 TYR A 99 ILE A 100 0 SHEET 2 B 2 VAL A 136 ASN A 137 -1 O VAL A 136 N ILE A 100 LINK OD1 ASP A 20 CA CA A 149 1555 1555 2.23 LINK OD1 ASP A 22 CA CA A 149 1555 1555 2.26 LINK OD1 ASP A 24 CA CA A 149 1555 1555 2.40 LINK O THR A 26 CA CA A 149 1555 1555 2.37 LINK OE2 GLU A 31 CA CA A 149 1555 1555 2.48 LINK OE1 GLU A 31 CA CA A 149 1555 1555 2.60 LINK OD1 ASP A 56 CA CA A 150 1555 1555 2.13 LINK OD1 ASP A 58 CA CA A 150 1555 1555 2.43 LINK OD1 ASN A 60 CA CA A 150 1555 1555 2.35 LINK O THR A 62 CA CA A 150 1555 1555 2.40 LINK OE1 GLU A 67 CA CA A 150 1555 1555 2.48 LINK OE2 GLU A 67 CA CA A 150 1555 1555 2.45 LINK OD1 ASP A 93 CA CA A 151 1555 1555 2.22 LINK OD1 ASP A 95 CA CA A 151 1555 1555 2.31 LINK OD1 ASN A 97 CA CA A 151 1555 1555 2.56 LINK O TYR A 99 CA CA A 151 1555 1555 2.29 LINK OE2 GLU A 104 CA CA A 151 1555 1555 2.44 LINK OE1 GLU A 104 CA CA A 151 1555 1555 2.47 LINK OD1 ASP A 129 CA CA A 152 1555 1555 2.21 LINK OD1 ASP A 131 CA CA A 152 1555 1555 2.40 LINK OD1 ASP A 133 CA CA A 152 1555 1555 2.44 LINK O GLN A 135 CA CA A 152 1555 1555 2.41 LINK OE1 GLU A 140 CA CA A 152 1555 1555 2.50 LINK OE2 GLU A 140 CA CA A 152 1555 1555 2.63 LINK CA CA A 149 O HOH A 171 1555 1555 2.54 LINK CA CA A 151 O HOH A 160 1555 1555 2.40 LINK CA CA A 152 O HOH A 154 1555 1555 2.44 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 171 SITE 1 AC2 5 ASP A 56 ASP A 58 ASN A 60 THR A 62 SITE 2 AC2 5 GLU A 67 SITE 1 AC3 6 ASP A 93 ASP A 95 ASN A 97 TYR A 99 SITE 2 AC3 6 GLU A 104 HOH A 160 SITE 1 AC4 6 ASP A 129 ASP A 131 ASP A 133 GLN A 135 SITE 2 AC4 6 GLU A 140 HOH A 154 CRYST1 38.100 44.100 90.300 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 0.026247 0.000000 0.000000 0.00000 SCALE2 0.000000 0.022676 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011074 0.00000