PDB Short entry for 1XVJ HEADER METAL BINDING PROTEIN 28-OCT-04 1XVJ TITLE CRYSTAL STRUCTURE OF RAT ALPHA-PARVALBUMIN D94S/G98E MUTANT COMPND MOL_ID: 1; COMPND 2 MOLECULE: PARVALBUMIN ALPHA; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: RATTUS NORVEGICUS; SOURCE 3 ORGANISM_COMMON: NORWAY RAT; SOURCE 4 ORGANISM_TAXID: 10116; SOURCE 5 GENE: PVALB, PVA; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS PARVALBUMIN, CALCIUM-BINDING PROTEIN, EF HAND PROTEIN, METAL BINDING KEYWDS 2 PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR J.J.TANNER,S.AGAH,Y.H.LEE,M.T.HENZL REVDAT 4 14-FEB-24 1XVJ 1 REMARK REVDAT 3 20-OCT-21 1XVJ 1 REMARK SEQADV LINK REVDAT 2 24-FEB-09 1XVJ 1 VERSN REVDAT 1 20-SEP-05 1XVJ 0 JRNL AUTH J.J.TANNER,S.AGAH,Y.H.LEE,M.T.HENZL JRNL TITL CRYSTAL STRUCTURE OF THE D94S/G98E VARIANT OF RAT JRNL TITL 2 ALPHA-PARVALBUMIN. AN EXPLANATION FOR THE REDUCED DIVALENT JRNL TITL 3 ION AFFINITY. JRNL REF BIOCHEMISTRY V. 44 10966 2005 JRNL REFN ISSN 0006-2960 JRNL PMID 16101280 JRNL DOI 10.1021/BI050770T REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.1.24 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) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 24.54 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.5 REMARK 3 NUMBER OF REFLECTIONS : 15257 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) : 0.199 REMARK 3 R VALUE (WORKING SET) : 0.197 REMARK 3 FREE R VALUE : 0.236 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.900 REMARK 3 FREE R VALUE TEST SET COUNT : 780 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) : 1.80 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.85 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1041 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.2610 REMARK 3 BIN FREE R VALUE SET COUNT : 53 REMARK 3 BIN FREE R VALUE : 0.3480 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1653 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 4 REMARK 3 SOLVENT ATOMS : 199 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 17.70 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.07000 REMARK 3 B22 (A**2) : -0.28000 REMARK 3 B33 (A**2) : 0.19000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -0.02000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.176 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.151 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.098 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.116 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.939 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.920 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1671 ; 0.010 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2224 ; 1.160 ; 1.978 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 216 ; 5.212 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): NULL ; NULL ; NULL 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): 252 ; 0.089 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1198 ; 0.004 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 817 ; 0.199 ; 0.200 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): 140 ; 0.108 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): 15 ; 0.083 ; 0.200 REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 35 ; 0.140 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 22 ; 0.123 ; 0.200 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): 1074 ; 0.531 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1702 ; 1.011 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 597 ; 1.834 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 522 ; 2.984 ; 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 1XVJ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 17-NOV-04. REMARK 100 THE DEPOSITION ID IS D_1000030812. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 25-MAR-03 REMARK 200 TEMPERATURE (KELVIN) : 173 REMARK 200 PH : NULL 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) : 1.54 REMARK 200 MONOCHROMATOR : OSMIC REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 15257 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 24.540 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 92.0 REMARK 200 DATA REDUNDANCY : 3.400 REMARK 200 R MERGE (I) : 0.06600 REMARK 200 R SYM (I) : 0.06600 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 25.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.86 REMARK 200 COMPLETENESS FOR SHELL (%) : 90.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.22400 REMARK 200 R SYM FOR SHELL (I) : 0.22400 REMARK 200 <I/SIGMA(I)> FOR SHELL : 9.600 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: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 38.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.98 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 28.49400 REMARK 290 SMTRY3 2 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 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 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 GLU A 9 CD OE1 OE2 REMARK 470 LYS A 52 CD CE NZ REMARK 470 LYS A 91 CD CE NZ 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 421 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 51 OD1 REMARK 620 2 ASP A 53 OD1 84.7 REMARK 620 3 SER A 55 OG 92.8 80.7 REMARK 620 4 PHE A 57 O 87.0 154.0 75.1 REMARK 620 5 GLU A 59 OE1 168.3 104.4 81.6 81.6 REMARK 620 6 GLU A 62 OE1 101.8 125.5 150.6 80.4 79.0 REMARK 620 7 GLU A 62 OE2 99.0 74.4 151.2 131.4 90.6 51.1 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 422 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 90 OD1 REMARK 620 2 ASP A 92 OD1 84.8 REMARK 620 3 SER A 94 OG 92.9 78.0 REMARK 620 4 LYS A 96 O 87.4 154.2 77.9 REMARK 620 5 GLU A 98 OE2 173.6 99.4 83.3 86.8 REMARK 620 6 GLU A 101 OE2 96.9 73.8 149.0 131.7 88.9 REMARK 620 7 GLU A 101 OE1 104.6 124.7 151.9 81.0 77.1 51.2 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA B 521 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP B 51 OD1 REMARK 620 2 ASP B 53 OD1 86.2 REMARK 620 3 SER B 55 OG 93.7 77.2 REMARK 620 4 PHE B 57 O 84.5 154.3 79.5 REMARK 620 5 GLU B 59 OE1 170.9 102.0 84.5 86.4 REMARK 620 6 GLU B 62 OE1 98.4 124.2 155.9 80.9 80.3 REMARK 620 7 GLU B 62 OE2 94.3 72.1 147.6 132.4 91.9 52.1 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA B 522 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP B 90 OD1 REMARK 620 2 ASP B 92 OD1 82.9 REMARK 620 3 SER B 94 OG 88.1 82.8 REMARK 620 4 LYS B 96 O 85.7 150.4 69.6 REMARK 620 5 GLU B 98 OE2 168.9 95.9 80.8 90.1 REMARK 620 6 GLU B 101 OE1 107.2 129.8 144.6 79.7 82.1 REMARK 620 7 GLU B 101 OE2 97.3 76.3 157.6 132.4 93.2 53.9 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 421 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 422 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 521 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 522 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1RWY RELATED DB: PDB REMARK 900 NATIVE PROTEIN REMARK 900 RELATED ID: 1S3P RELATED DB: PDB REMARK 900 S55D/E59D MUTANT DBREF 1XVJ A 1 109 UNP P02625 PRVA_RAT 1 109 DBREF 1XVJ B 1 109 UNP P02625 PRVA_RAT 1 109 SEQADV 1XVJ SER A 94 UNP P02625 ASP 94 ENGINEERED MUTATION SEQADV 1XVJ GLU A 98 UNP P02625 GLY 98 ENGINEERED MUTATION SEQADV 1XVJ SER B 94 UNP P02625 ASP 94 ENGINEERED MUTATION SEQADV 1XVJ GLU B 98 UNP P02625 GLY 98 ENGINEERED MUTATION SEQRES 1 A 109 SER MET THR ASP LEU LEU SER ALA GLU ASP ILE LYS LYS SEQRES 2 A 109 ALA ILE GLY ALA PHE THR ALA ALA ASP SER PHE ASP HIS SEQRES 3 A 109 LYS LYS PHE PHE GLN MET VAL GLY LEU LYS LYS LYS SER SEQRES 4 A 109 ALA ASP ASP VAL LYS LYS VAL PHE HIS ILE LEU ASP LYS SEQRES 5 A 109 ASP LYS SER GLY PHE ILE GLU GLU ASP GLU LEU GLY SER SEQRES 6 A 109 ILE LEU LYS GLY PHE SER SER ASP ALA ARG ASP LEU SER SEQRES 7 A 109 ALA LYS GLU THR LYS THR LEU MET ALA ALA GLY ASP LYS SEQRES 8 A 109 ASP GLY SER GLY LYS ILE GLU VAL GLU GLU PHE SER THR SEQRES 9 A 109 LEU VAL ALA GLU SER SEQRES 1 B 109 SER MET THR ASP LEU LEU SER ALA GLU ASP ILE LYS LYS SEQRES 2 B 109 ALA ILE GLY ALA PHE THR ALA ALA ASP SER PHE ASP HIS SEQRES 3 B 109 LYS LYS PHE PHE GLN MET VAL GLY LEU LYS LYS LYS SER SEQRES 4 B 109 ALA ASP ASP VAL LYS LYS VAL PHE HIS ILE LEU ASP LYS SEQRES 5 B 109 ASP LYS SER GLY PHE ILE GLU GLU ASP GLU LEU GLY SER SEQRES 6 B 109 ILE LEU LYS GLY PHE SER SER ASP ALA ARG ASP LEU SER SEQRES 7 B 109 ALA LYS GLU THR LYS THR LEU MET ALA ALA GLY ASP LYS SEQRES 8 B 109 ASP GLY SER GLY LYS ILE GLU VAL GLU GLU PHE SER THR SEQRES 9 B 109 LEU VAL ALA GLU SER HET CA A 421 1 HET CA A 422 1 HET CA B 521 1 HET CA B 522 1 HETNAM CA CALCIUM ION FORMUL 3 CA 4(CA 2+) FORMUL 7 HOH *199(H2 O) HELIX 1 1 SER A 1 LEU A 5 5 5 HELIX 2 2 SER A 7 ALA A 17 1 11 HELIX 3 3 ASP A 25 VAL A 33 1 9 HELIX 4 4 GLY A 34 LYS A 38 5 5 HELIX 5 5 SER A 39 ASP A 51 1 13 HELIX 6 6 GLU A 59 SER A 65 1 7 HELIX 7 7 SER A 65 SER A 71 1 7 HELIX 8 8 SER A 78 ASP A 90 1 13 HELIX 9 9 GLU A 98 GLU A 108 1 11 HELIX 10 10 SER B 1 LEU B 6 1 6 HELIX 11 11 SER B 7 ALA B 17 1 11 HELIX 12 12 ASP B 25 VAL B 33 1 9 HELIX 13 13 GLY B 34 LYS B 38 5 5 HELIX 14 14 SER B 39 ASP B 51 1 13 HELIX 15 15 GLU B 59 SER B 65 1 7 HELIX 16 16 SER B 65 SER B 71 1 7 HELIX 17 17 SER B 78 ASP B 90 1 13 HELIX 18 18 GLU B 98 GLU B 108 1 11 LINK OD1 ASP A 51 CA CA A 421 1555 1555 2.33 LINK OD1 ASP A 53 CA CA A 421 1555 1555 2.35 LINK OG SER A 55 CA CA A 421 1555 1555 2.54 LINK O PHE A 57 CA CA A 421 1555 1555 2.31 LINK OE1 GLU A 59 CA CA A 421 1555 1555 2.40 LINK OE1 GLU A 62 CA CA A 421 1555 1555 2.46 LINK OE2 GLU A 62 CA CA A 421 1555 1555 2.60 LINK OD1 ASP A 90 CA CA A 422 1555 1555 2.32 LINK OD1 ASP A 92 CA CA A 422 1555 1555 2.37 LINK OG SER A 94 CA CA A 422 1555 1555 2.47 LINK O LYS A 96 CA CA A 422 1555 1555 2.47 LINK OE2 GLU A 98 CA CA A 422 1555 1555 2.36 LINK OE2 GLU A 101 CA CA A 422 1555 1555 2.61 LINK OE1 GLU A 101 CA CA A 422 1555 1555 2.43 LINK OD1 ASP B 51 CA CA B 521 1555 1555 2.36 LINK OD1 ASP B 53 CA CA B 521 1555 1555 2.32 LINK OG SER B 55 CA CA B 521 1555 1555 2.40 LINK O PHE B 57 CA CA B 521 1555 1555 2.26 LINK OE1 GLU B 59 CA CA B 521 1555 1555 2.46 LINK OE1 GLU B 62 CA CA B 521 1555 1555 2.43 LINK OE2 GLU B 62 CA CA B 521 1555 1555 2.55 LINK OD1 ASP B 90 CA CA B 522 1555 1555 2.35 LINK OD1 ASP B 92 CA CA B 522 1555 1555 2.37 LINK OG SER B 94 CA CA B 522 1555 1555 2.49 LINK O LYS B 96 CA CA B 522 1555 1555 2.49 LINK OE2 GLU B 98 CA CA B 522 1555 1555 2.29 LINK OE1 GLU B 101 CA CA B 522 1555 1555 2.42 LINK OE2 GLU B 101 CA CA B 522 1555 1555 2.47 SITE 1 AC1 6 ASP A 51 ASP A 53 SER A 55 PHE A 57 SITE 2 AC1 6 GLU A 59 GLU A 62 SITE 1 AC2 6 ASP A 90 ASP A 92 SER A 94 LYS A 96 SITE 2 AC2 6 GLU A 98 GLU A 101 SITE 1 AC3 6 ASP B 51 ASP B 53 SER B 55 PHE B 57 SITE 2 AC3 6 GLU B 59 GLU B 62 SITE 1 AC4 6 ASP B 90 ASP B 92 SER B 94 LYS B 96 SITE 2 AC4 6 GLU B 98 GLU B 101 CRYST1 30.719 56.988 56.493 90.00 105.81 90.00 P 1 21 1 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 0.032553 0.000000 0.009219 0.00000 SCALE2 0.000000 0.017548 0.000000 0.00000 SCALE3 0.000000 0.000000 0.018397 0.00000