PDB Short entry for 1I4A HEADER METAL BINDING PROTEIN 20-FEB-01 1I4A TITLE CRYSTAL STRUCTURE OF PHOSPHORYLATION-MIMICKING MUTANT T6D OF ANNEXIN TITLE 2 IV COMPND MOL_ID: 1; COMPND 2 MOLECULE: ANNEXIN IV; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: ANNEXIN A4; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 3 ORGANISM_COMMON: CATTLE; SOURCE 4 ORGANISM_TAXID: 9913; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21DE3; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET11D KEYWDS CALCIUM-BINDING, MEMBRANE-BINDING, PHOSPHORYLATION MUTANT, METAL KEYWDS 2 BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR M.A.KAETZEL,Y.D.MO,T.R.MEALY,B.CAMPOS,W.BERGSMA-SCHUTTER,A.BRISSON, AUTHOR 2 J.R.DEDMAN,B.A.SEATON REVDAT 5 09-AUG-23 1I4A 1 REMARK REVDAT 4 27-OCT-21 1I4A 1 REMARK SEQADV LINK REVDAT 3 13-JUL-11 1I4A 1 VERSN REVDAT 2 24-FEB-09 1I4A 1 VERSN REVDAT 1 25-APR-01 1I4A 0 JRNL AUTH M.A.KAETZEL,Y.D.MO,T.R.MEALY,B.CAMPOS,W.BERGSMA-SCHUTTER, JRNL AUTH 2 A.BRISSON,J.R.DEDMAN,B.A.SEATON JRNL TITL PHOSPHORYLATION MUTANTS ELUCIDATE THE MECHANISM OF ANNEXIN JRNL TITL 2 IV-MEDIATED MEMBRANE AGGREGATION. JRNL REF BIOCHEMISTRY V. 40 4192 2001 JRNL REFN ISSN 0006-2960 JRNL PMID 11300800 JRNL DOI 10.1021/BI002507S REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 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) : 100.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 96.6 REMARK 3 NUMBER OF REFLECTIONS : 28309 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) : 0.204 REMARK 3 FREE R VALUE : 0.230 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 2798 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 : 2448 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 7 REMARK 3 SOLVENT ATOMS : 257 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 29.72 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 27.20 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) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.054 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 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : 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 1I4A COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-FEB-01. REMARK 100 THE DEPOSITION ID IS D_1000012885. 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 : 5.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X8C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M 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 : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 28686 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL REMARK 200 DATA REDUNDANCY : 2.000 REMARK 200 R MERGE (I) : 0.06500 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 16.0000 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 <I/SIGMA(I)> FOR SHELL : NULL 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: PDB ENTRY 1ANN REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 60.68 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.13 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, SODIUM ACETATE, REMARK 280 CALCIUM CHLORIDE, PH 5.0, VAPOR DIFFUSION, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 X+2/3,Y+1/3,Z+1/3 REMARK 290 5555 -Y+2/3,X-Y+1/3,Z+1/3 REMARK 290 6555 -X+Y+2/3,-X+1/3,Z+1/3 REMARK 290 7555 X+1/3,Y+2/3,Z+2/3 REMARK 290 8555 -Y+1/3,X-Y+2/3,Z+2/3 REMARK 290 9555 -X+Y+1/3,-X+2/3,Z+2/3 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 0.00000 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 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 59.53000 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 34.36966 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 27.38667 REMARK 290 SMTRY1 5 -0.500000 -0.866025 0.000000 59.53000 REMARK 290 SMTRY2 5 0.866025 -0.500000 0.000000 34.36966 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 27.38667 REMARK 290 SMTRY1 6 -0.500000 0.866025 0.000000 59.53000 REMARK 290 SMTRY2 6 -0.866025 -0.500000 0.000000 34.36966 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 27.38667 REMARK 290 SMTRY1 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 68.73932 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 54.77333 REMARK 290 SMTRY1 8 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 8 0.866025 -0.500000 0.000000 68.73932 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 54.77333 REMARK 290 SMTRY1 9 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 9 -0.866025 -0.500000 0.000000 68.73932 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 54.77333 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 3960 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 40890 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -125.0 KCAL/MOL 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 350 BIOMT1 2 -0.500000 -0.866025 0.000000 59.53000 REMARK 350 BIOMT2 2 0.866025 -0.500000 0.000000 -103.10898 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 -0.500000 0.866025 0.000000 119.06000 REMARK 350 BIOMT2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 3 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 ALA A 2 REMARK 465 LYS A 3 REMARK 465 GLY A 4 REMARK 465 GLY A 5 REMARK 465 ASP A 6 REMARK 465 VAL A 7 REMARK 465 LYS A 8 REMARK 465 ALA A 9 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 SER A 11 175.74 172.70 REMARK 500 VAL A 39 -70.98 -100.38 REMARK 500 PHE A 145 -139.25 54.88 REMARK 500 ASN A 244 81.10 -157.94 REMARK 500 LEU A 260 105.06 20.72 REMARK 500 ILE A 277 -65.19 -105.65 REMARK 500 ASP A 278 36.07 -144.86 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 401 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 MET A 26 O REMARK 620 2 GLY A 28 O 83.6 REMARK 620 3 GLY A 30 O 105.0 90.0 REMARK 620 4 GLU A 70 OE1 63.2 143.9 111.2 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 410 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 MET A 257 O REMARK 620 2 GLY A 261 O 105.1 REMARK 620 3 ASP A 301 OD1 78.2 88.6 REMARK 620 N 1 2 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 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 410 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 450 DBREF 1I4A A 1 318 UNP P13214 ANXA4_BOVIN 1 318 SEQADV 1I4A ASP A 6 UNP P13214 THR 6 ENGINEERED MUTATION SEQRES 1 A 318 ALA ALA LYS GLY GLY ASP VAL LYS ALA ALA SER GLY PHE SEQRES 2 A 318 ASN ALA ALA GLU ASP ALA GLN THR LEU ARG LYS ALA MET SEQRES 3 A 318 LYS GLY LEU GLY THR ASP GLU ASP ALA ILE ILE ASN VAL SEQRES 4 A 318 LEU ALA TYR ARG SER THR ALA GLN ARG GLN GLU ILE ARG SEQRES 5 A 318 THR ALA TYR LYS THR THR ILE GLY ARG ASP LEU MET ASP SEQRES 6 A 318 ASP LEU LYS SER GLU LEU SER GLY ASN PHE GLU GLN VAL SEQRES 7 A 318 ILE LEU GLY MET MET THR PRO THR VAL LEU TYR ASP VAL SEQRES 8 A 318 GLN GLU LEU ARG LYS ALA MET LYS GLY ALA GLY THR ASP SEQRES 9 A 318 GLU GLY CYS LEU ILE GLU ILE LEU ALA SER ARG THR PRO SEQRES 10 A 318 GLU GLU ILE ARG ARG ILE ASN GLN THR TYR GLN LEU GLN SEQRES 11 A 318 TYR GLY ARG SER LEU GLU ASP ASP ILE ARG SER ASP THR SEQRES 12 A 318 SER PHE MET PHE GLN ARG VAL LEU VAL SER LEU SER ALA SEQRES 13 A 318 GLY GLY ARG ASP GLU SER ASN TYR LEU ASP ASP ALA LEU SEQRES 14 A 318 MET ARG GLN ASP ALA GLN ASP LEU TYR GLU ALA GLY GLU SEQRES 15 A 318 LYS LYS TRP GLY THR ASP GLU VAL LYS PHE LEU THR VAL SEQRES 16 A 318 LEU CYS SER ARG ASN ARG ASN HIS LEU LEU HIS VAL PHE SEQRES 17 A 318 ASP GLU TYR LYS ARG ILE ALA GLN LYS ASP ILE GLU GLN SEQRES 18 A 318 SER ILE LYS SER GLU THR SER GLY SER PHE GLU ASP ALA SEQRES 19 A 318 LEU LEU ALA ILE VAL LYS CYS MET ARG ASN LYS SER ALA SEQRES 20 A 318 TYR PHE ALA GLU ARG LEU TYR LYS SER MET LYS GLY LEU SEQRES 21 A 318 GLY THR ASP ASP ASP THR LEU ILE ARG VAL MET VAL SER SEQRES 22 A 318 ARG ALA GLU ILE ASP MET LEU ASP ILE ARG ALA ASN PHE SEQRES 23 A 318 LYS ARG LEU TYR GLY LYS SER LEU TYR SER PHE ILE LYS SEQRES 24 A 318 GLY ASP THR SER GLY ASP TYR ARG LYS VAL LEU LEU ILE SEQRES 25 A 318 LEU CYS GLY GLY ASP ASP HET CA A 401 1 HET CA A 410 1 HET SO4 A 450 5 HETNAM CA CALCIUM ION HETNAM SO4 SULFATE ION FORMUL 2 CA 2(CA 2+) FORMUL 4 SO4 O4 S 2- FORMUL 5 HOH *257(H2 O) HELIX 1 1 ASN A 14 LYS A 27 1 14 HELIX 2 2 ASP A 32 ALA A 41 1 10 HELIX 3 3 SER A 44 GLY A 60 1 17 HELIX 4 4 ASP A 62 LEU A 71 1 10 HELIX 5 5 SER A 72 THR A 84 1 13 HELIX 6 6 PRO A 85 LYS A 99 1 15 HELIX 7 7 ASP A 104 ARG A 115 1 12 HELIX 8 8 THR A 116 GLY A 132 1 17 HELIX 9 9 SER A 134 THR A 143 1 10 HELIX 10 10 SER A 144 ALA A 156 1 13 HELIX 11 11 ASP A 166 GLY A 181 1 16 HELIX 12 12 ASP A 188 ARG A 199 1 12 HELIX 13 13 ASN A 200 GLN A 216 1 17 HELIX 14 14 ASP A 218 THR A 227 1 10 HELIX 15 15 SER A 228 LYS A 245 1 18 HELIX 16 16 ASN A 244 LYS A 258 1 15 HELIX 17 17 ASP A 263 ALA A 275 1 13 HELIX 18 18 ASP A 278 GLY A 291 1 14 HELIX 19 19 SER A 293 THR A 302 1 10 HELIX 20 20 SER A 303 GLY A 315 1 13 LINK O MET A 26 CA CA A 401 1555 1555 3.36 LINK O GLY A 28 CA CA A 401 1555 1555 2.98 LINK O GLY A 30 CA CA A 401 1555 1555 2.03 LINK OE1 GLU A 70 CA CA A 401 1555 1555 2.81 LINK O MET A 257 CA CA A 410 1555 1555 2.36 LINK O GLY A 261 CA CA A 410 1555 1555 2.59 LINK OD1 ASP A 301 CA CA A 410 1555 1555 2.53 SITE 1 AC1 5 MET A 26 GLY A 28 GLY A 30 THR A 31 SITE 2 AC1 5 GLU A 70 SITE 1 AC2 4 MET A 257 GLY A 259 GLY A 261 ASP A 301 SITE 1 AC3 4 ARG A 23 LYS A 27 ARG A 149 VAL A 190 CRYST1 119.060 119.060 82.160 90.00 90.00 120.00 H 3 9 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 0.008399 0.004849 0.000000 0.00000 SCALE2 0.000000 0.009698 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012171 0.00000