HEADER METAL BINDING PROTEIN 15-JUN-15 5C2D TITLE K428A MUTANT GP2C OF LARGE TERMINASE SUBUNIT FROM BACTERIOPHAGE SF6 TITLE 2 WITH CALCIUM COMPND MOL_ID: 1; COMPND 2 MOLECULE: GENE 2 PROTEIN; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: NUCLEASE DOMAIN (UNP RESIDUES 213-470); COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ENTEROBACTERIA PHAGE SF6; SOURCE 3 ORGANISM_COMMON: SHIGELLA FLEXNERI BACTERIOPHAGE VI; SOURCE 4 ORGANISM_TAXID: 10761; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET28B KEYWDS NUCLEASE DOMAIN, METAL ION, METAL BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR H.ZHAO,L.TANG REVDAT 6 06-MAR-24 5C2D 1 LINK REVDAT 5 25-DEC-19 5C2D 1 REMARK REVDAT 4 27-SEP-17 5C2D 1 REMARK REVDAT 3 06-SEP-17 5C2D 1 JRNL REMARK REVDAT 2 30-DEC-15 5C2D 1 JRNL REVDAT 1 21-OCT-15 5C2D 0 JRNL AUTH H.ZHAO,Z.LIN,A.Y.LYNN,B.VARNADO,J.A.BEUTLER,R.P.MURELLI, JRNL AUTH 2 S.F.LE GRICE,L.TANG JRNL TITL TWO DISTINCT MODES OF METAL ION BINDING IN THE NUCLEASE JRNL TITL 2 ACTIVE SITE OF A VIRAL DNA-PACKAGING TERMINASE: INSIGHT INTO JRNL TITL 3 THE TWO-METAL-ION CATALYTIC MECHANISM. JRNL REF NUCLEIC ACIDS RES. V. 43 11003 2015 JRNL REFN ESSN 1362-4962 JRNL PMID 26450964 JRNL DOI 10.1093/NAR/GKV1018 REMARK 2 REMARK 2 RESOLUTION. 1.59 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.9_1692) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.59 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 18.95 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.4 REMARK 3 NUMBER OF REFLECTIONS : 46036 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.161 REMARK 3 R VALUE (WORKING SET) : 0.160 REMARK 3 FREE R VALUE : 0.192 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 2302 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.170 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 19.890 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 28.64 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : NULL NULL REMARK 3 ANGLE : NULL NULL REMARK 3 CHIRALITY : NULL NULL REMARK 3 PLANARITY : NULL NULL REMARK 3 DIHEDRAL : NULL NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 1 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: ( CHAIN A AND RESID 213:453 ) REMARK 3 ORIGIN FOR THE GROUP (A): 41.9543 40.3298 24.4909 REMARK 3 T TENSOR REMARK 3 T11: 0.1220 T22: 0.1226 REMARK 3 T33: 0.1374 T12: -0.0125 REMARK 3 T13: -0.0059 T23: -0.0125 REMARK 3 L TENSOR REMARK 3 L11: 1.7702 L22: 0.9253 REMARK 3 L33: 1.9636 L12: -0.3137 REMARK 3 L13: -0.1365 L23: -0.2010 REMARK 3 S TENSOR REMARK 3 S11: -0.0021 S12: -0.0469 S13: 0.1435 REMARK 3 S21: -0.0015 S22: -0.0288 S23: -0.0471 REMARK 3 S31: -0.0682 S32: 0.1161 S33: 0.0272 REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 5C2D COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 25-JUN-15. REMARK 100 THE DEPOSITION ID IS D_1000210869. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 25-NOV-13 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 23-ID-B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.03361 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 325 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : XSCALE, AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 46066 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.590 REMARK 200 RESOLUTION RANGE LOW (A) : 29.600 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.6 REMARK 200 DATA REDUNDANCY : 3.000 REMARK 200 R MERGE (I) : 0.05200 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 16.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.59 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.62 REMARK 200 COMPLETENESS FOR SHELL (%) : 90.7 REMARK 200 DATA REDUNDANCY IN SHELL : 2.30 REMARK 200 R MERGE FOR SHELL (I) : 0.81400 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.200 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 60.38 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.10 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 100MM HEPES, PH7.5, 50MM NACL, 8% REMARK 280 PEG8000, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 66.53900 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 28.71850 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 66.53900 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 28.71850 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 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 MET A 193 REMARK 465 GLY A 194 REMARK 465 SER A 195 REMARK 465 SER A 196 REMARK 465 HIS A 197 REMARK 465 HIS A 198 REMARK 465 HIS A 199 REMARK 465 HIS A 200 REMARK 465 HIS A 201 REMARK 465 HIS A 202 REMARK 465 SER A 203 REMARK 465 SER A 204 REMARK 465 GLY A 205 REMARK 465 LEU A 206 REMARK 465 VAL A 207 REMARK 465 PRO A 208 REMARK 465 ARG A 209 REMARK 465 GLY A 210 REMARK 465 SER A 211 REMARK 465 HIS A 212 REMARK 465 ALA A 337 REMARK 465 GLY A 338 REMARK 465 ALA A 339 REMARK 465 TRP A 340 REMARK 465 ALA A 341 REMARK 465 ASP A 342 REMARK 465 GLU A 343 REMARK 465 VAL A 344 REMARK 465 VAL A 345 REMARK 465 GLN A 346 REMARK 465 GLY A 347 REMARK 465 ASP A 348 REMARK 465 ASN A 349 REMARK 465 VAL A 350 REMARK 465 ALA A 454 REMARK 465 LEU A 455 REMARK 465 VAL A 456 REMARK 465 ARG A 457 REMARK 465 GLU A 458 REMARK 465 GLU A 459 REMARK 465 THR A 460 REMARK 465 GLU A 461 REMARK 465 ILE A 462 REMARK 465 TYR A 463 REMARK 465 VAL A 464 REMARK 465 PRO A 465 REMARK 465 SER A 466 REMARK 465 SER A 467 REMARK 465 SER A 468 REMARK 465 GLY A 469 REMARK 465 TRP A 470 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 O HOH A 709 O HOH A 771 2.14 REMARK 500 O HOH A 606 O HOH A 802 2.18 REMARK 500 O HOH A 772 O HOH A 800 2.19 REMARK 500 O HOH A 750 O HOH A 829 2.19 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 SER A 246 -136.62 64.11 REMARK 500 ASP A 247 -145.28 -138.35 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 874 DISTANCE = 6.24 ANGSTROMS 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 501 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 244 OD2 REMARK 620 2 ASP A 296 OD2 98.3 REMARK 620 3 ASP A 444 OD2 87.1 163.6 REMARK 620 4 HOH A 601 O 70.9 138.7 57.7 REMARK 620 5 HOH A 606 O 77.3 62.1 134.3 76.6 REMARK 620 6 HOH A 759 O 116.3 121.3 68.7 46.0 80.3 REMARK 620 7 HOH A 798 O 88.0 81.8 82.9 135.1 137.9 140.5 REMARK 620 8 HOH A 815 O 171.8 84.7 88.1 111.9 110.8 67.9 84.8 REMARK 620 N 1 2 3 4 5 6 7 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 501 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4IDH RELATED DB: PDB REMARK 900 THE FULL LENGTH PROTEIN REMARK 900 RELATED ID: 5C10 RELATED DB: PDB REMARK 900 NATIVE GP2C REMARK 900 RELATED ID: 5C12 RELATED DB: PDB REMARK 900 K428A MUTANT PROTEIN WITH MG2+ REMARK 900 RELATED ID: 5C15 RELATED DB: PDB REMARK 900 K428A MUTANT PROTEIN WITH MN2+ REMARK 900 RELATED ID: 5C2F RELATED DB: PDB REMARK 900 K428A MUTANT PROTEIN WITH MN2+ AND BETA-THUJAPLICINOL DBREF 5C2D A 213 470 UNP Q716H3 Q716H3_BPSFV 213 470 SEQADV 5C2D MET A 193 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D GLY A 194 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D SER A 195 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D SER A 196 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D HIS A 197 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D HIS A 198 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D HIS A 199 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D HIS A 200 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D HIS A 201 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D HIS A 202 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D SER A 203 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D SER A 204 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D GLY A 205 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D LEU A 206 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D VAL A 207 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D PRO A 208 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D ARG A 209 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D GLY A 210 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D SER A 211 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D HIS A 212 UNP Q716H3 EXPRESSION TAG SEQADV 5C2D ALA A 428 UNP Q716H3 LYS 428 ENGINEERED MUTATION SEQRES 1 A 278 MET GLY SER SER HIS HIS HIS HIS HIS HIS SER SER GLY SEQRES 2 A 278 LEU VAL PRO ARG GLY SER HIS MET ALA ILE ILE LYS ARG SEQRES 3 A 278 GLU TRP LEU GLU ALA ALA THR ASP ALA HIS LYS LYS LEU SEQRES 4 A 278 GLY TRP LYS ALA LYS GLY ALA VAL VAL SER ALA HIS ASP SEQRES 5 A 278 PRO SER ASP THR GLY PRO ASP ALA LYS GLY TYR ALA SER SEQRES 6 A 278 ARG HIS GLY SER VAL VAL LYS ARG ILE ALA GLU GLY LEU SEQRES 7 A 278 LEU MET ASP ILE ASN GLU GLY ALA ASP TRP ALA THR SER SEQRES 8 A 278 LEU ALA ILE GLU ASP GLY ALA ASP HIS TYR LEU TRP ASP SEQRES 9 A 278 GLY ASP GLY VAL GLY ALA GLY LEU ARG ARG GLN THR THR SEQRES 10 A 278 GLU ALA PHE SER GLY LYS LYS ILE THR ALA THR MET PHE SEQRES 11 A 278 LYS GLY SER GLU SER PRO PHE ASP GLU ASP ALA PRO TYR SEQRES 12 A 278 GLN ALA GLY ALA TRP ALA ASP GLU VAL VAL GLN GLY ASP SEQRES 13 A 278 ASN VAL ARG THR ILE GLY ASP VAL PHE ARG ASN LYS ARG SEQRES 14 A 278 ALA GLN PHE TYR TYR ALA LEU ALA ASP ARG LEU TYR LEU SEQRES 15 A 278 THR TYR ARG ALA VAL VAL HIS GLY GLU TYR ALA ASP PRO SEQRES 16 A 278 ASP ASP MET LEU SER PHE ASP LYS GLU ALA ILE GLY GLU SEQRES 17 A 278 LYS MET LEU GLU LYS LEU PHE ALA GLU LEU THR GLN ILE SEQRES 18 A 278 GLN ARG LYS PHE ASN ASN ASN GLY LYS LEU GLU LEU MET SEQRES 19 A 278 THR ALA VAL GLU MET LYS GLN LYS LEU GLY ILE PRO SER SEQRES 20 A 278 PRO ASN LEU ALA ASP ALA LEU MET MET CYS MET HIS CYS SEQRES 21 A 278 PRO ALA LEU VAL ARG GLU GLU THR GLU ILE TYR VAL PRO SEQRES 22 A 278 SER SER SER GLY TRP HET CA A 501 1 HETNAM CA CALCIUM ION FORMUL 2 CA CA 2+ FORMUL 3 HOH *274(H2 O) HELIX 1 AA1 LYS A 217 THR A 225 1 9 HELIX 2 AA2 ASP A 226 GLY A 232 1 7 HELIX 3 AA3 ASP A 273 ASP A 288 1 16 HELIX 4 AA4 GLY A 299 GLY A 303 5 5 HELIX 5 AA5 LEU A 304 PHE A 312 1 9 HELIX 6 AA6 THR A 352 PHE A 357 1 6 HELIX 7 AA7 ASN A 359 GLY A 382 1 24 HELIX 8 AA8 ASP A 386 MET A 390 5 5 HELIX 9 AA9 ASP A 394 GLY A 399 1 6 HELIX 10 AB1 GLY A 399 THR A 411 1 13 HELIX 11 AB2 THR A 427 GLY A 436 1 10 HELIX 12 AB3 PRO A 440 CYS A 449 1 10 SHEET 1 AA1 6 THR A 318 PHE A 322 0 SHEET 2 AA1 6 HIS A 292 ASP A 296 1 N TRP A 295 O PHE A 322 SHEET 3 AA1 6 VAL A 239 ASP A 244 1 N SER A 241 O HIS A 292 SHEET 4 AA1 6 LYS A 253 HIS A 259 -1 O GLY A 254 N ASP A 244 SHEET 5 AA1 6 VAL A 262 GLY A 269 -1 O VAL A 262 N HIS A 259 SHEET 6 AA1 6 SER A 392 PHE A 393 1 O SER A 392 N VAL A 263 LINK OD2 ASP A 244 CA CA A 501 1555 1555 2.39 LINK OD2 ASP A 296 CA CA A 501 1555 1555 2.51 LINK OD2 ASP A 444 CA CA A 501 1555 1555 2.61 LINK CA CA A 501 O HOH A 601 1555 1555 2.95 LINK CA CA A 501 O HOH A 606 1555 1555 2.18 LINK CA CA A 501 O HOH A 759 1555 1555 2.62 LINK CA CA A 501 O HOH A 798 1555 1555 2.41 LINK CA CA A 501 O HOH A 815 1555 1555 2.64 SITE 1 AC1 8 ASP A 244 ASP A 296 ASP A 444 HOH A 601 SITE 2 AC1 8 HOH A 606 HOH A 759 HOH A 798 HOH A 815 CRYST1 133.078 57.437 46.568 90.00 98.99 90.00 C 1 2 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 0.007514 0.000000 0.001189 0.00000 SCALE2 0.000000 0.017410 0.000000 0.00000 SCALE3 0.000000 0.000000 0.021741 0.00000