HEADER IMMUNE SYSTEM 13-MAY-12 4F5W TITLE CRYSTAL STRUCTURE OF LIGAND FREE HUMAN STING CTD COMPND MOL_ID: 1; COMPND 2 MOLECULE: TRANSMEMBRANE PROTEIN 173; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 149-379; COMPND 5 SYNONYM: ENDOPLASMIC RETICULUM INTERFERON STIMULATOR, ERIS, MEDIATOR COMPND 6 OF IRF3 ACTIVATION, HMITA, STIMULATOR OF INTERFERON GENES PROTEIN, COMPND 7 HSTING; COMPND 8 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: TMEM173, ERIS, MITA, STING; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET-30A KEYWDS INNATE IMMUNITY HUMAN STING, INNATE IMMUNITY, IMMUNE SYSTEM EXPDTA X-RAY DIFFRACTION AUTHOR L.GU,G.SHANG,D.ZHU,N.LI,J.ZHANG,C.ZHU,D.LU,C.LIU,Q.YU,Y.ZHAO,S.XU REVDAT 3 20-MAR-24 4F5W 1 REMARK SEQADV REVDAT 2 04-SEP-13 4F5W 1 JRNL REVDAT 1 27-JUN-12 4F5W 0 JRNL AUTH G.SHANG,D.ZHU,N.LI,J.ZHANG,C.ZHU,D.LU,C.LIU,Q.YU,Y.ZHAO, JRNL AUTH 2 S.XU,L.GU JRNL TITL CRYSTAL STRUCTURES OF STING PROTEIN REVEAL BASIS FOR JRNL TITL 2 RECOGNITION OF CYCLIC DI-GMP JRNL REF NAT.STRUCT.MOL.BIOL. V. 19 725 2012 JRNL REFN ISSN 1545-9993 JRNL PMID 22728660 JRNL DOI 10.1038/NSMB.2332 REMARK 2 REMARK 2 RESOLUTION. 2.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.7.2_869) 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) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 45.51 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.4 REMARK 3 NUMBER OF REFLECTIONS : 14027 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.238 REMARK 3 R VALUE (WORKING SET) : 0.236 REMARK 3 FREE R VALUE : 0.275 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.030 REMARK 3 FREE R VALUE TEST SET COUNT : 706 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 45.5237 - 3.7637 0.99 2750 149 0.2179 0.2520 REMARK 3 2 3.7637 - 2.9875 1.00 2675 152 0.2406 0.2919 REMARK 3 3 2.9875 - 2.6099 1.00 2649 134 0.2667 0.2961 REMARK 3 4 2.6099 - 2.3713 1.00 2636 140 0.2593 0.3180 REMARK 3 5 2.3713 - 2.2014 0.99 2611 131 0.2688 0.2901 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 : 0.36 REMARK 3 B_SOL : 48.63 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.430 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 30.270 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) : -9.20270 REMARK 3 B22 (A**2) : 23.51900 REMARK 3 B33 (A**2) : -14.31630 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 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 : 0.008 1582 REMARK 3 ANGLE : 1.241 2144 REMARK 3 CHIRALITY : 0.086 234 REMARK 3 PLANARITY : 0.005 286 REMARK 3 DIHEDRAL : 18.137 598 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL 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 4F5W COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 17-MAY-12. REMARK 100 THE DEPOSITION ID IS D_1000072494. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 25-NOV-11 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRF REMARK 200 BEAMLINE : BL17U REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97946 REMARK 200 MONOCHROMATOR : SAGITTALLY FOCUSED SI(III) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14048 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.200 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.7 REMARK 200 DATA REDUNDANCY : 7.000 REMARK 200 R MERGE (I) : 0.07100 REMARK 200 R SYM (I) : 0.07100 REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.28 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 7.30 REMARK 200 R MERGE FOR SHELL (I) : 0.42100 REMARK 200 R SYM FOR SHELL (I) : 0.42100 REMARK 200 FOR SHELL : 5.820 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SAD REMARK 200 SOFTWARE USED: SOLVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 50.53 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.49 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.08M SODIUM CACODYLATE PH 6.5, 0.16M REMARK 280 CALCIUM ACETATE, 15% PEG 8000, 20% GLYCEROL, VAPOR DIFFUSION, REMARK 280 HANGING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 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 36.69750 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 36.69750 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 40.54950 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 45.51400 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 40.54950 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 45.51400 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 36.69750 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 40.54950 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 45.51400 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 36.69750 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 40.54950 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 45.51400 REMARK 290 SMTRY3 8 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: 2070 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 20250 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -30.0 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 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 36.69750 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 GLU A 149 REMARK 465 LYS A 150 REMARK 465 GLY A 344 REMARK 465 SER A 345 REMARK 465 LEU A 346 REMARK 465 LYS A 347 REMARK 465 THR A 348 REMARK 465 SER A 349 REMARK 465 ALA A 350 REMARK 465 VAL A 351 REMARK 465 PRO A 352 REMARK 465 SER A 353 REMARK 465 THR A 354 REMARK 465 SER A 355 REMARK 465 THR A 356 REMARK 465 MET A 357 REMARK 465 SER A 358 REMARK 465 GLN A 359 REMARK 465 GLU A 360 REMARK 465 PRO A 361 REMARK 465 GLU A 362 REMARK 465 LEU A 363 REMARK 465 LEU A 364 REMARK 465 ILE A 365 REMARK 465 SER A 366 REMARK 465 GLY A 367 REMARK 465 MET A 368 REMARK 465 GLU A 369 REMARK 465 LYS A 370 REMARK 465 PRO A 371 REMARK 465 LEU A 372 REMARK 465 PRO A 373 REMARK 465 LEU A 374 REMARK 465 ARG A 375 REMARK 465 THR A 376 REMARK 465 ASP A 377 REMARK 465 PHE A 378 REMARK 465 SER A 379 REMARK 465 LEU A 380 REMARK 465 GLU A 381 REMARK 465 HIS A 382 REMARK 465 HIS A 383 REMARK 465 HIS A 384 REMARK 465 HIS A 385 REMARK 465 HIS A 386 REMARK 465 HIS A 387 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 OE2 GLU A 174 OH TYR A 240 2.17 REMARK 500 OG SER A 213 O HOH A 505 2.18 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 TYR A 167 -65.65 -137.36 REMARK 500 ALA A 233 -120.54 52.02 REMARK 500 LYS A 236 21.50 -147.75 REMARK 500 GLU A 304 43.10 36.28 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 GLY A 234 ILE A 235 139.33 REMARK 500 ASP A 320 SER A 321 147.38 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 ASP A 205 OD2 REMARK 620 2 GLU A 316 OE2 69.8 REMARK 620 3 GLU A 316 OE1 86.5 43.4 REMARK 620 4 HOH A 535 O 74.3 102.5 68.8 REMARK 620 5 HOH A 537 O 161.5 127.8 110.2 103.6 REMARK 620 N 1 2 3 4 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 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4F5Y RELATED DB: PDB REMARK 999 REMARK 999 SEQUENCE REMARK 999 NATURAL VARIANT AT THIS POSITION DBREF 4F5W A 149 379 UNP Q86WV6 TM173_HUMAN 149 379 SEQADV 4F5W ARG A 232 UNP Q86WV6 HIS 232 SEE REMARK 999 SEQADV 4F5W LEU A 380 UNP Q86WV6 EXPRESSION TAG SEQADV 4F5W GLU A 381 UNP Q86WV6 EXPRESSION TAG SEQADV 4F5W HIS A 382 UNP Q86WV6 EXPRESSION TAG SEQADV 4F5W HIS A 383 UNP Q86WV6 EXPRESSION TAG SEQADV 4F5W HIS A 384 UNP Q86WV6 EXPRESSION TAG SEQADV 4F5W HIS A 385 UNP Q86WV6 EXPRESSION TAG SEQADV 4F5W HIS A 386 UNP Q86WV6 EXPRESSION TAG SEQADV 4F5W HIS A 387 UNP Q86WV6 EXPRESSION TAG SEQRES 1 A 239 GLU LYS GLY ASN PHE ASN VAL ALA HIS GLY LEU ALA TRP SEQRES 2 A 239 SER TYR TYR ILE GLY TYR LEU ARG LEU ILE LEU PRO GLU SEQRES 3 A 239 LEU GLN ALA ARG ILE ARG THR TYR ASN GLN HIS TYR ASN SEQRES 4 A 239 ASN LEU LEU ARG GLY ALA VAL SER GLN ARG LEU TYR ILE SEQRES 5 A 239 LEU LEU PRO LEU ASP CYS GLY VAL PRO ASP ASN LEU SER SEQRES 6 A 239 MET ALA ASP PRO ASN ILE ARG PHE LEU ASP LYS LEU PRO SEQRES 7 A 239 GLN GLN THR GLY ASP ARG ALA GLY ILE LYS ASP ARG VAL SEQRES 8 A 239 TYR SER ASN SER ILE TYR GLU LEU LEU GLU ASN GLY GLN SEQRES 9 A 239 ARG ALA GLY THR CYS VAL LEU GLU TYR ALA THR PRO LEU SEQRES 10 A 239 GLN THR LEU PHE ALA MET SER GLN TYR SER GLN ALA GLY SEQRES 11 A 239 PHE SER ARG GLU ASP ARG LEU GLU GLN ALA LYS LEU PHE SEQRES 12 A 239 CYS ARG THR LEU GLU ASP ILE LEU ALA ASP ALA PRO GLU SEQRES 13 A 239 SER GLN ASN ASN CYS ARG LEU ILE ALA TYR GLN GLU PRO SEQRES 14 A 239 ALA ASP ASP SER SER PHE SER LEU SER GLN GLU VAL LEU SEQRES 15 A 239 ARG HIS LEU ARG GLN GLU GLU LYS GLU GLU VAL THR VAL SEQRES 16 A 239 GLY SER LEU LYS THR SER ALA VAL PRO SER THR SER THR SEQRES 17 A 239 MET SER GLN GLU PRO GLU LEU LEU ILE SER GLY MET GLU SEQRES 18 A 239 LYS PRO LEU PRO LEU ARG THR ASP PHE SER LEU GLU HIS SEQRES 19 A 239 HIS HIS HIS HIS HIS HET CA A 401 1 HETNAM CA CALCIUM ION FORMUL 2 CA CA 2+ FORMUL 3 HOH *37(H2 O) HELIX 1 1 VAL A 155 TYR A 167 1 13 HELIX 2 2 TYR A 167 ARG A 191 1 25 HELIX 3 3 ASN A 211 ALA A 215 5 5 HELIX 4 4 THR A 263 TYR A 274 1 12 HELIX 5 5 SER A 275 GLY A 278 5 4 HELIX 6 6 SER A 280 ASP A 301 1 22 HELIX 7 7 SER A 305 ASN A 307 5 3 HELIX 8 8 SER A 324 VAL A 343 1 20 SHEET 1 A 5 ILE A 219 LYS A 224 0 SHEET 2 A 5 SER A 243 GLU A 249 -1 O ILE A 244 N ASP A 223 SHEET 3 A 5 GLN A 252 TYR A 261 -1 O ALA A 254 N LEU A 247 SHEET 4 A 5 LEU A 198 PRO A 203 1 N LEU A 201 O GLU A 260 SHEET 5 A 5 CYS A 309 TYR A 314 1 O ARG A 310 N ILE A 200 LINK OD2 ASP A 205 CA CA A 401 1555 1555 2.93 LINK OE2 GLU A 316 CA CA A 401 1555 1555 2.99 LINK OE1 GLU A 316 CA CA A 401 1555 1555 3.03 LINK CA CA A 401 O HOH A 535 1555 1555 3.03 LINK CA CA A 401 O HOH A 537 1555 1555 3.10 SITE 1 AC1 5 ASP A 205 GLU A 316 VAL A 341 HOH A 535 SITE 2 AC1 5 HOH A 537 CRYST1 81.099 91.028 73.395 90.00 90.00 90.00 C 2 2 21 8 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 0.012331 0.000000 0.000000 0.00000 SCALE2 0.000000 0.010986 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013625 0.00000