PDB Short entry for 1F0C HEADER VIRAL PROTEIN 15-MAY-00 1F0C TITLE STRUCTURE OF THE VIRAL SERPIN CRMA COMPND MOL_ID: 1; COMPND 2 MOLECULE: ICE INHIBITOR; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: RESIDUES 1-305; COMPND 5 SYNONYM: CYTOKINE RESPONSE MODIFIER PROTEIN, CRMA; COMPND 6 ENGINEERED: YES; COMPND 7 MOL_ID: 2; COMPND 8 MOLECULE: ICE INHIBITOR; COMPND 9 CHAIN: B; COMPND 10 FRAGMENT: RESIDUES 306-341; COMPND 11 SYNONYM: CYTOKINE RESPONSE MODIFIER PROTEIN, CRMA; COMPND 12 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: COWPOX VIRUS; SOURCE 3 ORGANISM_TAXID: 10243; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 5 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET23D; SOURCE 9 MOL_ID: 2; SOURCE 10 ORGANISM_SCIENTIFIC: COWPOX VIRUS; SOURCE 11 ORGANISM_TAXID: 10243; SOURCE 12 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 13 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 14 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 15 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 16 EXPRESSION_SYSTEM_PLASMID: PET23D KEYWDS APOPTOSIS, CASPASE INHIBITOR, PROTEASE INHIBITOR, SERPIN, VIRAL KEYWDS 2 PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR M.RENATUS,Q.ZHOU,H.R.STENNICKE,S.J.SNIPAS,D.TURK,L.A.BANKSTON, AUTHOR 2 R.C.LIDDINGTON,G.S.SALVESEN REVDAT 3 04-OCT-17 1F0C 1 REMARK REVDAT 2 24-FEB-09 1F0C 1 VERSN REVDAT 1 06-SEP-00 1F0C 0 JRNL AUTH M.RENATUS,Q.ZHOU,H.R.STENNICKE,S.J.SNIPAS,D.TURK, JRNL AUTH 2 L.A.BANKSTON,R.C.LIDDINGTON,G.S.SALVESEN JRNL TITL CRYSTAL STRUCTURE OF THE APOPTOTIC SUPPRESSOR CRMA IN ITS JRNL TITL 2 CLEAVED FORM. JRNL REF STRUCTURE FOLD.DES. V. 8 789 2000 JRNL REFN ISSN 0969-2126 JRNL PMID 10903953 JRNL DOI 10.1016/S0969-2126(00)00165-9 REMARK 2 REMARK 2 RESOLUTION. 2.26 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) : 2.26 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 500.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 21293 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.228 REMARK 3 FREE R VALUE : 0.272 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 2100 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 : 2601 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 8 REMARK 3 SOLVENT ATOMS : 167 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 35.90 REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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) : 0.015 REMARK 3 BOND ANGLES (DEGREES) : 1.720 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 1F0C COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 23-MAY-00. REMARK 100 THE DEPOSITION ID IS D_1000011088. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 23-SEP-99 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X25 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.15 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : BRANDEIS - B4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MADNESS REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 21897 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.260 REMARK 200 RESOLUTION RANGE LOW (A) : 35.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.2 REMARK 200 DATA REDUNDANCY : 3.500 REMARK 200 R MERGE (I) : 0.05100 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 26.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.26 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.31 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.1 REMARK 200 DATA REDUNDANCY IN SHELL : 2.90 REMARK 200 R MERGE FOR SHELL (I) : 0.28100 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: NULL REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 58.93 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.00 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M NA-ACETATE, 15% PEG 4000, 0.1 M REMARK 280 MGCL2, VAPOR DIFFUSION, TEMPERATURE 296K 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 24.60150 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 50.22700 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 46.22750 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 50.22700 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 24.60150 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 46.22750 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: 5000 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 14260 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -37.0 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 LYS A 95 REMARK 465 GLU A 96 REMARK 465 ALA A 97 REMARK 465 ASP A 98 REMARK 465 LYS A 99 REMARK 465 ASN A 100 REMARK 465 LYS A 101 REMARK 465 ASP A 102 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 81 O REMARK 470 ALA A 359 O REMARK 470 ASN B 394 O REMARK 475 REMARK 475 ZERO OCCUPANCY RESIDUES REMARK 475 THE FOLLOWING RESIDUES WERE MODELED WITH ZERO OCCUPANCY. REMARK 475 THE LOCATION AND PROPERTIES OF THESE RESIDUES MAY NOT REMARK 475 BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 475 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE) REMARK 475 M RES C SSEQI REMARK 475 THR B 393 REMARK 475 ASN B 394 REMARK 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 LYS A 78 CG CD CE NZ REMARK 480 ARG A 132 CB CG CD NE CZ NH1 NH2 REMARK 480 GLU A 201 CG CD OE1 OE2 REMARK 480 ASP A 357 CB CG OD1 OD2 REMARK 480 THR B 359B CB OG1 CG2 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 MET A 45 41.32 -140.37 REMARK 500 LYS A 46 135.04 -38.48 REMARK 500 ASP A 136 19.69 -68.09 REMARK 500 ASN A 170 113.90 -163.40 REMARK 500 SER A 314 -57.11 -15.82 REMARK 500 SER A 325 -173.37 -52.84 REMARK 500 ALA A 331 148.28 -177.92 REMARK 500 ALA A 356 -160.37 -124.85 REMARK 500 ASP A 357 98.56 68.80 REMARK 500 CYS A 358 -14.72 -159.42 REMARK 500 THR B 359B 146.26 74.75 REMARK 500 THR B 361 19.79 -161.79 REMARK 500 ASN B 362 -31.10 -130.92 REMARK 500 THR B 393 -149.21 51.13 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DTT A 360 DBREF 1F0C A 35 359 UNP P07385 SPI2_CWPXB 1 305 DBREF 1F0C B 359A 394 UNP P07385 SPI2_CWPXB 306 341 SEQRES 1 A 305 MET ASP ILE PHE ARG GLU ILE ALA SER SER MET LYS GLY SEQRES 2 A 305 GLU ASN VAL PHE ILE SER PRO PRO SER ILE SER SER VAL SEQRES 3 A 305 LEU THR ILE LEU TYR TYR GLY ALA ASN GLY SER THR ALA SEQRES 4 A 305 GLU GLN LEU SER LYS TYR VAL GLU LYS GLU ALA ASP LYS SEQRES 5 A 305 ASN LYS ASP ASP ILE SER PHE LYS SER MET ASN LYS VAL SEQRES 6 A 305 TYR GLY ARG TYR SER ALA VAL PHE LYS ASP SER PHE LEU SEQRES 7 A 305 ARG LYS ILE GLY ASP ASN PHE GLN THR VAL ASP PHE THR SEQRES 8 A 305 ASP CYS ARG THR VAL ASP ALA ILE ASN LYS CYS VAL ASP SEQRES 9 A 305 ILE PHE THR GLU GLY LYS ILE ASN PRO LEU LEU ASP GLU SEQRES 10 A 305 PRO LEU SER PRO ASP THR CYS LEU LEU ALA ILE SER ALA SEQRES 11 A 305 VAL TYR PHE LYS ALA LYS TRP LEU MET PRO PHE GLU LYS SEQRES 12 A 305 GLU PHE THR SER ASP TYR PRO PHE TYR VAL SER PRO THR SEQRES 13 A 305 GLU MET VAL ASP VAL SER MET MET SER MET TYR GLY GLU SEQRES 14 A 305 ALA PHE ASN HIS ALA SER VAL LYS GLU SER PHE GLY ASN SEQRES 15 A 305 PHE SER ILE ILE GLU LEU PRO TYR VAL GLY ASP THR SER SEQRES 16 A 305 MET VAL VAL ILE LEU PRO ASP ASN ILE ASP GLY LEU GLU SEQRES 17 A 305 SER ILE GLU GLN ASN LEU THR ASP THR ASN PHE LYS LYS SEQRES 18 A 305 TRP CYS ASP SER MET ASP ALA MET PHE ILE ASP VAL HIS SEQRES 19 A 305 ILE PRO LYS PHE LYS VAL THR GLY SER TYR ASN LEU VAL SEQRES 20 A 305 ASP ALA LEU VAL LYS LEU GLY LEU THR GLU VAL PHE GLY SEQRES 21 A 305 SER THR GLY ASP TYR SER ASN MET CYS ASN SER ASP VAL SEQRES 22 A 305 SER VAL ASP ALA MET ILE HIS LYS THR TYR ILE ASP VAL SEQRES 23 A 305 ASN GLU GLU TYR THR GLU ALA ALA ALA ALA THR CYS ALA SEQRES 24 A 305 LEU VAL ALA ASP CYS ALA SEQRES 1 B 36 SER THR VAL THR ASN GLU PHE CYS ALA ASP HIS PRO PHE SEQRES 2 B 36 ILE TYR VAL ILE ARG HIS VAL ASP GLY LYS ILE LEU PHE SEQRES 3 B 36 VAL GLY ARG TYR CYS SER PRO THR THR ASN HET DTT A 360 8 HETNAM DTT 2,3-DIHYDROXY-1,4-DITHIOBUTANE HETSYN DTT 1,4-DITHIOTHREITOL FORMUL 3 DTT C4 H10 O2 S2 FORMUL 4 HOH *167(H2 O) HELIX 1 1 MET A 35 SER A 44 1 10 HELIX 2 2 SER A 53 ALA A 68 1 16 HELIX 3 3 GLY A 70 LYS A 78 1 9 HELIX 4 4 LYS A 127 GLY A 135 1 9 HELIX 5 5 CYS A 151 THR A 165 1 15 HELIX 6 6 GLU A 199 THR A 203 5 5 HELIX 7 7 GLY A 259 GLN A 265 1 7 HELIX 8 8 THR A 268 SER A 278 1 11 HELIX 9 9 LEU A 299 LEU A 306 1 8 SHEET 1 A 4 GLU B 363 CYS B 365 0 SHEET 2 A 4 ASP A 280 PRO A 289 1 O ASP A 285 N PHE B 364 SHEET 3 A 4 GLU A 214 VAL A 232 -1 N MET A 221 O ILE A 288 SHEET 4 A 4 SER A 204 SER A 211 -1 O SER A 204 N MET A 220 SHEET 1 B 8 GLU B 363 CYS B 365 0 SHEET 2 B 8 ASP A 280 PRO A 289 1 O ASP A 285 N PHE B 364 SHEET 3 B 8 GLU A 214 VAL A 232 -1 N MET A 221 O ILE A 288 SHEET 4 B 8 PHE A 237 PRO A 243 -1 O PHE A 237 N VAL A 232 SHEET 5 B 8 THR A 248 PRO A 255 -1 N MET A 250 O LEU A 242 SHEET 6 B 8 PHE B 370 HIS B 376 -1 O ILE B 371 N ILE A 253 SHEET 7 B 8 ILE B 382 TYR B 388 -1 N LEU B 383 O ILE B 374 SHEET 8 B 8 VAL A 50 ILE A 52 -1 O VAL A 50 N ARG B 387 SHEET 1 C 6 PHE A 142 VAL A 145 0 SHEET 2 C 6 PHE A 112 ARG A 121 1 O VAL A 118 N GLN A 143 SHEET 3 C 6 THR A 180 LYS A 193 -1 O CYS A 181 N ARG A 121 SHEET 4 C 6 TYR A 344 ALA A 356 -1 N THR A 345 O ALA A 192 SHEET 5 C 6 SER A 328 VAL A 340 -1 O SER A 328 N ALA A 356 SHEET 6 C 6 PHE A 291 ASN A 298 -1 O PHE A 291 N VAL A 340 CISPEP 1 ASN A 170 PRO A 171 0 0.10 SITE 1 AC1 4 ASP A 258 LEU A 260 PRO B 369 CYS B 389 CRYST1 49.203 92.455 100.454 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 0.020324 0.000000 0.000000 0.00000 SCALE2 0.000000 0.010816 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009955 0.00000