HEADER OXIDOREDUCTASE 06-AUG-96 1XIK TITLE RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE 1 BETA CHAIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN R2 OF RIBONUCLEOTIDE REDUCTASE; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: BETA CHAIN; COMPND 5 SYNONYM: RNR R2; COMPND 6 EC: 1.17.4.1; COMPND 7 ENGINEERED: YES; COMPND 8 OTHER_DETAILS: DIFERROUS FORM OF NON-HEME DINUCLEAR IRON SITE SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: MC1009; SOURCE 7 EXPRESSION_SYSTEM_PLASMID: PGP1-2/PTB2 KEYWDS OXIDOREDUCTASE, DNA REPLICATION, IRON EXPDTA X-RAY DIFFRACTION AUTHOR D.T.LOGAN,X.-D.SU,A.ABERG,K.REGNSTROM,J.HAJDU,H.EKLUND,P.NORDLUND REVDAT 5 22-MAY-24 1XIK 1 REMARK REVDAT 4 09-AUG-23 1XIK 1 REMARK LINK REVDAT 3 24-FEB-09 1XIK 1 VERSN REVDAT 2 01-APR-03 1XIK 1 JRNL REVDAT 1 12-MAR-97 1XIK 0 JRNL AUTH D.T.LOGAN,X.D.SU,A.ABERG,K.REGNSTROM,J.HAJDU,H.EKLUND, JRNL AUTH 2 P.NORDLUND JRNL TITL CRYSTAL STRUCTURE OF REDUCED PROTEIN R2 OF RIBONUCLEOTIDE JRNL TITL 2 REDUCTASE: THE STRUCTURAL BASIS FOR OXYGEN ACTIVATION AT A JRNL TITL 3 DINUCLEAR IRON SITE. JRNL REF STRUCTURE V. 4 1053 1996 JRNL REFN ISSN 0969-2126 JRNL PMID 8805591 JRNL DOI 10.1016/S0969-2126(96)00112-8 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH P.NORDLUND,H.EKLUND REMARK 1 TITL STRUCTURE AND FUNCTION OF THE ESCHERICHIA COLI REMARK 1 TITL 2 RIBONUCLEOTIDE REDUCTASE PROTEIN R2 REMARK 1 REF J.MOL.BIOL. V. 232 123 1993 REMARK 1 REFN ISSN 0022-2836 REMARK 2 REMARK 2 RESOLUTION. 1.70 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : TNT REMARK 3 AUTHORS : TRONRUD,TEN EYCK,MATTHEWS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 15.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 97.0 REMARK 3 NUMBER OF REFLECTIONS : 74858 REMARK 3 REMARK 3 USING DATA ABOVE SIGMA CUTOFF. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.206 REMARK 3 FREE R VALUE : 0.280 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 2.000 REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 USING ALL DATA, NO SIGMA CUTOFF. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.2060 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.280 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 2.00 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 74858 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 5582 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 14 REMARK 3 SOLVENT ATOMS : 326 REMARK 3 REMARK 3 WILSON B VALUE (FROM FCALC, A**2) : 36.300 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. RMS WEIGHT COUNT REMARK 3 BOND LENGTHS (A) : 0.013 ; NULL ; NULL REMARK 3 BOND ANGLES (DEGREES) : 1.900 ; NULL ; NULL REMARK 3 TORSION ANGLES (DEGREES) : 16.300; NULL ; NULL REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TRIGONAL CARBON PLANES (A) : NULL ; NULL ; NULL REMARK 3 GENERAL PLANES (A) : NULL ; NULL ; NULL REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS (A) : NULL ; NULL ; NULL REMARK 3 REMARK 3 INCORRECT CHIRAL-CENTERS (COUNT) : 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 RESTRAINT LIBRARIES. REMARK 3 STEREOCHEMISTRY : NULL REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1XIK COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000177274. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 103 REMARK 200 PH : 6.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MAR SCANNER 300 MM PLATE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : CCP4 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 76518 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.700 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 200 DATA REDUNDANCY : 4.840 REMARK 200 R MERGE (I) : 0.06400 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 5.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.70 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.79 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.7 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.41700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 1.500 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: DIFERRIC FORM OF R2 PROTEIN, PDB ENTRY 1RIB REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 34.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.10 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: HANGING DROP VAPOR DIFFUSION METHOD, REMARK 280 20% PEG 4000, 0.2M NACL, 50MM MES BUFFER PH 6.0, 1MM REMARK 280 ETHYLMERCURY SALICYLATE, VAPOR DIFFUSION - HANGING DROP, VAPOR REMARK 280 DIFFUSION, HANGING DROP 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 36.72000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 56.85000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 41.76500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 56.85000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 36.72000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 41.76500 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: 7010 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 23850 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -227.0 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 SER A 341 REMARK 465 ASP A 342 REMARK 465 ASN A 343 REMARK 465 VAL A 344 REMARK 465 GLN A 345 REMARK 465 VAL A 346 REMARK 465 ALA A 347 REMARK 465 PRO A 348 REMARK 465 GLN A 349 REMARK 465 GLU A 350 REMARK 465 VAL A 351 REMARK 465 GLU A 352 REMARK 465 VAL A 353 REMARK 465 SER A 354 REMARK 465 SER A 355 REMARK 465 TYR A 356 REMARK 465 LEU A 357 REMARK 465 VAL A 358 REMARK 465 GLY A 359 REMARK 465 GLN A 360 REMARK 465 ILE A 361 REMARK 465 ASP A 362 REMARK 465 SER A 363 REMARK 465 GLU A 364 REMARK 465 VAL A 365 REMARK 465 ASP A 366 REMARK 465 THR A 367 REMARK 465 ASP A 368 REMARK 465 ASP A 369 REMARK 465 LEU A 370 REMARK 465 SER A 371 REMARK 465 ASN A 372 REMARK 465 PHE A 373 REMARK 465 GLN A 374 REMARK 465 LEU A 375 REMARK 465 ASP B 342 REMARK 465 ASN B 343 REMARK 465 VAL B 344 REMARK 465 GLN B 345 REMARK 465 VAL B 346 REMARK 465 ALA B 347 REMARK 465 PRO B 348 REMARK 465 GLN B 349 REMARK 465 GLU B 350 REMARK 465 VAL B 351 REMARK 465 GLU B 352 REMARK 465 VAL B 353 REMARK 465 SER B 354 REMARK 465 SER B 355 REMARK 465 TYR B 356 REMARK 465 LEU B 357 REMARK 465 VAL B 358 REMARK 465 GLY B 359 REMARK 465 GLN B 360 REMARK 465 ILE B 361 REMARK 465 ASP B 362 REMARK 465 SER B 363 REMARK 465 GLU B 364 REMARK 465 VAL B 365 REMARK 465 ASP B 366 REMARK 465 THR B 367 REMARK 465 ASP B 368 REMARK 465 ASP B 369 REMARK 465 LEU B 370 REMARK 465 SER B 371 REMARK 465 ASN B 372 REMARK 465 PHE B 373 REMARK 465 GLN B 374 REMARK 465 LEU B 375 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 444 O HOH A 471 2.06 REMARK 500 O HOH A 433 O HOH A 450 2.11 REMARK 500 O HOH A 467 O HOH A 497 2.19 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 ASP A 84 CB - CG - OD1 ANGL. DEV. = 8.8 DEGREES REMARK 500 ASP A 84 CB - CG - OD2 ANGL. DEV. = -5.8 DEGREES REMARK 500 PRO A 133 C - N - CD ANGL. DEV. = -24.6 DEGREES REMARK 500 ARG A 315 NE - CZ - NH1 ANGL. DEV. = 4.0 DEGREES REMARK 500 ARG B 89 NE - CZ - NH2 ANGL. DEV. = -3.2 DEGREES REMARK 500 LEU B 186 CB - CG - CD2 ANGL. DEV. = 10.7 DEGREES 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 ASN A 24 -76.03 -103.43 REMARK 500 ASP A 257 -113.28 -100.30 REMARK 500 PHE A 291 44.11 -90.50 REMARK 500 ILE A 297 32.14 -86.06 REMARK 500 ILE A 332 73.06 -154.43 REMARK 500 PHE B 5 86.32 -158.75 REMARK 500 ASN B 24 -80.44 -107.40 REMARK 500 LEU B 290 -52.23 -29.33 REMARK 500 MET B 296 166.43 -41.08 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 FE2 A 376 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 84 OD1 REMARK 620 2 ASP A 84 OD2 53.5 REMARK 620 3 GLU A 115 OE1 84.9 135.9 REMARK 620 4 HIS A 118 ND1 116.8 95.0 91.4 REMARK 620 5 GLU A 238 OE2 148.8 120.8 102.3 93.6 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FE2 A 377 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 115 OE2 REMARK 620 2 GLU A 204 OE1 122.5 REMARK 620 3 GLU A 238 OE1 125.3 94.4 REMARK 620 4 HIS A 241 ND1 106.5 109.2 95.4 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HG A 380 HG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 TYR A 194 OH REMARK 620 2 CYS A 272 SG 100.4 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HG A 378 HG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 196 SG REMARK 620 2 CYS A 196 O 81.1 REMARK 620 3 HG A 381 HG 42.0 64.5 REMARK 620 4 HOH A 399 O 172.7 96.4 130.7 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HG A 381 HG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 196 SG REMARK 620 2 CYS A 196 O 80.5 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HG A 382 HG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 VAL A 210 O REMARK 620 2 CYS A 214 N 68.9 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HG A 379 HG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 268 O REMARK 620 2 CYS A 268 SG 84.9 REMARK 620 3 CYS A 272 SG 97.5 167.5 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FE2 B 376 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP B 84 OD1 REMARK 620 2 ASP B 84 OD2 51.7 REMARK 620 3 GLU B 115 OE1 92.7 138.6 REMARK 620 4 HIS B 118 ND1 114.7 88.6 89.1 REMARK 620 5 GLU B 238 OE2 149.3 119.7 101.7 92.6 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FE2 B 377 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU B 115 OE2 REMARK 620 2 GLU B 204 OE1 133.6 REMARK 620 3 GLU B 204 OE2 84.5 52.1 REMARK 620 4 GLU B 238 OE1 125.8 83.1 131.2 REMARK 620 5 HIS B 241 ND1 104.8 109.5 118.0 92.4 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HG B 378 HG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 196 O REMARK 620 2 CYS B 196 SG 74.2 REMARK 620 3 HG B 380 HG 56.0 47.0 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HG B 380 HG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 196 O REMARK 620 2 CYS B 196 SG 81.0 REMARK 620 3 HOH B 402 O 107.7 166.1 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HG B 381 HG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 214 O REMARK 620 2 MET B 296 SD 87.0 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HG B 379 HG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 268 O REMARK 620 2 CYS B 268 SG 90.0 REMARK 620 3 CYS B 272 SG 103.8 164.8 REMARK 620 4 HOH B 485 O 83.7 109.8 78.6 REMARK 620 N 1 2 3 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: FE1 REMARK 800 EVIDENCE_CODE: UNKNOWN REMARK 800 SITE_DESCRIPTION: FERROUS FORM OF DIIRON CLUSTER IN CHAIN A. REMARK 800 REMARK 800 SITE_IDENTIFIER: FE2 REMARK 800 EVIDENCE_CODE: UNKNOWN REMARK 800 SITE_DESCRIPTION: FERROUS FORM OF DIIRON CLUSTER IN CHAIN B. REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE2 B 376 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE2 B 377 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE2 A 376 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE2 A 377 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 378 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B 378 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B 379 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC8 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B 380 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC9 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 379 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B 381 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 380 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 381 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 382 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG A 383 DBREF 1XIK A 1 375 UNP P69924 RIR2_ECOLI 1 375 DBREF 1XIK B 1 375 UNP P69924 RIR2_ECOLI 1 375 SEQRES 1 A 375 ALA TYR THR THR PHE SER GLN THR LYS ASN ASP GLN LEU SEQRES 2 A 375 LYS GLU PRO MET PHE PHE GLY GLN PRO VAL ASN VAL ALA SEQRES 3 A 375 ARG TYR ASP GLN GLN LYS TYR ASP ILE PHE GLU LYS LEU SEQRES 4 A 375 ILE GLU LYS GLN LEU SER PHE PHE TRP ARG PRO GLU GLU SEQRES 5 A 375 VAL ASP VAL SER ARG ASP ARG ILE ASP TYR GLN ALA LEU SEQRES 6 A 375 PRO GLU HIS GLU LYS HIS ILE PHE ILE SER ASN LEU LYS SEQRES 7 A 375 TYR GLN THR LEU LEU ASP SER ILE GLN GLY ARG SER PRO SEQRES 8 A 375 ASN VAL ALA LEU LEU PRO LEU ILE SER ILE PRO GLU LEU SEQRES 9 A 375 GLU THR TRP VAL GLU THR TRP ALA PHE SER GLU THR ILE SEQRES 10 A 375 HIS SER ARG SER TYR THR HIS ILE ILE ARG ASN ILE VAL SEQRES 11 A 375 ASN ASP PRO SER VAL VAL PHE ASP ASP ILE VAL THR ASN SEQRES 12 A 375 GLU GLN ILE GLN LYS ARG ALA GLU GLY ILE SER SER TYR SEQRES 13 A 375 TYR ASP GLU LEU ILE GLU MET THR SER TYR TRP HIS LEU SEQRES 14 A 375 LEU GLY GLU GLY THR HIS THR VAL ASN GLY LYS THR VAL SEQRES 15 A 375 THR VAL SER LEU ARG GLU LEU LYS LYS LYS LEU TYR LEU SEQRES 16 A 375 CYS LEU MET SER VAL ASN ALA LEU GLU ALA ILE ARG PHE SEQRES 17 A 375 TYR VAL SER PHE ALA CYS SER PHE ALA PHE ALA GLU ARG SEQRES 18 A 375 GLU LEU MET GLU GLY ASN ALA LYS ILE ILE ARG LEU ILE SEQRES 19 A 375 ALA ARG ASP GLU ALA LEU HIS LEU THR GLY THR GLN HIS SEQRES 20 A 375 MET LEU ASN LEU LEU ARG SER GLY ALA ASP ASP PRO GLU SEQRES 21 A 375 MET ALA GLU ILE ALA GLU GLU CYS LYS GLN GLU CYS TYR SEQRES 22 A 375 ASP LEU PHE VAL GLN ALA ALA GLN GLN GLU LYS ASP TRP SEQRES 23 A 375 ALA ASP TYR LEU PHE ARG ASP GLY SER MET ILE GLY LEU SEQRES 24 A 375 ASN LYS ASP ILE LEU CYS GLN TYR VAL GLU TYR ILE THR SEQRES 25 A 375 ASN ILE ARG MET GLN ALA VAL GLY LEU ASP LEU PRO PHE SEQRES 26 A 375 GLN THR ARG SER ASN PRO ILE PRO TRP ILE ASN THR TRP SEQRES 27 A 375 LEU VAL SER ASP ASN VAL GLN VAL ALA PRO GLN GLU VAL SEQRES 28 A 375 GLU VAL SER SER TYR LEU VAL GLY GLN ILE ASP SER GLU SEQRES 29 A 375 VAL ASP THR ASP ASP LEU SER ASN PHE GLN LEU SEQRES 1 B 375 ALA TYR THR THR PHE SER GLN THR LYS ASN ASP GLN LEU SEQRES 2 B 375 LYS GLU PRO MET PHE PHE GLY GLN PRO VAL ASN VAL ALA SEQRES 3 B 375 ARG TYR ASP GLN GLN LYS TYR ASP ILE PHE GLU LYS LEU SEQRES 4 B 375 ILE GLU LYS GLN LEU SER PHE PHE TRP ARG PRO GLU GLU SEQRES 5 B 375 VAL ASP VAL SER ARG ASP ARG ILE ASP TYR GLN ALA LEU SEQRES 6 B 375 PRO GLU HIS GLU LYS HIS ILE PHE ILE SER ASN LEU LYS SEQRES 7 B 375 TYR GLN THR LEU LEU ASP SER ILE GLN GLY ARG SER PRO SEQRES 8 B 375 ASN VAL ALA LEU LEU PRO LEU ILE SER ILE PRO GLU LEU SEQRES 9 B 375 GLU THR TRP VAL GLU THR TRP ALA PHE SER GLU THR ILE SEQRES 10 B 375 HIS SER ARG SER TYR THR HIS ILE ILE ARG ASN ILE VAL SEQRES 11 B 375 ASN ASP PRO SER VAL VAL PHE ASP ASP ILE VAL THR ASN SEQRES 12 B 375 GLU GLN ILE GLN LYS ARG ALA GLU GLY ILE SER SER TYR SEQRES 13 B 375 TYR ASP GLU LEU ILE GLU MET THR SER TYR TRP HIS LEU SEQRES 14 B 375 LEU GLY GLU GLY THR HIS THR VAL ASN GLY LYS THR VAL SEQRES 15 B 375 THR VAL SER LEU ARG GLU LEU LYS LYS LYS LEU TYR LEU SEQRES 16 B 375 CYS LEU MET SER VAL ASN ALA LEU GLU ALA ILE ARG PHE SEQRES 17 B 375 TYR VAL SER PHE ALA CYS SER PHE ALA PHE ALA GLU ARG SEQRES 18 B 375 GLU LEU MET GLU GLY ASN ALA LYS ILE ILE ARG LEU ILE SEQRES 19 B 375 ALA ARG ASP GLU ALA LEU HIS LEU THR GLY THR GLN HIS SEQRES 20 B 375 MET LEU ASN LEU LEU ARG SER GLY ALA ASP ASP PRO GLU SEQRES 21 B 375 MET ALA GLU ILE ALA GLU GLU CYS LYS GLN GLU CYS TYR SEQRES 22 B 375 ASP LEU PHE VAL GLN ALA ALA GLN GLN GLU LYS ASP TRP SEQRES 23 B 375 ALA ASP TYR LEU PHE ARG ASP GLY SER MET ILE GLY LEU SEQRES 24 B 375 ASN LYS ASP ILE LEU CYS GLN TYR VAL GLU TYR ILE THR SEQRES 25 B 375 ASN ILE ARG MET GLN ALA VAL GLY LEU ASP LEU PRO PHE SEQRES 26 B 375 GLN THR ARG SER ASN PRO ILE PRO TRP ILE ASN THR TRP SEQRES 27 B 375 LEU VAL SER ASP ASN VAL GLN VAL ALA PRO GLN GLU VAL SEQRES 28 B 375 GLU VAL SER SER TYR LEU VAL GLY GLN ILE ASP SER GLU SEQRES 29 B 375 VAL ASP THR ASP ASP LEU SER ASN PHE GLN LEU HET FE2 A 376 1 HET FE2 A 377 1 HET HG A 378 1 HET HG A 379 1 HET HG A 380 1 HET HG A 381 1 HET HG A 382 1 HET HG A 383 1 HET FE2 B 376 1 HET FE2 B 377 1 HET HG B 378 1 HET HG B 379 1 HET HG B 380 1 HET HG B 381 1 HETNAM FE2 FE (II) ION HETNAM HG MERCURY (II) ION FORMUL 3 FE2 4(FE 2+) FORMUL 5 HG 10(HG 2+) FORMUL 17 HOH *326(H2 O) HELIX 1 1 GLN A 12 LYS A 14 5 3 HELIX 2 2 ASP A 34 PHE A 46 1 13 HELIX 3 3 PRO A 50 GLU A 52 5 3 HELIX 4 4 SER A 56 ALA A 64 1 9 HELIX 5 5 GLU A 67 LEU A 98 1 32 HELIX 6 6 PRO A 102 ASN A 128 1 27 HELIX 7 7 PRO A 133 VAL A 141 1 9 HELIX 8 8 GLU A 144 ARG A 149 1 6 HELIX 9 9 ILE A 153 LEU A 170 1 18 HELIX 10 10 LEU A 186 ALA A 205 1 20 HELIX 11 11 ARG A 207 ARG A 221 1 15 HELIX 12 12 GLU A 225 ARG A 253 1 29 HELIX 13 13 PRO A 259 GLU A 267 1 9 HELIX 14 14 LYS A 269 LEU A 290 1 22 HELIX 15 15 LYS A 301 ALA A 318 1 18 HELIX 16 16 PRO A 333 LEU A 339 5 7 HELIX 17 17 GLN B 12 LYS B 14 5 3 HELIX 18 18 ASP B 34 PHE B 46 1 13 HELIX 19 19 PRO B 50 GLU B 52 5 3 HELIX 20 20 SER B 56 ALA B 64 5 9 HELIX 21 21 GLU B 67 LEU B 98 1 32 HELIX 22 22 PRO B 102 ILE B 129 1 28 HELIX 23 23 PRO B 133 ASP B 139 1 7 HELIX 24 24 GLU B 144 ARG B 149 1 6 HELIX 25 25 ILE B 153 LEU B 170 1 18 HELIX 26 26 LEU B 186 ALA B 205 1 20 HELIX 27 27 ARG B 207 GLU B 220 1 14 HELIX 28 28 GLU B 225 SER B 254 1 30 HELIX 29 29 PRO B 259 GLU B 267 1 9 HELIX 30 30 LYS B 269 LEU B 290 1 22 HELIX 31 31 LYS B 301 VAL B 319 1 19 HELIX 32 32 PRO B 333 THR B 337 5 5 SHEET 1 A 2 GLY A 173 VAL A 177 0 SHEET 2 A 2 LYS A 180 VAL A 184 -1 N VAL A 184 O GLY A 173 SHEET 1 B 2 GLY B 173 VAL B 177 0 SHEET 2 B 2 LYS B 180 VAL B 184 -1 N VAL B 184 O GLY B 173 LINK OD1 ASP A 84 FE FE2 A 376 1555 1555 1.65 LINK OD2 ASP A 84 FE FE2 A 376 1555 1555 2.74 LINK OE1 GLU A 115 FE FE2 A 376 1555 1555 1.99 LINK OE2 GLU A 115 FE FE2 A 377 1555 1555 1.95 LINK ND1 HIS A 118 FE FE2 A 376 1555 1555 2.00 LINK OH TYR A 194 HG HG A 380 1555 1555 3.46 LINK SG CYS A 196 HG HG A 378 1555 1555 2.26 LINK O CYS A 196 HG HG A 378 1555 1555 3.16 LINK SG CYS A 196 HG HG A 381 1555 1555 2.04 LINK O CYS A 196 HG HG A 381 1555 1555 3.31 LINK OE1 GLU A 204 FE FE2 A 377 1555 1555 2.16 LINK O VAL A 210 HG HG A 382 1555 1555 2.98 LINK N CYS A 214 HG HG A 382 1555 1555 3.27 LINK O CYS A 214 HG HG A 383 1555 1555 2.77 LINK OE2 GLU A 238 FE FE2 A 376 1555 1555 1.67 LINK OE1 GLU A 238 FE FE2 A 377 1555 1555 1.77 LINK ND1 HIS A 241 FE FE2 A 377 1555 1555 2.02 LINK O CYS A 268 HG HG A 379 1555 1555 2.93 LINK SG CYS A 268 HG HG A 379 1555 1555 2.65 LINK SG CYS A 272 HG HG A 379 1555 1555 2.20 LINK SG CYS A 272 HG HG A 380 1555 1555 3.15 LINK HG HG A 378 HG HG A 381 1555 1555 3.04 LINK HG HG A 378 O HOH A 399 1555 1555 2.54 LINK OD1 ASP B 84 FE FE2 B 376 1555 1555 1.96 LINK OD2 ASP B 84 FE FE2 B 376 1555 1555 2.73 LINK OE1 GLU B 115 FE FE2 B 376 1555 1555 2.16 LINK OE2 GLU B 115 FE FE2 B 377 1555 1555 2.13 LINK ND1 HIS B 118 FE FE2 B 376 1555 1555 2.07 LINK O CYS B 196 HG HG B 378 1555 1555 3.18 LINK SG CYS B 196 HG HG B 378 1555 1555 2.18 LINK O CYS B 196 HG HG B 380 1555 1555 2.89 LINK SG CYS B 196 HG HG B 380 1555 1555 2.17 LINK OE1 GLU B 204 FE FE2 B 377 1555 1555 2.40 LINK OE2 GLU B 204 FE FE2 B 377 1555 1555 2.51 LINK O CYS B 214 HG HG B 381 1555 1555 3.09 LINK OE2 GLU B 238 FE FE2 B 376 1555 1555 1.78 LINK OE1 GLU B 238 FE FE2 B 377 1555 1555 1.80 LINK ND1 HIS B 241 FE FE2 B 377 1555 1555 2.04 LINK O CYS B 268 HG HG B 379 1555 1555 2.80 LINK SG CYS B 268 HG HG B 379 1555 1555 2.19 LINK SG CYS B 272 HG HG B 379 1555 1555 2.18 LINK SD MET B 296 HG HG B 381 1555 1555 3.17 LINK HG HG B 378 HG HG B 380 1555 1555 2.96 LINK HG HG B 379 O HOH B 485 1555 1555 2.94 LINK HG HG B 380 O HOH B 402 1555 1555 2.27 SITE 1 FE1 8 ASP A 84 GLU A 115 HIS A 118 GLU A 204 SITE 2 FE1 8 GLU A 238 HIS A 241 FE2 A 376 FE2 A 377 SITE 1 FE2 8 ASP B 84 GLU B 115 HIS B 118 GLU B 204 SITE 2 FE2 8 GLU B 238 HIS B 241 FE2 B 376 FE2 B 377 SITE 1 AC1 5 ASP B 84 GLU B 115 HIS B 118 PHE B 208 SITE 2 AC1 5 GLU B 238 SITE 1 AC2 5 TRP B 111 GLU B 115 GLU B 204 GLU B 238 SITE 2 AC2 5 HIS B 241 SITE 1 AC3 5 ASP A 84 GLU A 115 HIS A 118 PHE A 208 SITE 2 AC3 5 GLU A 238 SITE 1 AC4 4 GLU A 115 GLU A 204 GLU A 238 HIS A 241 SITE 1 AC5 6 TYR A 156 TYR A 157 CYS A 196 VAL A 200 SITE 2 AC5 6 HG A 381 HOH A 399 SITE 1 AC6 4 TYR B 157 CYS B 196 VAL B 200 HG B 380 SITE 1 AC7 5 TYR B 194 LEU B 195 CYS B 268 CYS B 272 SITE 2 AC7 5 HOH B 485 SITE 1 AC8 6 TYR B 156 TYR B 157 CYS B 196 VAL B 200 SITE 2 AC8 6 HG B 378 HOH B 402 SITE 1 AC9 4 TYR A 194 LEU A 195 CYS A 268 CYS A 272 SITE 1 BC1 4 ILE B 72 CYS B 214 PHE B 218 MET B 296 SITE 1 BC2 3 TYR A 194 ALA A 265 CYS A 272 SITE 1 BC3 5 TYR A 157 CYS A 196 LEU A 197 VAL A 200 SITE 2 BC3 5 HG A 378 SITE 1 BC4 4 VAL A 210 ALA A 213 CYS A 214 LEU A 304 SITE 1 BC5 4 ILE A 72 CYS A 214 PHE A 218 LEU A 299 CRYST1 73.440 83.530 113.700 90.00 90.00 90.00 P 21 21 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 0.013617 0.000000 0.000000 0.00000 SCALE2 0.000000 0.011972 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008795 0.00000 MTRIX1 1 -0.822781 0.553386 0.129596 20.75300 1 MTRIX2 1 0.549106 0.715127 0.432522 -25.55900 1 MTRIX3 1 0.146674 0.427033 -0.892261 76.11300 1