PDB Short entry for 1BQ9 HEADER METAL BINDING PROTEIN 22-AUG-98 1BQ9 TITLE RUBREDOXIN (FORMYL METHIONINE MUTANT) FROM PYROCOCCUS FURIOSUS COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (RUBREDOXIN); COMPND 3 CHAIN: A; COMPND 4 SYNONYM: PF RD; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PYROCOCCUS FURIOSUS; SOURCE 3 ORGANISM_TAXID: 2261; SOURCE 4 VARIANT: FMET; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 OTHER_DETAILS: PRODUCT OF A SYNTHETIC PF RD GENE KEYWDS IRON-SULFUR PROTEIN, HIGH-RESOLUTION STRUCTURE, METAL BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR R.BAU,D.C.REES,D.M.KURTZ,R.A.SCOTT,H.HUANG,M.W.W.ADAMS,M.K.EIDSNESS REVDAT 5 21-DEC-22 1BQ9 1 REMARK SEQADV LINK REVDAT 4 04-OCT-17 1BQ9 1 REMARK REVDAT 3 24-FEB-09 1BQ9 1 VERSN REVDAT 2 29-DEC-99 1BQ9 4 HEADER COMPND REMARK JRNL REVDAT 2 2 4 ATOM SOURCE SEQRES REVDAT 1 26-AUG-98 1BQ9 0 JRNL AUTH R.BAU,D.C.REES,D.M.KURTZ,R.A.SCOTT,H.HUANG,M.W.W.ADAMS, JRNL AUTH 2 M.K.EIDSNESS JRNL TITL CRYSTAL STRUCTURE OF RUBREDOXIN FROM PYROCOCCUS FURIOSUS AT JRNL TITL 2 0.95 ANGSTROMS RESOLUTION, AND THE STRUCTURES OF N-TERMINAL JRNL TITL 3 METHIONINE AND FORMYLMETHIONINE VARIANTS OF PF RD. JRNL TITL 4 CONTRIBUTIONS OF N-TERMINAL INTERACTIONS TO THERMOSTABILITY JRNL REF J.BIOL.INORG.CHEM. V. 3 484 1998 JRNL REFN ISSN 0949-8257 REMARK 2 REMARK 2 RESOLUTION. 1.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 50.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 97.5 REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : EVERY 10TH REFLECTION REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.137 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.166 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 14030 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : NULL REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.133 REMARK 3 FREE R VALUE (F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 12478 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 423 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 159 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : NULL REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : NULL REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 7 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 4664 REMARK 3 NUMBER OF RESTRAINTS : 5076 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.022 REMARK 3 ANGLE DISTANCES (A) : 0.022 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : NULL REMARK 3 ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 2.600 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : NULL REMARK 3 SIMILAR ADP COMPONENTS (A**2) : NULL REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : NULL REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: ANISOTROPIC C,N,O,S,FE ATOMS B23 (A**2) REMARK 3 : ESTIMATED OVERALL COORDINATE ERROR. REMARK 4 REMARK 4 1BQ9 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB. REMARK 100 THE DEPOSITION ID IS D_1000008026. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 123 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : SIEMENS X-1000 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XSCALE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 15400 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.200 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 (%) : 97.5 REMARK 200 DATA REDUNDANCY : 5.600 REMARK 200 R MERGE (I) : 0.06000 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.40 REMARK 200 COMPLETENESS FOR SHELL (%) : 83.8 REMARK 200 DATA REDUNDANCY IN SHELL : 3.00 REMARK 200 R MERGE FOR SHELL (I) : 0.16600 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: OTHER REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: KNOWN STRUCTURE (SEE TEXT) REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 41.49 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.10 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: VAPOR DIFFUSION AGAINST 3.6M NA,K REMARK 280 PHOSPHATE, PH 8.5, VAPOR DIFFUSION 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 17.01450 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 21.73500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 17.23700 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 21.73500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 17.01450 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 17.23700 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 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 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 OD2 ASP A 16 OD2 ASP A 54 2655 1.83 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 GLU A 32 CG GLU A 32 CD 0.500 REMARK 500 GLU A 32 CD GLU A 32 OE1 0.603 REMARK 500 GLU A 32 CD GLU A 32 OE2 0.857 REMARK 500 ASP A 36 CB ASP A 36 CG 0.220 REMARK 500 ASP A 36 CG ASP A 36 OD1 0.827 REMARK 500 GLU A 50 CB GLU A 50 CG -0.369 REMARK 500 GLU A 50 CG GLU A 50 CD 1.210 REMARK 500 GLU A 50 CD GLU A 50 OE1 0.874 REMARK 500 GLU A 50 CD GLU A 50 OE2 -0.101 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 ILE A 8 CB - CG1 - CD1 ANGL. DEV. = -21.2 DEGREES REMARK 500 GLU A 32 OE1 - CD - OE2 ANGL. DEV. = -30.6 DEGREES REMARK 500 GLU A 32 CG - CD - OE1 ANGL. DEV. = 29.8 DEGREES REMARK 500 ASP A 36 OD1 - CG - OD2 ANGL. DEV. = -23.5 DEGREES REMARK 500 ASP A 36 CB - CG - OD1 ANGL. DEV. = 44.9 DEGREES REMARK 500 ASP A 36 CB - CG - OD2 ANGL. DEV. = -28.3 DEGREES REMARK 500 ILE A 41 CB - CG1 - CD1 ANGL. DEV. = -19.0 DEGREES REMARK 500 GLU A 50 CA - CB - CG ANGL. DEV. = -15.5 DEGREES REMARK 500 GLU A 50 OE1 - CD - OE2 ANGL. DEV. = -7.7 DEGREES REMARK 500 GLU A 50 CG - CD - OE1 ANGL. DEV. = -50.9 DEGREES REMARK 500 GLU A 50 CG - CD - OE2 ANGL. DEV. = -36.8 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 ASP A 19 68.22 -157.31 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 GLU A 32 0.11 SIDE CHAIN REMARK 500 ASP A 36 0.08 SIDE CHAIN REMARK 500 GLU A 50 0.29 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY REMARK 500 REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 500 I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI ANGLE REMARK 500 GLY A 27 -12.90 REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN REMARK 600 REMARK 600 FME IS IN HET DICTIONARY REMARK 600 REMARK 600 FE OF FES4 UNIT 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 FE A 55 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 6 SG REMARK 620 2 CYS A 9 SG 113.0 REMARK 620 3 CYS A 39 SG 111.6 102.6 REMARK 620 4 CYS A 42 SG 104.0 113.4 112.5 REMARK 620 N 1 2 3 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE A 55 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1CAA RELATED DB: PDB REMARK 900 RELATED ID: 1BQ8 RELATED DB: PDB DBREF 1BQ9 A 1 54 UNP P24297 RUBR_PYRFU 1 54 SEQADV 1BQ9 FME A 1 UNP P24297 MET 1 MODIFIED RESIDUE SEQRES 1 A 54 FME ALA LYS TRP VAL CYS LYS ILE CYS GLY TYR ILE TYR SEQRES 2 A 54 ASP GLU ASP ALA GLY ASP PRO ASP ASN GLY ILE SER PRO SEQRES 3 A 54 GLY THR LYS PHE GLU GLU LEU PRO ASP ASP TRP VAL CYS SEQRES 4 A 54 PRO ILE CYS GLY ALA PRO LYS SER GLU PHE GLU LYS LEU SEQRES 5 A 54 GLU ASP MODRES 1BQ9 FME A 1 MET N-FORMYLMETHIONINE HET FME A 1 10 HET FE A 55 1 HETNAM FME N-FORMYLMETHIONINE HETNAM FE FE (III) ION FORMUL 1 FME C6 H11 N O3 S FORMUL 2 FE FE 3+ FORMUL 3 HOH *159(H2 O) HELIX 1 1 PRO A 20 ASN A 22 5 3 HELIX 2 2 PHE A 30 GLU A 32 5 3 HELIX 3 3 LYS A 46 GLU A 48 5 3 SHEET 1 A 3 ILE A 12 ASP A 14 0 SHEET 2 A 3 LYS A 3 CYS A 6 -1 N TRP A 4 O TYR A 13 SHEET 3 A 3 PHE A 49 LYS A 51 -1 N GLU A 50 O VAL A 5 LINK C FME A 1 N ALA A 2 1555 1555 1.30 LINK SG CYS A 6 FE FE A 55 1555 1555 2.27 LINK SG CYS A 9 FE FE A 55 1555 1555 2.26 LINK SG CYS A 39 FE FE A 55 1555 1555 2.29 LINK SG CYS A 42 FE FE A 55 1555 1555 2.26 SITE 1 AC1 4 CYS A 6 CYS A 9 CYS A 39 CYS A 42 CRYST1 34.029 34.474 43.470 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 0.029387 0.000000 0.000000 0.00000 SCALE2 0.000000 0.029007 0.000000 0.00000 SCALE3 0.000000 0.000000 0.023004 0.00000 HETATM 1 N FME A 1 23.447 -5.765 5.119 1.00 19.07 N HETATM 2 CN FME A 1 23.308 -6.776 4.291 1.00 20.46 C HETATM 3 O1 FME A 1 22.504 -6.713 3.357 1.00 24.75 O HETATM 4 CA FME A 1 22.488 -4.745 5.410 1.00 18.15 C HETATM 5 CB FME A 1 22.433 -4.342 6.827 1.00 21.15 C HETATM 6 CG FME A 1 22.198 -5.618 7.751 1.00 22.84 C HETATM 7 SD FME A 1 20.445 -6.032 7.772 1.00 23.40 S HETATM 8 CE FME A 1 20.476 -7.587 8.656 1.00 28.76 C HETATM 9 C FME A 1 22.699 -3.530 4.487 1.00 17.12 C HETATM 10 O FME A 1 23.804 -3.248 4.077 1.00 20.25 O