1R94 - Header Asymmetric Unit

HEADER METAL TRANSPORT 28-OCT-03 1R94

TITLE CRYSTAL STRUCTURE OF ISCA (MERCURY DERIVATIVE)

COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN YFHF; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: YFHF, B2528, C3053, Z3795, ECS3394, SF2575, S2747; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562

KEYWDS TETRAMERIC, BETA BARREL, IRON-SULFUR CLUSTER PROTEIN, KEYWDS 2 PSEUDO-SYMMETRIC MOTIFS, METAL TRANSPORT

EXPDTA X-RAY DIFFRACTION

AUTHOR P.W.BILDER,H.DING,M.E.NEWCOMER

REVDAT 3 24-FEB-09 1R94 1 VERSN REVDAT 2 30-MAR-04 1R94 1 JRNL REVDAT 1 23-DEC-03 1R94 0

JRNL AUTH P.W.BILDER,H.DING,M.E.NEWCOMER JRNL TITL CRYSTAL STRUCTURE OF THE ANCIENT, FE-S SCAFFOLD JRNL TITL 2 ISCA REVEALS A NOVEL PROTEIN FOLD. JRNL REF BIOCHEMISTRY V. 43 133 2004 JRNL REFN ISSN 0006-2960 JRNL PMID 14705938

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. 2.30 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.1.24 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 27.22 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 95.2 REMARK 3 NUMBER OF REFLECTIONS : 11110 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING + TEST SET) : 0.231 REMARK 3 R VALUE (WORKING SET) : 0.229 REMARK 3 FREE R VALUE : 0.263 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 580 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.30 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.36 REMARK 3 REFLECTION IN BIN (WORKING SET) : 696 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.3040 REMARK 3 BIN FREE R VALUE SET COUNT : 32 REMARK 3 BIN FREE R VALUE : 0.3910 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1470 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 2 REMARK 3 SOLVENT ATOMS : 85 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 44.20 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 43.78 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.11000 REMARK 3 B22 (A**2) : -0.11000 REMARK 3 B33 (A**2) : 0.17000 REMARK 3 B12 (A**2) : -0.06000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.308 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.234 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.172 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 7.381 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.925 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.908 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1492 ; 0.014 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2010 ; 1.514 ; 1.968 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 192 ; 7.515 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): NULL ; NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 228 ; 0.091 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1128 ; 0.006 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 556 ; 0.219 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 82 ; 0.198 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 79 ; 0.180 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 14 ; 0.249 ; 0.200 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 952 ; 0.919 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1524 ; 1.756 ; 2.000 REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 540 ; 2.306 ; 3.000 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 486 ; 4.010 ; 4.500 REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : 1 REMARK 3 REMARK 3 NCS GROUP NUMBER : 1 REMARK 3 CHAIN NAMES : A REMARK 3 NUMBER OF COMPONENTS NCS GROUP : 1 REMARK 3 COMPONENT C SSSEQI TO C SSSEQI CODE REMARK 3 1 A 1 A 97 1 REMARK 3 1 B 1 B 97 1 REMARK 3 GROUP CHAIN COUNT RMS WEIGHT REMARK 3 TIGHT POSITIONAL 1 A (A): 736 ; 0.02 ; 0.05 REMARK 3 TIGHT THERMAL 1 A (A**2): 736 ; 0.06 ; 0.50 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : BABINET MODEL WITH MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 1R94 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 03-NOV-03. REMARK 100 THE RCSB ID CODE IS RCSB020590.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 8.00 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : ENRAF-NONIUS FR591 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : OSMIC MIRRORS REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MAR REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 12243 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.300 REMARK 200 RESOLUTION RANGE LOW (A) : 500.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.4 REMARK 200 DATA REDUNDANCY : 5.600 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.06300 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 38.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.30 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.40 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.1 REMARK 200 DATA REDUNDANCY IN SHELL : 5.30 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.45700 REMARK 200 <I/SIGMA(I)> FOR SHELL : 5.500 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SIR REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 55.27 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.75 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: DIBASIC AMMONIUM PHOSPHATE, REMARK 280 IMIDAZOLE, PH 8.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE REMARK 280 298K, PH 8.00

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 62 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 -X,-Y,Z REMARK 290 5555 Y,-X+Y,Z+2/3 REMARK 290 6555 X-Y,X,Z+1/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 106.55667 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 53.27833 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 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 106.55667 REMARK 290 SMTRY1 6 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 53.27833 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 300 REMARK: THE BIOLOGICAL ASSEMBLY COMPRISES TWO POSSIBLE TETRAMERS REMARK 300 (A,B). TETRAMER A IS GENERATED FROM EITHER MONOMER IN ASYMMETRIC REMARK 300 UNIT USING THE FOLLOWING SYMMETRY OPERATORS: -X,-Y, Z AND -Y,X- REMARK 300 Y,Z+2/3 AND Y,-X+Y,Z+2/3. TETRAMER B IS GENERATED FROM THE DIMER REMARK 300 IN THE ASYMMETRIC UNIT AND THE SYMMETRY OPERATOR -X,-Y,Z.

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: TETRAMERIC 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 350 BIOMT1 2 -1.000000 0.000000 0.000000 55.33700 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 95.84650 REMARK 350 BIOMT3 2 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 GLU A 98 REMARK 465 CYS A 99 REMARK 465 GLY A 100 REMARK 465 CYS A 101 REMARK 465 GLY A 102 REMARK 465 GLU A 103 REMARK 465 SER A 104 REMARK 465 PHE A 105 REMARK 465 LYS A 106 REMARK 465 LEU A 107 REMARK 465 ALA A 108 REMARK 465 ALA A 109 REMARK 465 ALA A 110 REMARK 465 LEU A 111 REMARK 465 ASP A 112 REMARK 465 HIS A 113 REMARK 465 HIS A 114 REMARK 465 HIS A 115 REMARK 465 HIS A 116 REMARK 465 HIS A 117 REMARK 465 HIS A 118 REMARK 465 GLU B 98 REMARK 465 CYS B 99 REMARK 465 GLY B 100 REMARK 465 CYS B 101 REMARK 465 GLY B 102 REMARK 465 GLU B 103 REMARK 465 SER B 104 REMARK 465 PHE B 105 REMARK 465 LYS B 106 REMARK 465 LEU B 107 REMARK 465 ALA B 108 REMARK 465 ALA B 109 REMARK 465 ALA B 110 REMARK 465 LEU B 111 REMARK 465 ASP B 112 REMARK 465 HIS B 113 REMARK 465 HIS B 114 REMARK 465 HIS B 115 REMARK 465 HIS B 116 REMARK 465 HIS B 117 REMARK 465 HIS B 118

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 MET A 1 CG SD CE REMARK 470 MET B 1 CG SD CE

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 O HOH B 129 O HOH B 151 4665 2.08 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 57 CB - CG - OD2 ANGL. DEV. = 6.9 DEGREES REMARK 500 ASP A 65 CB - CG - OD2 ANGL. DEV. = 5.4 DEGREES REMARK 500 ASP B 57 CB - CG - OD2 ANGL. DEV. = 6.5 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 SER A 2 46.40 -65.37 REMARK 500 SER B 2 47.04 -68.63 REMARK 500 ASN B 94 21.20 -78.65 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 HG A 119 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HG B 119

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1R95 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF ISCA (NATIVE)

DBREF 1R94 A 1 105 UNP P0AAC8 YFHF_ECOLI 1 105 DBREF 1R94 B 1 105 UNP P0AAC8 YFHF_ECOLI 1 105

SEQADV 1R94 LYS A 106 UNP P0AAC8 CLONING ARTIFACT SEQADV 1R94 LEU A 107 UNP P0AAC8 CLONING ARTIFACT SEQADV 1R94 ALA A 108 UNP P0AAC8 CLONING ARTIFACT SEQADV 1R94 ALA A 109 UNP P0AAC8 CLONING ARTIFACT SEQADV 1R94 ALA A 110 UNP P0AAC8 CLONING ARTIFACT SEQADV 1R94 LEU A 111 UNP P0AAC8 CLONING ARTIFACT SEQADV 1R94 ASP A 112 UNP P0AAC8 CLONING ARTIFACT SEQADV 1R94 HIS A 113 UNP P0AAC8 EXPRESSION TAG SEQADV 1R94 HIS A 114 UNP P0AAC8 EXPRESSION TAG SEQADV 1R94 HIS A 115 UNP P0AAC8 EXPRESSION TAG SEQADV 1R94 HIS A 116 UNP P0AAC8 EXPRESSION TAG SEQADV 1R94 HIS A 117 UNP P0AAC8 EXPRESSION TAG SEQADV 1R94 HIS A 118 UNP P0AAC8 EXPRESSION TAG SEQADV 1R94 LYS B 106 UNP P0AAC8 CLONING ARTIFACT SEQADV 1R94 LEU B 107 UNP P0AAC8 CLONING ARTIFACT SEQADV 1R94 ALA B 108 UNP P0AAC8 CLONING ARTIFACT SEQADV 1R94 ALA B 109 UNP P0AAC8 CLONING ARTIFACT SEQADV 1R94 ALA B 110 UNP P0AAC8 CLONING ARTIFACT SEQADV 1R94 LEU B 111 UNP P0AAC8 CLONING ARTIFACT SEQADV 1R94 ASP B 112 UNP P0AAC8 CLONING ARTIFACT SEQADV 1R94 HIS B 113 UNP P0AAC8 EXPRESSION TAG SEQADV 1R94 HIS B 114 UNP P0AAC8 EXPRESSION TAG SEQADV 1R94 HIS B 115 UNP P0AAC8 EXPRESSION TAG SEQADV 1R94 HIS B 116 UNP P0AAC8 EXPRESSION TAG SEQADV 1R94 HIS B 117 UNP P0AAC8 EXPRESSION TAG SEQADV 1R94 HIS B 118 UNP P0AAC8 EXPRESSION TAG

SEQRES 1 A 118 MET SER ILE THR LEU SER ASP SER ALA ALA ALA ARG VAL SEQRES 2 A 118 ASN THR PHE LEU ALA ASN ARG GLY LYS GLY PHE GLY LEU SEQRES 3 A 118 ARG LEU GLY VAL ARG THR SER GLY CYS SER GLY MET ALA SEQRES 4 A 118 TYR VAL LEU GLU PHE VAL ASP GLU PRO THR PRO GLU ASP SEQRES 5 A 118 ILE VAL PHE GLU ASP LYS GLY VAL LYS VAL VAL VAL ASP SEQRES 6 A 118 GLY LYS SER LEU GLN PHE LEU ASP GLY THR GLN LEU ASP SEQRES 7 A 118 PHE VAL LYS GLU GLY LEU ASN GLU GLY PHE LYS PHE THR SEQRES 8 A 118 ASN PRO ASN VAL LYS ASP GLU CYS GLY CYS GLY GLU SER SEQRES 9 A 118 PHE LYS LEU ALA ALA ALA LEU ASP HIS HIS HIS HIS HIS SEQRES 10 A 118 HIS SEQRES 1 B 118 MET SER ILE THR LEU SER ASP SER ALA ALA ALA ARG VAL SEQRES 2 B 118 ASN THR PHE LEU ALA ASN ARG GLY LYS GLY PHE GLY LEU SEQRES 3 B 118 ARG LEU GLY VAL ARG THR SER GLY CYS SER GLY MET ALA SEQRES 4 B 118 TYR VAL LEU GLU PHE VAL ASP GLU PRO THR PRO GLU ASP SEQRES 5 B 118 ILE VAL PHE GLU ASP LYS GLY VAL LYS VAL VAL VAL ASP SEQRES 6 B 118 GLY LYS SER LEU GLN PHE LEU ASP GLY THR GLN LEU ASP SEQRES 7 B 118 PHE VAL LYS GLU GLY LEU ASN GLU GLY PHE LYS PHE THR SEQRES 8 B 118 ASN PRO ASN VAL LYS ASP GLU CYS GLY CYS GLY GLU SER SEQRES 9 B 118 PHE LYS LEU ALA ALA ALA LEU ASP HIS HIS HIS HIS HIS SEQRES 10 B 118 HIS

HET HG A 119 1 HET HG B 119 1

HETNAM HG MERCURY (II) ION

FORMUL 3 HG 2(HG 2+) FORMUL 5 HOH *85(H2 O)

HELIX 1 1 SER A 6 GLY A 21 1 16 HELIX 2 2 SER A 68 ASP A 73 1 6 HELIX 3 3 SER B 6 GLY B 21 1 16 HELIX 4 4 SER B 68 ASP B 73 1 6

SHEET 1 A 3 THR A 4 LEU A 5 0 SHEET 2 A 3 GLN A 76 GLU A 82 1 O LEU A 77 N THR A 4 SHEET 3 A 3 ASN A 85 THR A 91 -1 O ASN A 85 N GLU A 82 SHEET 1 B 4 MET A 38 VAL A 45 0 SHEET 2 B 4 GLY A 25 THR A 32 -1 N ARG A 31 O ALA A 39 SHEET 3 B 4 VAL A 60 ASP A 65 1 O VAL A 63 N LEU A 26 SHEET 4 B 4 ASP A 52 ASP A 57 -1 N ILE A 53 O VAL A 64 SHEET 1 C 3 THR B 4 LEU B 5 0 SHEET 2 C 3 GLN B 76 GLU B 82 1 O LEU B 77 N THR B 4 SHEET 3 C 3 ASN B 85 THR B 91 -1 O ASN B 85 N GLU B 82 SHEET 1 D 4 MET B 38 VAL B 45 0 SHEET 2 D 4 GLY B 25 THR B 32 -1 N ARG B 31 O ALA B 39 SHEET 3 D 4 VAL B 60 ASP B 65 1 O VAL B 63 N LEU B 26 SHEET 4 D 4 ASP B 52 ASP B 57 -1 N ILE B 53 O VAL B 64

LINK HG HG A 119 SG CYS A 35 1555 4775 2.81 LINK HG HG B 119 SG CYS B 35 1555 4775 2.77

SITE 1 AC1 2 CYS A 35 GLU A 82 SITE 1 AC2 1 CYS B 35

CRYST1 55.337 55.337 159.835 90.00 90.00 120.00 P 62 12

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 0.018071 0.010433 0.000000 0.00000

SCALE2 0.000000 0.020867 0.000000 0.00000

SCALE3 0.000000 0.000000 0.006256 0.00000