HEADER DNA BINDING PROTEIN/DNA 06-AUG-09 3IKT TITLE CRYSTAL STRUCTURE OF A REX-FAMILY REPRESSOR/DNA/NAD+ COMPLEX FROM TITLE 2 THERMUS AQUATICUS COMPND MOL_ID: 1; COMPND 2 MOLECULE: REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: REX OPERATOR DNA; COMPND 7 CHAIN: C, D; COMPND 8 ENGINEERED: YES; COMPND 9 OTHER_DETAILS: THE MINIMAL CONSENSUS BINDING SITE OF SOME REX FAMILY COMPND 10 MEMBERS SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: THERMUS THERMOPHILUS HB27; SOURCE 3 ORGANISM_TAXID: 262724; SOURCE 4 STRAIN: HB27 / DSM 7039; SOURCE 5 ATCC: BAA-163; SOURCE 6 GENE: REX, TT_C1293; SOURCE 7 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 8 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 9 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 10 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 11 EXPRESSION_SYSTEM_PLASMID: PET24; SOURCE 12 MOL_ID: 2; SOURCE 13 SYNTHETIC: YES; SOURCE 14 OTHER_DETAILS: SYNTHETIC 22BP DSDNA OBTAINED FROM IDT KEYWDS REDOX-SENSING, WINGED HELIX, ROSSMANN FOLD, NICOTINAMIDE ADENINE KEYWDS 2 DINUCLEOTIDE, NAD, REX, THERMUS AQUATICUS, DNA BINDING PROTEIN, KEYWDS 3 CYTOPLASM, DNA-BINDING, REPRESSOR, TRANSCRIPTION, TRANSCRIPTION KEYWDS 4 REGULATION, DNA BINDING PROTEIN-DNA COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR K.J.MCLAUGHLIN,C.L.KIELKOPF REVDAT 3 06-SEP-23 3IKT 1 REMARK SEQADV REVDAT 2 16-JUN-10 3IKT 1 JRNL REVDAT 1 09-JUN-10 3IKT 0 JRNL AUTH K.J.MCLAUGHLIN,C.M.STRAIN-DAMERELL,K.XIE,D.BREKASIS, JRNL AUTH 2 A.S.SOARES,M.S.PAGET,C.L.KIELKOPF JRNL TITL STRUCTURAL BASIS FOR NADH/NAD+ REDOX SENSING BY A REX FAMILY JRNL TITL 2 REPRESSOR. JRNL REF MOL.CELL V. 38 563 2010 JRNL REFN ISSN 1097-2765 JRNL PMID 20513431 JRNL DOI 10.1016/J.MOLCEL.2010.05.006 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 : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.26 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 98.6 REMARK 3 NUMBER OF REFLECTIONS : 33165 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : MAXIMUM LIKELIHOOD REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.234 REMARK 3 FREE R VALUE : 0.268 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 3315 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 : 3166 REMARK 3 NUCLEIC ACID ATOMS : 896 REMARK 3 HETEROGEN ATOMS : 44 REMARK 3 SOLVENT ATOMS : 378 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) : 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) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.480 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 3IKT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 11-AUG-09. REMARK 100 THE DEPOSITION ID IS D_1000054536. 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 REMARK 200 PH : 6.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X12B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0000 REMARK 200 MONOCHROMATOR : SI(111) REMARK 200 OPTICS : VERTICALLY COLLIMATING MIRROR REMARK 200 FOLLOWED BY A CHANNEL-CUT SI(111) REMARK 200 CRYSTAL MONOCHROMATOR AND A REMARK 200 DOUBLE FOCUSING TOROIDAL MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 40822 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.260 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 (%) : 97.6 REMARK 200 DATA REDUNDANCY : 10.70 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.08600 REMARK 200 FOR THE DATA SET : 21.3000 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) : 2.37 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.8 REMARK 200 DATA REDUNDANCY IN SHELL : 11.50 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.40100 REMARK 200 FOR SHELL : 7.200 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: PDB ENTRY 1XCB REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 57.98 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.93 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20-30% PEG 400, 0.1M NA CACODYLATE PH REMARK 280 6.0, 0.2M CACL2, 5-10% GLYCEROL, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+1/3 REMARK 290 3555 -X+Y,-X,Z+2/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+2/3 REMARK 290 6555 -X,-X+Y,-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 99.75333 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 199.50667 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 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 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 199.50667 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 99.75333 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: BIOLOGICAL UNIT IS THE SAME AS ASYMMETRIC UNIT. 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 10710 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 24190 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -69.2 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D 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 ARG A 58 REMARK 465 GLY A 59 REMARK 465 VAL A 60 REMARK 465 GLY B 0 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 103 CG CD OE1 OE2 REMARK 470 GLU B 103 CG CD OE1 OE2 REMARK 470 LYS B 155 CG CD CE NZ REMARK 470 LYS B 204 CG CD CE NZ 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 MET A 1 CG SD CE REMARK 480 GLU A 32 CD OE1 OE2 REMARK 480 LYS B 2 CE NZ REMARK 480 ARG B 150 CZ NH1 NH2 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 O4 DT C 4 O HOH C 344 1.92 REMARK 500 CD2 HIS B 27 O HOH B 400 2.02 REMARK 500 O ARG B 150 O HOH B 356 2.08 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 DC C 21 C5' DC C 21 C4' -0.180 REMARK 500 DC C 21 O3' DC C 21 C3' -0.049 REMARK 500 DC C 21 O3' DG C 22 P 0.086 REMARK 500 DG C 22 O4' DG C 22 C1' 0.145 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 DC C 21 O3' - P - OP2 ANGL. DEV. = 9.5 DEGREES REMARK 500 DC C 21 O5' - P - OP2 ANGL. DEV. = -17.4 DEGREES REMARK 500 DC C 21 P - O5' - C5' ANGL. DEV. = -19.9 DEGREES REMARK 500 DC C 21 O4' - C4' - C3' ANGL. DEV. = -2.6 DEGREES REMARK 500 DC C 21 O4' - C1' - C2' ANGL. DEV. = -14.5 DEGREES REMARK 500 DC C 21 O4' - C1' - N1 ANGL. DEV. = 3.5 DEGREES REMARK 500 DC C 21 C3' - O3' - P ANGL. DEV. = 9.0 DEGREES REMARK 500 DG C 22 O3' - P - OP2 ANGL. DEV. = 12.8 DEGREES REMARK 500 DG C 22 O5' - P - OP1 ANGL. DEV. = -14.4 DEGREES REMARK 500 DG C 22 O5' - P - OP2 ANGL. DEV. = -14.6 DEGREES REMARK 500 DG C 22 P - O5' - C5' ANGL. DEV. = -12.5 DEGREES REMARK 500 DG C 22 O4' - C4' - C3' ANGL. DEV. = 5.7 DEGREES REMARK 500 DG C 22 C5' - C4' - O4' ANGL. DEV. = -16.3 DEGREES REMARK 500 DG C 22 N9 - C1' - C2' ANGL. DEV. = -16.6 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 MET A 1 24.75 -44.41 REMARK 500 ASN A 78 41.18 -98.33 REMARK 500 MET A 88 54.29 -91.88 REMARK 500 VAL B 60 -57.01 -123.01 REMARK 500 ASN B 78 33.17 -84.94 REMARK 500 MET B 88 44.32 -83.51 REMARK 500 ASP B 131 -8.11 -58.46 REMARK 500 ARG B 136 -25.09 -149.34 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 NAD A 500 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1XCB RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF A REX-FAMILY REPRESSOR/NADH COMPLEX FROM REMARK 900 THERMUS AQUATICUS REMARK 900 RELATED ID: 3IKV RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF A REX-FAMILY REPRESSOR R90D MUTANT FROM REMARK 900 THERMUS AQUATICUS REMARK 900 RELATED ID: 3IL2 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF A REX-FAMILY REPRESSOR R90D MUTANT/DNA COMPLEX REMARK 900 FROM THERMUS AQUATICUS DBREF 3IKT A 1 206 UNP Q72I39 REX_THET2 1 206 DBREF 3IKT B 1 206 UNP Q72I39 REX_THET2 1 206 DBREF 3IKT C 1 22 PDB 3IKT 3IKT 1 22 DBREF 3IKT D 1 22 PDB 3IKT 3IKT 1 22 SEQADV 3IKT GLY A 0 UNP Q72I39 EXPRESSION TAG SEQADV 3IKT GLY B 0 UNP Q72I39 EXPRESSION TAG SEQRES 1 A 207 GLY MET LYS VAL PRO GLU ALA ALA ILE SER ARG LEU ILE SEQRES 2 A 207 THR TYR LEU ARG ILE LEU GLU GLU LEU GLU ALA GLN GLY SEQRES 3 A 207 VAL HIS ARG THR SER SER GLU GLN LEU GLY GLU LEU ALA SEQRES 4 A 207 GLN VAL THR ALA PHE GLN VAL ARG LYS ASP LEU SER TYR SEQRES 5 A 207 PHE GLY SER TYR GLY THR ARG GLY VAL GLY TYR THR VAL SEQRES 6 A 207 PRO VAL LEU LYS ARG GLU LEU ARG HIS ILE LEU GLY LEU SEQRES 7 A 207 ASN ARG LYS TRP GLY LEU CYS ILE VAL GLY MET GLY ARG SEQRES 8 A 207 LEU GLY SER ALA LEU ALA ASP TYR PRO GLY PHE GLY GLU SEQRES 9 A 207 SER PHE GLU LEU ARG GLY PHE PHE ASP VAL ASP PRO GLU SEQRES 10 A 207 LYS VAL GLY ARG PRO VAL ARG GLY GLY VAL ILE GLU HIS SEQRES 11 A 207 VAL ASP LEU LEU PRO GLN ARG VAL PRO GLY ARG ILE GLU SEQRES 12 A 207 ILE ALA LEU LEU THR VAL PRO ARG GLU ALA ALA GLN LYS SEQRES 13 A 207 ALA ALA ASP LEU LEU VAL ALA ALA GLY ILE LYS GLY ILE SEQRES 14 A 207 LEU ASN PHE ALA PRO VAL VAL LEU GLU VAL PRO LYS GLU SEQRES 15 A 207 VAL ALA VAL GLU ASN VAL ASP PHE LEU ALA GLY LEU THR SEQRES 16 A 207 ARG LEU SER PHE ALA ILE LEU ASN PRO LYS TRP ARG SEQRES 1 B 207 GLY MET LYS VAL PRO GLU ALA ALA ILE SER ARG LEU ILE SEQRES 2 B 207 THR TYR LEU ARG ILE LEU GLU GLU LEU GLU ALA GLN GLY SEQRES 3 B 207 VAL HIS ARG THR SER SER GLU GLN LEU GLY GLU LEU ALA SEQRES 4 B 207 GLN VAL THR ALA PHE GLN VAL ARG LYS ASP LEU SER TYR SEQRES 5 B 207 PHE GLY SER TYR GLY THR ARG GLY VAL GLY TYR THR VAL SEQRES 6 B 207 PRO VAL LEU LYS ARG GLU LEU ARG HIS ILE LEU GLY LEU SEQRES 7 B 207 ASN ARG LYS TRP GLY LEU CYS ILE VAL GLY MET GLY ARG SEQRES 8 B 207 LEU GLY SER ALA LEU ALA ASP TYR PRO GLY PHE GLY GLU SEQRES 9 B 207 SER PHE GLU LEU ARG GLY PHE PHE ASP VAL ASP PRO GLU SEQRES 10 B 207 LYS VAL GLY ARG PRO VAL ARG GLY GLY VAL ILE GLU HIS SEQRES 11 B 207 VAL ASP LEU LEU PRO GLN ARG VAL PRO GLY ARG ILE GLU SEQRES 12 B 207 ILE ALA LEU LEU THR VAL PRO ARG GLU ALA ALA GLN LYS SEQRES 13 B 207 ALA ALA ASP LEU LEU VAL ALA ALA GLY ILE LYS GLY ILE SEQRES 14 B 207 LEU ASN PHE ALA PRO VAL VAL LEU GLU VAL PRO LYS GLU SEQRES 15 B 207 VAL ALA VAL GLU ASN VAL ASP PHE LEU ALA GLY LEU THR SEQRES 16 B 207 ARG LEU SER PHE ALA ILE LEU ASN PRO LYS TRP ARG SEQRES 1 C 22 DC DG DC DT DG DT DG DA DA DC DG DC DG SEQRES 2 C 22 DT DT DC DA DC DA DG DC DG SEQRES 1 D 22 DC DG DC DT DG DT DG DA DA DC DG DC DG SEQRES 2 D 22 DT DT DC DA DC DA DG DC DG HET NAD A 500 44 HETNAM NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE FORMUL 5 NAD C21 H27 N7 O14 P2 FORMUL 6 HOH *378(H2 O) HELIX 1 1 PRO A 4 GLY A 25 1 22 HELIX 2 2 SER A 30 GLN A 39 1 10 HELIX 3 3 THR A 41 TYR A 51 1 11 HELIX 4 4 VAL A 64 LEU A 75 1 12 HELIX 5 5 GLY A 89 ASP A 97 1 9 HELIX 6 6 ASP A 131 ARG A 136 5 6 HELIX 7 7 PRO A 149 GLU A 151 5 3 HELIX 8 8 ALA A 152 ALA A 163 1 12 HELIX 9 9 ASP A 188 ASN A 202 1 15 HELIX 10 10 ALA B 6 GLN B 24 1 19 HELIX 11 11 SER B 30 GLN B 39 1 10 HELIX 12 12 THR B 41 TYR B 51 1 11 HELIX 13 13 VAL B 64 LEU B 75 1 12 HELIX 14 14 LEU B 91 TYR B 98 1 8 HELIX 15 15 ASP B 131 LEU B 133 5 3 HELIX 16 16 PRO B 149 GLU B 151 5 3 HELIX 17 17 ALA B 152 ALA B 163 1 12 HELIX 18 18 ASP B 188 ASN B 202 1 15 SHEET 1 A 2 ARG A 28 THR A 29 0 SHEET 2 A 2 TYR A 62 THR A 63 -1 O TYR A 62 N THR A 29 SHEET 1 B 7 PRO A 121 VAL A 122 0 SHEET 2 B 7 GLY A 125 HIS A 129 -1 O GLY A 125 N VAL A 122 SHEET 3 B 7 PHE A 105 ASP A 112 1 N PHE A 110 O GLU A 128 SHEET 4 B 7 TRP A 81 VAL A 86 1 N LEU A 83 O GLU A 106 SHEET 5 B 7 ILE A 143 LEU A 146 1 O LEU A 145 N CYS A 84 SHEET 6 B 7 GLY A 167 ASN A 170 1 O LEU A 169 N LEU A 146 SHEET 7 B 7 ALA A 183 ASN A 186 1 O ALA A 183 N ILE A 168 SHEET 1 C 2 ARG B 28 THR B 29 0 SHEET 2 C 2 TYR B 62 THR B 63 -1 O TYR B 62 N THR B 29 SHEET 1 D 6 GLU B 128 HIS B 129 0 SHEET 2 D 6 PHE B 105 ASP B 112 1 N PHE B 110 O GLU B 128 SHEET 3 D 6 TRP B 81 VAL B 86 1 N LEU B 83 O ARG B 108 SHEET 4 D 6 ILE B 143 LEU B 146 1 O LEU B 145 N CYS B 84 SHEET 5 D 6 GLY B 167 ASN B 170 1 O GLY B 167 N ALA B 144 SHEET 6 D 6 ALA B 183 ASN B 186 1 O ALA B 183 N ILE B 168 SHEET 1 E 2 PRO B 121 VAL B 122 0 SHEET 2 E 2 GLY B 125 VAL B 126 -1 O GLY B 125 N VAL B 122 SITE 1 AC1 23 GLY A 87 GLY A 89 ARG A 90 LEU A 91 SITE 2 AC1 23 ASP A 112 VAL A 113 LYS A 117 VAL A 130 SITE 3 AC1 23 THR A 147 VAL A 148 PRO A 149 ALA A 152 SITE 4 AC1 23 PHE A 171 ALA A 172 PRO A 173 PHE A 189 SITE 5 AC1 23 HOH A 211 HOH A 213 ALA B 94 LEU B 95 SITE 6 AC1 23 TYR B 98 HOH B 225 HOH B 314 CRYST1 63.150 63.150 299.260 90.00 90.00 120.00 P 31 2 1 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 0.015835 0.009143 0.000000 0.00000 SCALE2 0.000000 0.018285 0.000000 0.00000 SCALE3 0.000000 0.000000 0.003342 0.00000