1KC3 - Header Asymmetric Unit

HEADER OXIDOREDUCTASE 07-NOV-01 1KC3

TITLE CRYSTAL STRUCTURE OF DTDP-6-DEOXY-L-LYXO-4-HEXULOSE REDUCTASE (RMLD) TITLE 2 IN COMPLEX WITH NADPH AND DTDP-L-RHAMNOSE

COMPND MOL_ID: 1; COMPND 2 MOLECULE: DTDP-GLUCOSE OXIDOREDUCTASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: DTDP-6-DEOXY-L-LYXO-4-HEXULOSE REDUCTASE; DTDP-4- COMPND 5 DEHYDRORHAMNOSE REDUCTASE; DTDP-4-KETO-L-RHAMNOSE REDUCTASE; DTDP-6- COMPND 6 DEOXY-L-MANNOSE DEHYDROGENASE; DTDP-L-RHAMNOSE SYNTHETASE; RFBA COMPND 7 PROTEIN; TDP-RHAMNOSE SYNTHETASE; COMPND 8 EC: 1.1.1.133; COMPND 9 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SALMONELLA TYPHIMURIUM; SOURCE 3 ORGANISM_TAXID: 602; SOURCE 4 GENE: RFBA; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21(LAMBDA DE3)PLYSS; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET30

KEYWDS ROSSMAN-FOLD, SUGAR-NUCLEOTIDE-BINDING DOMAIN, OXIDOREDUCTASE

EXPDTA X-RAY DIFFRACTION

AUTHOR W.BLANKENFELDT,I.D.KERR,M.F.GIRAUD,H.J.MCMIKEN,G.A.LEONARD, AUTHOR 2 C.WHITFIELD,P.MESSNER,M.GRANINGER,J.H.NAISMITH

REVDAT 4 13-JUL-11 1KC3 1 VERSN REVDAT 3 24-FEB-09 1KC3 1 VERSN REVDAT 2 01-APR-03 1KC3 1 JRNL REVDAT 1 28-JUN-02 1KC3 0

JRNL AUTH W.BLANKENFELDT,I.D.KERR,M.F.GIRAUD,H.J.MCMIKEN,G.LEONARD, JRNL AUTH 2 C.WHITFIELD,P.MESSNER,M.GRANINGER,J.H.NAISMITH JRNL TITL VARIATION ON A THEME OF SDR. DTDP-6-DEOXY-L- LYXO-4-HEXULOSE JRNL TITL 2 REDUCTASE (RMLD) SHOWS A NEW MG2+-DEPENDENT DIMERIZATION JRNL TITL 3 MODE. JRNL REF STRUCTURE V. 10 773 2002 JRNL REFN ISSN 0969-2126 JRNL PMID 12057193 JRNL DOI 10.1016/S0969-2126(02)00770-0

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH M.F.GIRAUD,H.J.MCMIKEN,G.A.LEONARD,P.MESSNER,C.WHITFIELD, REMARK 1 AUTH 2 J.H.NAISMITH REMARK 1 TITL OVEREXPRESSION, PURIFICATION, CRYSTALLISATION AND REMARK 1 TITL 2 PRELIMINARY STRUCTURAL STUDY OF REMARK 1 TITL 3 DTDP-6-DEOXY-LYXO-4-REDUCTASE (RMLD) THE FOURTH ENZYME OF REMARK 1 TITL 4 THE DTDP-RHANOSE SYNTHESIS PATHWAY,FROM SALMONELLA ENTRICA REMARK 1 TITL 5 SEROVAR TYPHIMURIM REMARK 1 REF ACTA CRYSTALLOGR.,SECT.D V. 55 2043 1999 REMARK 1 REFN ISSN 0907-4449 REMARK 1 DOI 10.1107/S0907444999012251 REMARK 1 REFERENCE 2 REMARK 1 AUTH M.F.GIRAUD,J.H.NAISMITH REMARK 1 TITL THE RHAMNOSE PATHWAY REMARK 1 REF CURR.OPIN.STRUCT.BIOL. V. 10 687 2000 REMARK 1 REFN ISSN 0959-440X REMARK 1 DOI 10.1016/S0959-440X(00)00145-7

REMARK 2 REMARK 2 RESOLUTION. 2.70 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 28.87 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.7 REMARK 3 NUMBER OF REFLECTIONS : 7806 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) : 0.196 REMARK 3 R VALUE (WORKING SET) : 0.191 REMARK 3 FREE R VALUE : 0.289 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 413 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) : 2.70 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.77 REMARK 3 REFLECTION IN BIN (WORKING SET) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.2140 REMARK 3 BIN FREE R VALUE SET COUNT : 30 REMARK 3 BIN FREE R VALUE : 0.2900 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2287 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 84 REMARK 3 SOLVENT ATOMS : 93 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 66.00 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 39.02 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 5.95000 REMARK 3 B22 (A**2) : -5.28000 REMARK 3 B33 (A**2) : -0.67000 REMARK 3 B12 (A**2) : 0.00000 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): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): 0.449 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.364 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 18.382 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : NULL REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): NULL ; 0.024 ; 0.021 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): NULL ; 2.282 ; 1.987 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): NULL ; NULL ; NULL 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): NULL ; NULL ; NULL REMARK 3 GENERAL PLANES REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL 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): NULL ; NULL ; NULL 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): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL 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): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL 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 : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : NULL REMARK 3 ION PROBE RADIUS : NULL REMARK 3 SHRINKAGE RADIUS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: TLS-OPTION WITH COFACTOR-BINDING, REMARK 3 SUBSTRATE-BINDING DOMAINS AND WATERS AS THREE SEPARATE TLS-BODIES REMARK 3 WAS USED THROUGHOUT

REMARK 4 REMARK 4 1KC3 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 13-NOV-01. REMARK 100 THE RCSB ID CODE IS RCSB014796.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 27-AUG-99 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.8 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID14-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.934 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 7905 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.700 REMARK 200 RESOLUTION RANGE LOW (A) : 28.750 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.800 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.1 REMARK 200 DATA REDUNDANCY : 3.500 REMARK 200 R MERGE (I) : 0.10500 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 3.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.70 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.77 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.3 REMARK 200 DATA REDUNDANCY IN SHELL : 3.40 REMARK 200 R MERGE FOR SHELL (I) : 0.37700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 1.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: SOLVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.04 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.20 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: HEPES, PEG-MME 5000, MGCL2, PH 6.8, REMARK 280 VAPOR DIFFUSION, SITTING DROP AT 298K

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z REMARK 290 3555 -X+1/2,Y+1/2,-Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 23.99000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 36.13050 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 23.99000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 36.13050 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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A DIMER GENERATED BY THE TWOFOLD REMARK 300 AXIS ALONG C: -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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 7110 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 23850 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -40.0 KCAL/MOL 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 350 BIOMT1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000

REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 MG MG A 501 LIES ON A SPECIAL POSITION.

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 ILE A 299

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 15 CD GLU A 15 OE1 -0.066 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 HIS A 32 23.17 -78.59 REMARK 500 PHE A 36 128.39 178.91 REMARK 500 ALA A 82 -60.86 -128.81 REMARK 500 THR A 111 79.02 39.03 REMARK 500 ASP A 113 -91.27 69.99 REMARK 500 CYS A 143 89.28 -151.66 REMARK 500 ALA A 217 154.98 -48.26 REMARK 500 THR A 251 -75.82 7.72 REMARK 500 PHE A 294 1.64 -69.26 REMARK 500 THR A 296 70.39 -104.34 REMARK 500 REMARK 500 REMARK: NULL

REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 954 DISTANCE = 5.61 ANGSTROMS REMARK 525 HOH A 982 DISTANCE = 5.44 ANGSTROMS REMARK 525 HOH A 984 DISTANCE = 6.53 ANGSTROMS REMARK 525 HOH A 991 DISTANCE = 5.87 ANGSTROMS

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 MG A 501 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 908 O REMARK 620 2 HOH A 910 O 95.6 REMARK 620 3 HOH A 909 O 97.2 98.5 REMARK 620 N 1 2

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NDP A 901 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TRH A 601

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1KBZ RELATED DB: PDB REMARK 900 APO STRUCTURE REMARK 900 RELATED ID: 1KC0 RELATED DB: PDB REMARK 900 NADH COMPLEX REMARK 900 RELATED ID: 1KC1 RELATED DB: PDB REMARK 900 NADPH COMPLEX

DBREF 1KC3 A 1 299 UNP P26392 RFBD_SALTY 1 299

SEQRES 1 A 299 MET ASN ILE LEU LEU PHE GLY LYS THR GLY GLN VAL GLY SEQRES 2 A 299 TRP GLU LEU GLN ARG SER LEU ALA PRO VAL GLY ASN LEU SEQRES 3 A 299 ILE ALA LEU ASP VAL HIS SER LYS GLU PHE CYS GLY ASP SEQRES 4 A 299 PHE SER ASN PRO LYS GLY VAL ALA GLU THR VAL ARG LYS SEQRES 5 A 299 LEU ARG PRO ASP VAL ILE VAL ASN ALA ALA ALA HIS THR SEQRES 6 A 299 ALA VAL ASP LYS ALA GLU SER GLU PRO GLU LEU ALA GLN SEQRES 7 A 299 LEU LEU ASN ALA THR SER VAL GLU ALA ILE ALA LYS ALA SEQRES 8 A 299 ALA ASN GLU THR GLY ALA TRP VAL VAL HIS TYR SER THR SEQRES 9 A 299 ASP TYR VAL PHE PRO GLY THR GLY ASP ILE PRO TRP GLN SEQRES 10 A 299 GLU THR ASP ALA THR SER PRO LEU ASN VAL TYR GLY LYS SEQRES 11 A 299 THR LYS LEU ALA GLY GLU LYS ALA LEU GLN ASP ASN CYS SEQRES 12 A 299 PRO LYS HIS LEU ILE PHE ARG THR SER TRP VAL TYR ALA SEQRES 13 A 299 GLY LYS GLY ASN ASN PHE ALA LYS THR MET LEU ARG LEU SEQRES 14 A 299 ALA LYS GLU ARG GLN THR LEU SER VAL ILE ASN ASP GLN SEQRES 15 A 299 TYR GLY ALA PRO THR GLY ALA GLU LEU LEU ALA ASP CYS SEQRES 16 A 299 THR ALA HIS ALA ILE ARG VAL ALA LEU ASN LYS PRO GLU SEQRES 17 A 299 VAL ALA GLY LEU TYR HIS LEU VAL ALA GLY GLY THR THR SEQRES 18 A 299 THR TRP HIS ASP TYR ALA ALA LEU VAL PHE ASP GLU ALA SEQRES 19 A 299 ARG LYS ALA GLY ILE THR LEU ALA LEU THR GLU LEU ASN SEQRES 20 A 299 ALA VAL PRO THR SER ALA TYR PRO THR PRO ALA SER ARG SEQRES 21 A 299 PRO GLY ASN SER ARG LEU ASN THR GLU LYS PHE GLN ARG SEQRES 22 A 299 ASN PHE ASP LEU ILE LEU PRO GLN TRP GLU LEU GLY VAL SEQRES 23 A 299 LYS ARG MET LEU THR GLU MET PHE THR THR THR THR ILE

HET MG A 501 1 HET NDP A 901 48 HET TRH A 601 35

HETNAM MG MAGNESIUM ION HETNAM NDP NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE HETNAM 2 NDP PHOSPHATE HETNAM TRH 2'-DEOXY-THYMIDINE-BETA-L-RHAMNOSE

FORMUL 2 MG MG 2+ FORMUL 3 NDP C21 H30 N7 O17 P3 FORMUL 4 TRH C16 H26 N2 O15 P2 FORMUL 5 HOH *93(H2 O)

HELIX 1 1 GLY A 10 ALA A 21 1 12 HELIX 2 2 ASN A 42 ARG A 54 1 13 HELIX 3 3 ALA A 66 GLU A 73 1 8 HELIX 4 4 GLU A 73 ALA A 82 1 10 HELIX 5 5 ALA A 82 GLY A 96 1 15 HELIX 6 6 TYR A 106 PHE A 108 5 3 HELIX 7 7 ASN A 126 CYS A 143 1 18 HELIX 8 8 ASN A 161 ARG A 173 1 13 HELIX 9 9 ALA A 189 LYS A 206 1 18 HELIX 10 10 PRO A 207 ALA A 210 5 4 HELIX 11 11 TRP A 223 ALA A 237 1 15 HELIX 12 12 PRO A 250 TYR A 254 5 5 HELIX 13 13 THR A 268 ASP A 276 1 9 HELIX 14 14 GLN A 281 PHE A 294 1 14

SHEET 1 A 6 ASN A 25 LEU A 29 0 SHEET 2 A 6 ASN A 2 PHE A 6 1 N ILE A 3 O ASN A 25 SHEET 3 A 6 VAL A 57 ASN A 60 1 O VAL A 59 N LEU A 4 SHEET 4 A 6 TRP A 98 THR A 104 1 O VAL A 100 N ILE A 58 SHEET 5 A 6 HIS A 146 THR A 151 1 O LEU A 147 N VAL A 99 SHEET 6 A 6 GLY A 211 HIS A 214 1 O TYR A 213 N ILE A 148 SHEET 1 B 2 VAL A 154 TYR A 155 0 SHEET 2 B 2 THR A 187 GLY A 188 1 O THR A 187 N TYR A 155 SHEET 1 C 2 THR A 175 ILE A 179 0 SHEET 2 C 2 GLU A 245 VAL A 249 1 O ASN A 247 N LEU A 176 SHEET 1 D 3 THR A 221 THR A 222 0 SHEET 2 D 3 TYR A 183 GLY A 184 -1 N GLY A 184 O THR A 221 SHEET 3 D 3 ASN A 263 SER A 264 1 O SER A 264 N TYR A 183

LINK MG MG A 501 O HOH A 908 1555 1555 2.23 LINK MG MG A 501 O HOH A 910 1555 1555 2.08 LINK MG MG A 501 O HOH A 909 1555 1555 2.23 LINK MG MG A 501 O HOH A 908 1555 2555 2.37 LINK MG MG A 501 O HOH A 910 1555 2555 2.07 LINK MG MG A 501 O HOH A 909 1555 2555 2.21

SITE 1 AC1 3 HOH A 908 HOH A 909 HOH A 910 SITE 1 AC2 26 GLY A 10 GLN A 11 VAL A 12 VAL A 31 SITE 2 AC2 26 GLY A 38 ASP A 39 PHE A 40 SER A 41 SITE 3 AC2 26 ALA A 61 ALA A 62 ALA A 63 THR A 65 SITE 4 AC2 26 LEU A 80 TYR A 102 SER A 103 THR A 104 SITE 5 AC2 26 TYR A 128 LYS A 132 THR A 151 VAL A 154 SITE 6 AC2 26 GLN A 174 TRH A 601 HOH A 904 HOH A 907 SITE 7 AC2 26 HOH A 978 HOH A 994 SITE 1 AC3 18 VAL A 67 THR A 104 ASP A 105 TYR A 106 SITE 2 AC3 18 TYR A 128 SER A 152 TRP A 153 PHE A 162 SITE 3 AC3 18 SER A 177 VAL A 178 ILE A 179 GLN A 182 SITE 4 AC3 18 TRP A 223 ARG A 260 NDP A 901 HOH A 951 SITE 5 AC3 18 HOH A 952 HOH A 988

CRYST1 47.980 72.261 82.682 90.00 90.00 90.00 P 21 21 2 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 0.020842 0.000000 0.000000 0.00000

SCALE2 0.000000 0.013839 0.000000 0.00000

SCALE3 0.000000 0.000000 0.012095 0.00000