HEADER TRANSCRIPTION/DNA 21-AUG-96 1IHF TITLE INTEGRATION HOST FACTOR/DNA COMPLEX COMPND MOL_ID: 1; COMPND 2 MOLECULE: DNA (35-MER); COMPND 3 CHAIN: C; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: DNA (5'-D(*GP*GP*CP*CP*AP*AP*AP*AP*AP*AP*GP*CP*AP*TP*T)- COMPND 7 3'); COMPND 8 CHAIN: D; COMPND 9 ENGINEERED: YES; COMPND 10 MOL_ID: 3; COMPND 11 MOLECULE: DNA (5'- COMPND 12 D(*GP*CP*TP*TP*AP*TP*CP*AP*AP*TP*TP*TP*GP*TP*TP*GP*C P*AP*CP*C)-3'); COMPND 13 CHAIN: E; COMPND 14 SYNONYM: IHF ALPHA CHAIN; COMPND 15 ENGINEERED: YES; COMPND 16 MOL_ID: 4; COMPND 17 MOLECULE: PROTEIN (INTEGRATION HOST FACTOR (ALPHA) (IHF)); COMPND 18 CHAIN: A; COMPND 19 SYNONYM: IHF BETA CHAIN; COMPND 20 MOL_ID: 5; COMPND 21 MOLECULE: PROTEIN (INTEGRATION HOST FACTOR (BETA) (IHF)); COMPND 22 CHAIN: B SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 MOL_ID: 2; SOURCE 4 SYNTHETIC: YES; SOURCE 5 MOL_ID: 3; SOURCE 6 SYNTHETIC: YES; SOURCE 7 MOL_ID: 4; SOURCE 8 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 9 ORGANISM_TAXID: 562; SOURCE 10 MOL_ID: 5; SOURCE 11 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 12 ORGANISM_TAXID: 562 KEYWDS COMPLEX (TRANSCRIPTION REGULATION-DNA), TRANSCRIPTION FACTOR, BETA KEYWDS 2 RIBBON MOTIF, DNA BENDING PROTEIN, TRANSCRIPTION-DNA COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR P.A.RICE,S.-W.YANG,K.MIZUUCHI,H.A.NASH REVDAT 7 07-FEB-24 1IHF 1 REMARK LINK REVDAT 6 01-MAY-19 1IHF 1 REMARK REVDAT 5 09-MAY-12 1IHF 1 REMARK REVDAT 4 02-MAY-12 1IHF 1 LINK REMARK SITE VERSN REVDAT 3 24-FEB-09 1IHF 1 VERSN REVDAT 2 01-APR-03 1IHF 1 JRNL REVDAT 1 12-FEB-97 1IHF 0 JRNL AUTH P.A.RICE,S.YANG,K.MIZUUCHI,H.A.NASH JRNL TITL CRYSTAL STRUCTURE OF AN IHF-DNA COMPLEX: A PROTEIN-INDUCED JRNL TITL 2 DNA U-TURN. JRNL REF CELL(CAMBRIDGE,MASS.) V. 87 1295 1996 JRNL REFN ISSN 0092-8674 JRNL PMID 8980235 JRNL DOI 10.1016/S0092-8674(00)81824-3 REMARK 2 REMARK 2 RESOLUTION. 2.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.816 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 15.00 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) (%) : 81.5 REMARK 3 NUMBER OF REFLECTIONS : 21918 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : R-FREE REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.192 REMARK 3 FREE R VALUE : 0.255 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1046 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) : 2.20 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.30 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 29.00 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 888 REMARK 3 BIN R VALUE (WORKING SET) : 0.3820 REMARK 3 BIN FREE R VALUE : 0.4260 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.00 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 49 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 : 1511 REMARK 3 NUCLEIC ACID ATOMS : 1426 REMARK 3 HETEROGEN ATOMS : 15 REMARK 3 SOLVENT ATOMS : 385 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 44.80 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.68400 REMARK 3 B22 (A**2) : 23.18000 REMARK 3 B33 (A**2) : -17.70000 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 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) : 1.180 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 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 : DNA-RNA.PARAM REMARK 3 PARAMETER FILE 2 : PARHCSDX.PRO REMARK 3 PARAMETER FILE 3 : PARAM19.SOL REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : DNA-RNA.TOP REMARK 3 TOPOLOGY FILE 2 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REMARK 3 DIFFRACTION IS ANISOTROPIC. FALLS BELOW 2 ALONG X AT 2.5 REMARK 3 ANGSTROM, ALONG Y AT 3.0 ANGSTROM, AND ALONG Z IS STILL >2 AT 2.2 REMARK 3 ANGSTROM. THE COMPLETENESS OF THE DATA WITHIN AN ELLIPSOID WITH REMARK 3 THESE PRINCIPLE AXES IS 98.0%. THIS EXPLAINS THE LOW VALUE OF THE REMARK 3 COMPLETENESS IN THE HIGHEST RESOLUTION BIN. THE REPORTED OVERALL REMARK 3 RESOLUTION OF 2.5 ANGSTROM IS AN AVERAGE VALUE. REMARK 3 REMARK 3 DNA PARAMETERS FROM PARKINSON, G., VOJTECHOVSKY, J., CLOWNEY, L., REMARK 3 BRUNGER, A.T. AND BERMAN, H.M. (1996) ACTA CRYST. D52, 57-64. REMARK 3 REMARK 3 NON-WATSON-CRICK BASE PAIRING: REMARK 3 T C 28 REVERSE WATSON-CRICK BASE PAIR. REMARK 3 T C 29 HOOGSTEEN BASE PAIR. REMARK 4 REMARK 4 1IHF COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY NDB. REMARK 100 THE DEPOSITION ID IS D_1000174160. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 14-MAR-96 REMARK 200 TEMPERATURE (KELVIN) : 100.00 REMARK 200 PH : 7.40 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 : RIGAKU RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : DOUBLE FOCUSSING MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IIC REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL (DENZO) REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 22925 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 15.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 85.2 REMARK 200 DATA REDUNDANCY : 8.200 REMARK 200 R MERGE (I) : 0.06300 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: MLPHARE, RAVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 58.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.89 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 7.40, VAPOR 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 23.68000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 90.40000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 29.96000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 90.40000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 23.68000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 29.96000 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: PENTAMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, D, E, 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 MET A 1 REMARK 465 ASP A 98 REMARK 465 GLU A 99 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 LYS A 97 CG CD CE NZ REMARK 470 TYR B 93 CG CD1 CD2 CE1 CE2 CZ OH 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 H61 DA D 27 HO3' DT D 29 1.29 REMARK 500 HE2 HIS B 16 CD CD B 308 1.41 REMARK 500 HE2 HIS B 54 CD CD B 302 1.49 REMARK 500 H1 MET B 1 O HOH B 623 1.56 REMARK 500 REMARK 500 REMARK: NULL 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 O2 DC C -50 H22 DG D 15 3555 1.58 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 PHE A 49 -82.20 -128.21 REMARK 500 GLN B 14 63.99 -104.98 REMARK 500 PHE B 48 -53.11 -120.04 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 CD C 303 CD REMARK 620 N RES CSSEQI ATOM REMARK 620 1 DG C -49 N7 REMARK 620 2 HOH C 710 O 79.1 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CD C 314 CD REMARK 620 N RES CSSEQI ATOM REMARK 620 1 DG C -36 N7 REMARK 620 2 HOH C 573 O 101.3 REMARK 620 3 HOH C 574 O 170.0 72.1 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CD C 306 CD REMARK 620 N RES CSSEQI ATOM REMARK 620 1 DG C -18 N7 REMARK 620 2 HOH C 519 O 96.3 REMARK 620 3 HOH C 520 O 102.2 63.5 REMARK 620 4 HOH C 525 O 93.9 138.2 151.5 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CD E 301 CD REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH C 424 O REMARK 620 2 DG E 30 N7 100.9 REMARK 620 3 HOH E 425 O 167.6 82.3 REMARK 620 4 HOH E 662 O 91.0 150.7 80.9 REMARK 620 5 GLU B 73 OE2 71.0 115.4 118.6 93.7 REMARK 620 6 GLU B 73 OE1 110.3 79.2 82.0 121.6 49.6 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CD D 305 CD REMARK 620 N RES CSSEQI ATOM REMARK 620 1 DG D 15 N7 REMARK 620 2 HOH D 521 O 110.3 REMARK 620 3 HOH D 522 O 84.6 89.4 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CD D 309 CD REMARK 620 N RES CSSEQI ATOM REMARK 620 1 DA D 24 N7 REMARK 620 2 HOH D 450 O 99.5 REMARK 620 3 HOH D 456 O 93.1 165.4 REMARK 620 4 HOH D 457 O 99.4 90.0 95.2 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CD D 304 CD REMARK 620 N RES CSSEQI ATOM REMARK 620 1 DT D 28 OP2 REMARK 620 2 HOH D 641 O 76.4 REMARK 620 3 HOH D 642 O 118.8 87.2 REMARK 620 4 THR B 60 OG1 82.1 158.3 106.1 REMARK 620 5 HOH B 682 O 165.8 117.7 66.0 83.7 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CD A 311 CD REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ALA A 2 O REMARK 620 2 GLU A 7 OE2 79.9 REMARK 620 3 HOH A 555 O 68.5 70.1 REMARK 620 4 GLU B 41 OE2 86.7 136.2 141.1 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CD B 310 CD REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 7 OE1 REMARK 620 2 GLU B 41 OE2 117.0 REMARK 620 3 GLU B 41 OE1 125.4 48.7 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CD A 307 CD REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 10 OE2 REMARK 620 2 ASP A 14 OD1 72.2 REMARK 620 3 ASP A 14 OD2 87.6 45.4 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CD B 308 CD REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 25 OE2 REMARK 620 2 GLU A 25 OE1 55.3 REMARK 620 3 GLN B 14 OE1 99.3 91.2 REMARK 620 4 HIS B 16 NE2 143.0 88.0 74.1 REMARK 620 5 HOH B 533 O 98.9 152.8 84.0 116.1 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CD B 302 CD REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER B 52 OG REMARK 620 2 HIS B 54 NE2 86.9 REMARK 620 3 HIS B 79 ND1 83.3 84.0 REMARK 620 4 HOH B 564 O 80.1 77.0 155.3 REMARK 620 5 HOH B 565 O 158.0 76.8 109.2 81.9 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD E 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD B 302 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD C 303 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD D 304 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD D 305 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD C 306 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD A 307 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC8 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD B 308 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC9 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD D 309 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD B 310 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD A 311 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD A 312 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD C 313 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD C 314 REMARK 800 REMARK 800 SITE_IDENTIFIER: BC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CD C 315 REMARK 999 REMARK 999 SEQUENCE REMARK 999 BASE NUMBERING CORRESPONDS TO STANDARD LAMBDA ATT SITE COORDINATES. REMARK 999 BASES 19 - 47 ARE THOSE FOUND IN THE LAMBDA ATT SITE. THE TOP REMARK 999 STRAND (CHAINS D AND E) WAS SYNTHESIZED AS TWO OLIGONUCLEOTIDES, REMARK 999 RESULTING IN A NICK BETWEEN BASES 29 AND 30. THE BOTTOM STRAND REMARK 999 (CHAIN C) WAS SYNTHESIZED AS A SINGLE 35 MER AND HAS BEEN ASSIGNED REMARK 999 NEGATIVE RESIDUE NUMBERS SUCH THAT BASES WITH THE SAME ABSOLUTE REMARK 999 VALUE ARE PAIRED. THE CRYSTALS PACK TO FORM A PSEUDO-CONTINUOUS REMARK 999 HELIX, WITH THE OVERHANGING BASE 15 OF THE TOP STRAND PAIRED TO THE REMARK 999 OVERHANGING BASE -50 OF A 21 NEIGHBORING COMPLEX'S BOTTOM STRAND. DBREF 1IHF A 1 99 UNP P0A6X7 IHFA_ECOLI 1 99 DBREF 1IHF B 1 94 UNP P0A6Y1 IHFB_ECOLI 1 94 DBREF 1IHF C -50 -16 PDB 1IHF 1IHF -50 -16 DBREF 1IHF D 15 29 PDB 1IHF 1IHF 15 29 DBREF 1IHF E 30 49 PDB 1IHF 1IHF 30 49 SEQRES 1 C 35 DC DG DG DT DG DC DA DA DC DA DA DA DT SEQRES 2 C 35 DT DG DA DT DA DA DG DC DA DA DT DG DC SEQRES 3 C 35 DT DT DT DT DT DT DG DG DC SEQRES 1 D 15 DG DG DC DC DA DA DA DA DA DA DG DC DA SEQRES 2 D 15 DT DT SEQRES 1 E 20 DG DC DT DT DA DT DC DA DA DT DT DT DG SEQRES 2 E 20 DT DT DG DC DA DC DC SEQRES 1 A 99 MET ALA LEU THR LYS ALA GLU MET SER GLU TYR LEU PHE SEQRES 2 A 99 ASP LYS LEU GLY LEU SER LYS ARG ASP ALA LYS GLU LEU SEQRES 3 A 99 VAL GLU LEU PHE PHE GLU GLU ILE ARG ARG ALA LEU GLU SEQRES 4 A 99 ASN GLY GLU GLN VAL LYS LEU SER GLY PHE GLY ASN PHE SEQRES 5 A 99 ASP LEU ARG ASP LYS ASN GLN ARG PRO GLY ARG ASN PRO SEQRES 6 A 99 LYS THR GLY GLU ASP ILE PRO ILE THR ALA ARG ARG VAL SEQRES 7 A 99 VAL THR PHE ARG PRO GLY GLN LYS LEU LYS SER ARG VAL SEQRES 8 A 99 GLU ASN ALA SER PRO LYS ASP GLU SEQRES 1 B 94 MET THR LYS SER GLU LEU ILE GLU ARG LEU ALA THR GLN SEQRES 2 B 94 GLN SER HIS ILE PRO ALA LYS THR VAL GLU ASP ALA VAL SEQRES 3 B 94 LYS GLU MET LEU GLU HIS MET ALA SER THR LEU ALA GLN SEQRES 4 B 94 GLY GLU ARG ILE GLU ILE ARG GLY PHE GLY SER PHE SER SEQRES 5 B 94 LEU HIS TYR ARG ALA PRO ARG THR GLY ARG ASN PRO LYS SEQRES 6 B 94 THR GLY ASP LYS VAL GLU LEU GLU GLY LYS TYR VAL PRO SEQRES 7 B 94 HIS PHE LYS PRO GLY LYS GLU LEU ARG ASP ARG ALA ASN SEQRES 8 B 94 ILE TYR GLY HET CD C 303 1 HET CD C 306 1 HET CD C 313 1 HET CD C 314 1 HET CD C 315 1 HET CD D 304 1 HET CD D 305 1 HET CD D 309 1 HET CD E 301 1 HET CD A 307 1 HET CD A 311 1 HET CD A 312 1 HET CD B 302 1 HET CD B 308 1 HET CD B 310 1 HETNAM CD CADMIUM ION FORMUL 6 CD 15(CD 2+) FORMUL 21 HOH *385(H2 O) HELIX 1 1 LYS A 5 LEU A 16 1 12 HELIX 2 2 LYS A 20 GLU A 39 1 20 HELIX 3 3 GLN A 85 GLU A 92 1 8 HELIX 4 4 LYS B 3 GLN B 13 1 11 HELIX 5 5 ALA B 19 ALA B 38 1 20 HELIX 6 6 LYS B 84 ALA B 90 1 7 SHEET 1 A 3 VAL A 44 LEU A 46 0 SHEET 2 A 3 GLY A 50 LYS A 57 -1 N PHE A 52 O VAL A 44 SHEET 3 A 3 ARG A 76 PRO A 83 -1 N ARG A 82 O ASN A 51 SHEET 1 B 2 ARG A 60 ARG A 63 0 SHEET 2 B 2 ASP A 70 ILE A 73 -1 N ILE A 73 O ARG A 60 SHEET 1 C 3 ILE B 43 ILE B 45 0 SHEET 2 C 3 GLY B 49 ARG B 56 -1 N PHE B 51 O ILE B 43 SHEET 3 C 3 LYS B 75 PRO B 82 -1 N LYS B 81 O SER B 50 SHEET 1 D 2 ARG B 59 ARG B 62 0 SHEET 2 D 2 LYS B 69 LEU B 72 -1 N LEU B 72 O ARG B 59 LINK N7 DG C -49 CD CD C 303 1555 1555 2.41 LINK N7 DA C -41 CD CD C 313 1555 1555 2.41 LINK N7 DG C -36 CD CD C 314 1555 1555 2.08 LINK N7 DG C -18 CD CD C 306 1555 1555 2.53 LINK CD CD C 303 O HOH C 710 1555 1555 2.06 LINK CD CD C 306 O HOH C 519 1555 1555 2.18 LINK CD CD C 306 O HOH C 520 1555 1555 3.12 LINK CD CD C 306 O HOH C 525 1555 1555 2.63 LINK CD CD C 314 O HOH C 573 1555 1555 2.65 LINK CD CD C 314 O HOH C 574 1555 1555 2.43 LINK CD CD C 315 O HOH C 520 1555 1555 2.49 LINK O HOH C 424 CD CD E 301 1555 1555 2.37 LINK N7 DG D 15 CD CD D 305 1555 1555 2.18 LINK N7 DA D 24 CD CD D 309 1555 1555 2.34 LINK OP2 DT D 28 CD CD D 304 1555 1555 1.98 LINK CD CD D 304 O HOH D 641 1555 1555 2.14 LINK CD CD D 304 O HOH D 642 1555 1555 2.13 LINK CD CD D 304 OG1 THR B 60 1555 4545 2.31 LINK CD CD D 304 O HOH B 682 1555 4545 3.14 LINK CD CD D 305 O HOH D 521 1555 1555 2.22 LINK CD CD D 305 O HOH D 522 1555 1555 2.20 LINK CD CD D 309 O HOH D 450 1555 1555 2.37 LINK CD CD D 309 O HOH D 456 1555 1555 2.48 LINK CD CD D 309 O HOH D 457 1555 1555 2.53 LINK N7 DG E 30 CD CD E 301 1555 1555 2.30 LINK CD CD E 301 O HOH E 425 1555 1555 2.24 LINK CD CD E 301 O HOH E 662 1555 1555 2.19 LINK CD CD E 301 OE2 GLU B 73 1555 4545 2.80 LINK CD CD E 301 OE1 GLU B 73 1555 4545 2.32 LINK O ALA A 2 CD CD A 311 1555 1555 2.63 LINK OE2 GLU A 7 CD CD A 311 1555 1555 2.14 LINK OE1 GLU A 7 CD CD B 310 1555 1555 2.97 LINK OE2 GLU A 10 CD CD A 307 1555 1555 2.10 LINK OD1 ASP A 14 CD CD A 307 1555 1555 2.94 LINK OD2 ASP A 14 CD CD A 307 1555 1555 2.71 LINK OE2 GLU A 25 CD CD B 308 1555 1555 2.26 LINK OE1 GLU A 25 CD CD B 308 1555 1555 2.44 LINK CD CD A 311 O HOH A 555 1555 1555 2.62 LINK CD CD A 311 OE2 GLU B 41 1555 1555 3.05 LINK OE1 GLN B 14 CD CD B 308 1555 1555 2.25 LINK NE2 HIS B 16 CD CD B 308 1555 1555 2.22 LINK OE2 GLU B 41 CD CD B 310 1555 1555 2.58 LINK OE1 GLU B 41 CD CD B 310 1555 1555 2.75 LINK OG SER B 52 CD CD B 302 1555 1555 2.75 LINK NE2 HIS B 54 CD CD B 302 1555 1555 2.42 LINK ND1 HIS B 79 CD CD B 302 1555 1555 2.80 LINK CD CD B 302 O HOH B 564 1555 1555 2.15 LINK CD CD B 302 O HOH B 565 1555 1555 2.05 LINK CD CD B 308 O HOH B 533 1555 1555 2.30 SITE 1 AC1 5 GLU B 73 HOH C 424 DG E 30 HOH E 425 SITE 2 AC1 5 HOH E 662 SITE 1 AC2 5 SER B 52 HIS B 54 HIS B 79 HOH B 564 SITE 2 AC2 5 HOH B 565 SITE 1 AC3 2 DG C -49 HOH C 710 SITE 1 AC4 4 THR B 60 DT D 28 HOH D 641 HOH D 642 SITE 1 AC5 3 DG D 15 HOH D 521 HOH D 522 SITE 1 AC6 3 DG C -18 HOH C 519 HOH C 525 SITE 1 AC7 2 GLU A 10 ASP A 14 SITE 1 AC8 4 GLU A 25 GLN B 14 HIS B 16 HOH B 533 SITE 1 AC9 4 DA D 24 HOH D 450 HOH D 456 HOH D 457 SITE 1 BC1 2 GLU A 7 GLU B 41 SITE 1 BC2 4 ALA A 2 GLU A 7 HOH A 555 GLU B 41 SITE 1 BC3 2 ARG A 21 ASP A 22 SITE 1 BC4 1 DA C -41 SITE 1 BC5 3 DG C -36 HOH C 573 HOH C 574 SITE 1 BC6 2 DG C -18 HOH C 520 CRYST1 47.360 59.920 180.800 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 0.021115 0.000000 0.000000 0.00000 SCALE2 0.000000 0.016689 0.000000 0.00000 SCALE3 0.000000 0.000000 0.005531 0.00000