1KQ1 - Header Asymmetric Unit

HEADER TRANSLATION 03-JAN-02 1KQ1

TITLE 1.55 A CRYSTAL STRUCTURE OF THE PLEIOTROPIC TRANSLATIONAL TITLE 2 REGULATOR, HFQ

COMPND MOL_ID: 1; COMPND 2 MOLECULE: HOST FACTOR FOR Q BETA; COMPND 3 CHAIN: A, B, H, I, K, M, S, T, Y, N, R, W; COMPND 4 SYNONYM: HFQ; COMPND 5 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STAPHYLOCOCCUS AUREUS; SOURCE 3 ORGANISM_TAXID: 1280; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID

KEYWDS HFQ, HEXAMER, RNA BINDING PROTEIN, TRANSLATIONAL REGULATOR, KEYWDS 2 SM MOTIF

EXPDTA X-RAY DIFFRACTION

AUTHOR M.A.SCHUMACHER,R.F.PEARSON,T.MOLLER,P.VALENTIN-HANSEN, AUTHOR 2 R.G.BRENNAN

REVDAT 2 24-FEB-09 1KQ1 1 VERSN REVDAT 1 10-JUL-02 1KQ1 0

JRNL AUTH M.A.SCHUMACHER,R.F.PEARSON,T.MOLLER, JRNL AUTH 2 P.VALENTIN-HANSEN,R.G.BRENNAN JRNL TITL STRUCTURES OF THE PLEIOTROPIC TRANSLATIONAL JRNL TITL 2 REGULATOR HFQ AND AN HFQ-RNA COMPLEX: A BACTERIAL JRNL TITL 3 SM-LIKE PROTEIN. JRNL REF EMBO J. V. 21 3546 2002 JRNL REFN ISSN 0261-4189 JRNL PMID 12093755 JRNL DOI 10.1093/EMBOJ/CDF322

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. 1.55 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 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 : ENGH AND HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.55 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 22.37 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1029855.350 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 99.6 REMARK 3 NUMBER OF REFLECTIONS : 115018 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 SET) : 0.237 REMARK 3 FREE R VALUE : 0.259 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 5801 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.003 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.55 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.65 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 100.00 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 18109 REMARK 3 BIN R VALUE (WORKING SET) : 0.3400 REMARK 3 BIN FREE R VALUE : 0.3740 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.40 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 1029 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.012 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 5999 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 612 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 22.70 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 23.90 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.86000 REMARK 3 B22 (A**2) : -0.04000 REMARK 3 B33 (A**2) : -0.81000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 3.42000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.22 REMARK 3 ESD FROM SIGMAA (A) : 0.10 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.25 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.14 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.013 REMARK 3 BOND ANGLES (DEGREES) : 1.60 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 25.30 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.96 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED 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 : FLAT MODEL REMARK 3 KSOL : 0.46 REMARK 3 BSOL : 63.34 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : DNA-RNA_REP.PARAM REMARK 3 PARAMETER FILE 3 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 4 : ION.PARAM REMARK 3 PARAMETER FILE 5 : ACY_PAR.TXT REMARK 3 PARAMETER FILE 6 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : DNA-RNA.TOP REMARK 3 TOPOLOGY FILE 3 : WATER.TOP REMARK 3 TOPOLOGY FILE 4 : ION.TOP REMARK 3 TOPOLOGY FILE 5 : ACY_TOP.TXT REMARK 3 TOPOLOGY FILE 6 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: RESIDUES 67 TO 77 ARE DISORDERED IN REMARK 3 ALL SUBUNITS AS ARE RESIDUES 1-5 IN 11 SUBUNITS.

REMARK 4 REMARK 4 1KQ1 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 16-JAN-02. REMARK 100 THE RCSB ID CODE IS RCSB015216.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 11-MAY-01 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL9-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 115018 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.550 REMARK 200 RESOLUTION RANGE LOW (A) : 22.370 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04600 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 7.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.55 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.65 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.15800 REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SIR REMARK 200 SOFTWARE USED: PHASES REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 35.90 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.92 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULPHATE, SODIUM ACETATE, REMARK 280 PH 4.6, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 44.97500 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL

REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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: HFQ FORMS A HEXAMER (RESISTANT TO DENATURANTS) AND THERE REMARK 300 ARE TWO HEXAMERS IN THE CRYSTALLOGRAPHIC 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: HEXAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 8380 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 18100 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -44.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, H, I, K, M 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 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: HEXAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 8330 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 17670 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -52.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: S, T, Y, N, R, W 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 ILE A 2 REMARK 465 ALA A 3 REMARK 465 ASN A 4 REMARK 465 GLU A 5 REMARK 465 GLU A 66 REMARK 465 THR A 67 REMARK 465 GLU A 68 REMARK 465 GLY A 69 REMARK 465 GLN A 70 REMARK 465 ALA A 71 REMARK 465 SER A 72 REMARK 465 THR A 73 REMARK 465 GLU A 74 REMARK 465 SER A 75 REMARK 465 GLU A 76 REMARK 465 GLU A 77 REMARK 465 MET B 1 REMARK 465 ILE B 2 REMARK 465 ALA B 3 REMARK 465 ASN B 4 REMARK 465 GLU B 5 REMARK 465 THR B 67 REMARK 465 GLU B 68 REMARK 465 GLY B 69 REMARK 465 GLN B 70 REMARK 465 ALA B 71 REMARK 465 SER B 72 REMARK 465 THR B 73 REMARK 465 GLU B 74 REMARK 465 SER B 75 REMARK 465 GLU B 76 REMARK 465 GLU B 77 REMARK 465 THR H 67 REMARK 465 GLU H 68 REMARK 465 GLY H 69 REMARK 465 GLN H 70 REMARK 465 ALA H 71 REMARK 465 SER H 72 REMARK 465 THR H 73 REMARK 465 GLU H 74 REMARK 465 SER H 75 REMARK 465 GLU H 76 REMARK 465 GLU H 77 REMARK 465 MET I 1 REMARK 465 ILE I 2 REMARK 465 ALA I 3 REMARK 465 ASN I 4 REMARK 465 GLU I 5 REMARK 465 GLU I 66 REMARK 465 THR I 67 REMARK 465 GLU I 68 REMARK 465 GLY I 69 REMARK 465 GLN I 70 REMARK 465 ALA I 71 REMARK 465 SER I 72 REMARK 465 THR I 73 REMARK 465 GLU I 74 REMARK 465 SER I 75 REMARK 465 GLU I 76 REMARK 465 GLU I 77 REMARK 465 MET K 1 REMARK 465 ILE K 2 REMARK 465 ALA K 3 REMARK 465 ASN K 4 REMARK 465 GLU K 5 REMARK 465 THR K 67 REMARK 465 GLU K 68 REMARK 465 GLY K 69 REMARK 465 GLN K 70 REMARK 465 ALA K 71 REMARK 465 SER K 72 REMARK 465 THR K 73 REMARK 465 GLU K 74 REMARK 465 SER K 75 REMARK 465 GLU K 76 REMARK 465 GLU K 77 REMARK 465 MET M 1 REMARK 465 ILE M 2 REMARK 465 ALA M 3 REMARK 465 ASN M 4 REMARK 465 GLU M 5 REMARK 465 THR M 67 REMARK 465 GLU M 68 REMARK 465 GLY M 69 REMARK 465 GLN M 70 REMARK 465 ALA M 71 REMARK 465 SER M 72 REMARK 465 THR M 73 REMARK 465 GLU M 74 REMARK 465 SER M 75 REMARK 465 GLU M 76 REMARK 465 GLU M 77 REMARK 465 MET S 1 REMARK 465 ILE S 2 REMARK 465 ALA S 3 REMARK 465 ASN S 4 REMARK 465 GLU S 5 REMARK 465 THR S 67 REMARK 465 GLU S 68 REMARK 465 GLY S 69 REMARK 465 GLN S 70 REMARK 465 ALA S 71 REMARK 465 SER S 72 REMARK 465 THR S 73 REMARK 465 GLU S 74 REMARK 465 SER S 75 REMARK 465 GLU S 76 REMARK 465 GLU S 77 REMARK 465 MET T 1 REMARK 465 ILE T 2 REMARK 465 ALA T 3 REMARK 465 ASN T 4 REMARK 465 GLU T 5 REMARK 465 THR T 67 REMARK 465 GLU T 68 REMARK 465 GLY T 69 REMARK 465 GLN T 70 REMARK 465 ALA T 71 REMARK 465 SER T 72 REMARK 465 THR T 73 REMARK 465 GLU T 74 REMARK 465 SER T 75 REMARK 465 GLU T 76 REMARK 465 GLU T 77 REMARK 465 MET Y 1 REMARK 465 ILE Y 2 REMARK 465 ALA Y 3 REMARK 465 ASN Y 4 REMARK 465 GLU Y 5 REMARK 465 GLU Y 66 REMARK 465 THR Y 67 REMARK 465 GLU Y 68 REMARK 465 GLY Y 69 REMARK 465 GLN Y 70 REMARK 465 ALA Y 71 REMARK 465 SER Y 72 REMARK 465 THR Y 73 REMARK 465 GLU Y 74 REMARK 465 SER Y 75 REMARK 465 GLU Y 76 REMARK 465 GLU Y 77 REMARK 465 MET N 1 REMARK 465 ILE N 2 REMARK 465 ALA N 3 REMARK 465 ASN N 4 REMARK 465 GLU N 5 REMARK 465 THR N 67 REMARK 465 GLU N 68 REMARK 465 GLY N 69 REMARK 465 GLN N 70 REMARK 465 ALA N 71 REMARK 465 SER N 72 REMARK 465 THR N 73 REMARK 465 GLU N 74 REMARK 465 SER N 75 REMARK 465 GLU N 76 REMARK 465 GLU N 77 REMARK 465 MET R 1 REMARK 465 ILE R 2 REMARK 465 ALA R 3 REMARK 465 ASN R 4 REMARK 465 GLU R 5 REMARK 465 THR R 67 REMARK 465 GLU R 68 REMARK 465 GLY R 69 REMARK 465 GLN R 70 REMARK 465 ALA R 71 REMARK 465 SER R 72 REMARK 465 THR R 73 REMARK 465 GLU R 74 REMARK 465 SER R 75 REMARK 465 GLU R 76 REMARK 465 GLU R 77 REMARK 465 MET W 1 REMARK 465 ILE W 2 REMARK 465 ALA W 3 REMARK 465 ASN W 4 REMARK 465 GLU W 5 REMARK 465 THR W 67 REMARK 465 GLU W 68 REMARK 465 GLY W 69 REMARK 465 GLN W 70 REMARK 465 ALA W 71 REMARK 465 SER W 72 REMARK 465 THR W 73 REMARK 465 GLU W 74 REMARK 465 SER W 75 REMARK 465 GLU W 76 REMARK 465 GLU W 77

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 OE1 GLN N 49 O HOH N 102 2.06 REMARK 500 O HOH R 641 O HOH W 94 2.17 REMARK 500 O HOH N 92 O HOH Y 97 2.17 REMARK 500 OE2 GLU K 13 O HOH K 84 2.18 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 OE2 GLU H 5 NZ LYS K 16 2746 2.18 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 GLN K 49 72.07 34.65 REMARK 500 GLN N 49 89.63 -63.86 REMARK 500 ASP W 40 -159.80 -141.70 REMARK 500 GLN W 49 -85.33 -19.38 REMARK 500 REMARK 500 REMARK: NULL

REMARK 615 REMARK 615 ZERO OCCUPANCY ATOM REMARK 615 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 615 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 615 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 615 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 615 M RES C SSEQI REMARK 615 HOH K 89

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACY A 601 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACY T 602 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACY R 603 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACY H 604 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACY A 605

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1KQ2 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF AN HFQ-RNA COMPLEX

DBREF 1KQ1 A 1 77 UNP Q99UG9 Q99UG9_STAAM 1 77 DBREF 1KQ1 B 1 77 UNP Q99UG9 Q99UG9_STAAM 1 77 DBREF 1KQ1 H 1 77 UNP Q99UG9 Q99UG9_STAAM 1 77 DBREF 1KQ1 I 1 77 UNP Q99UG9 Q99UG9_STAAM 1 77 DBREF 1KQ1 K 1 77 UNP Q99UG9 Q99UG9_STAAM 1 77 DBREF 1KQ1 M 1 77 UNP Q99UG9 Q99UG9_STAAM 1 77 DBREF 1KQ1 S 1 77 UNP Q99UG9 Q99UG9_STAAM 1 77 DBREF 1KQ1 T 1 77 UNP Q99UG9 Q99UG9_STAAM 1 77 DBREF 1KQ1 Y 1 77 UNP Q99UG9 Q99UG9_STAAM 1 77 DBREF 1KQ1 N 1 77 UNP Q99UG9 Q99UG9_STAAM 1 77 DBREF 1KQ1 R 1 77 UNP Q99UG9 Q99UG9_STAAM 1 77 DBREF 1KQ1 W 1 77 UNP Q99UG9 Q99UG9_STAAM 1 77

SEQRES 1 A 77 MET ILE ALA ASN GLU ASN ILE GLN ASP LYS ALA LEU GLU SEQRES 2 A 77 ASN PHE LYS ALA ASN GLN THR GLU VAL THR VAL PHE PHE SEQRES 3 A 77 LEU ASN GLY PHE GLN MET LYS GLY VAL ILE GLU GLU TYR SEQRES 4 A 77 ASP LYS TYR VAL VAL SER LEU ASN SER GLN GLY LYS GLN SEQRES 5 A 77 HIS LEU ILE TYR LYS HIS ALA ILE SER THR TYR THR VAL SEQRES 6 A 77 GLU THR GLU GLY GLN ALA SER THR GLU SER GLU GLU SEQRES 1 B 77 MET ILE ALA ASN GLU ASN ILE GLN ASP LYS ALA LEU GLU SEQRES 2 B 77 ASN PHE LYS ALA ASN GLN THR GLU VAL THR VAL PHE PHE SEQRES 3 B 77 LEU ASN GLY PHE GLN MET LYS GLY VAL ILE GLU GLU TYR SEQRES 4 B 77 ASP LYS TYR VAL VAL SER LEU ASN SER GLN GLY LYS GLN SEQRES 5 B 77 HIS LEU ILE TYR LYS HIS ALA ILE SER THR TYR THR VAL SEQRES 6 B 77 GLU THR GLU GLY GLN ALA SER THR GLU SER GLU GLU SEQRES 1 H 77 MET ILE ALA ASN GLU ASN ILE GLN ASP LYS ALA LEU GLU SEQRES 2 H 77 ASN PHE LYS ALA ASN GLN THR GLU VAL THR VAL PHE PHE SEQRES 3 H 77 LEU ASN GLY PHE GLN MET LYS GLY VAL ILE GLU GLU TYR SEQRES 4 H 77 ASP LYS TYR VAL VAL SER LEU ASN SER GLN GLY LYS GLN SEQRES 5 H 77 HIS LEU ILE TYR LYS HIS ALA ILE SER THR TYR THR VAL SEQRES 6 H 77 GLU THR GLU GLY GLN ALA SER THR GLU SER GLU GLU SEQRES 1 I 77 MET ILE ALA ASN GLU ASN ILE GLN ASP LYS ALA LEU GLU SEQRES 2 I 77 ASN PHE LYS ALA ASN GLN THR GLU VAL THR VAL PHE PHE SEQRES 3 I 77 LEU ASN GLY PHE GLN MET LYS GLY VAL ILE GLU GLU TYR SEQRES 4 I 77 ASP LYS TYR VAL VAL SER LEU ASN SER GLN GLY LYS GLN SEQRES 5 I 77 HIS LEU ILE TYR LYS HIS ALA ILE SER THR TYR THR VAL SEQRES 6 I 77 GLU THR GLU GLY GLN ALA SER THR GLU SER GLU GLU SEQRES 1 K 77 MET ILE ALA ASN GLU ASN ILE GLN ASP LYS ALA LEU GLU SEQRES 2 K 77 ASN PHE LYS ALA ASN GLN THR GLU VAL THR VAL PHE PHE SEQRES 3 K 77 LEU ASN GLY PHE GLN MET LYS GLY VAL ILE GLU GLU TYR SEQRES 4 K 77 ASP LYS TYR VAL VAL SER LEU ASN SER GLN GLY LYS GLN SEQRES 5 K 77 HIS LEU ILE TYR LYS HIS ALA ILE SER THR TYR THR VAL SEQRES 6 K 77 GLU THR GLU GLY GLN ALA SER THR GLU SER GLU GLU SEQRES 1 M 77 MET ILE ALA ASN GLU ASN ILE GLN ASP LYS ALA LEU GLU SEQRES 2 M 77 ASN PHE LYS ALA ASN GLN THR GLU VAL THR VAL PHE PHE SEQRES 3 M 77 LEU ASN GLY PHE GLN MET LYS GLY VAL ILE GLU GLU TYR SEQRES 4 M 77 ASP LYS TYR VAL VAL SER LEU ASN SER GLN GLY LYS GLN SEQRES 5 M 77 HIS LEU ILE TYR LYS HIS ALA ILE SER THR TYR THR VAL SEQRES 6 M 77 GLU THR GLU GLY GLN ALA SER THR GLU SER GLU GLU SEQRES 1 S 77 MET ILE ALA ASN GLU ASN ILE GLN ASP LYS ALA LEU GLU SEQRES 2 S 77 ASN PHE LYS ALA ASN GLN THR GLU VAL THR VAL PHE PHE SEQRES 3 S 77 LEU ASN GLY PHE GLN MET LYS GLY VAL ILE GLU GLU TYR SEQRES 4 S 77 ASP LYS TYR VAL VAL SER LEU ASN SER GLN GLY LYS GLN SEQRES 5 S 77 HIS LEU ILE TYR LYS HIS ALA ILE SER THR TYR THR VAL SEQRES 6 S 77 GLU THR GLU GLY GLN ALA SER THR GLU SER GLU GLU SEQRES 1 T 77 MET ILE ALA ASN GLU ASN ILE GLN ASP LYS ALA LEU GLU SEQRES 2 T 77 ASN PHE LYS ALA ASN GLN THR GLU VAL THR VAL PHE PHE SEQRES 3 T 77 LEU ASN GLY PHE GLN MET LYS GLY VAL ILE GLU GLU TYR SEQRES 4 T 77 ASP LYS TYR VAL VAL SER LEU ASN SER GLN GLY LYS GLN SEQRES 5 T 77 HIS LEU ILE TYR LYS HIS ALA ILE SER THR TYR THR VAL SEQRES 6 T 77 GLU THR GLU GLY GLN ALA SER THR GLU SER GLU GLU SEQRES 1 Y 77 MET ILE ALA ASN GLU ASN ILE GLN ASP LYS ALA LEU GLU SEQRES 2 Y 77 ASN PHE LYS ALA ASN GLN THR GLU VAL THR VAL PHE PHE SEQRES 3 Y 77 LEU ASN GLY PHE GLN MET LYS GLY VAL ILE GLU GLU TYR SEQRES 4 Y 77 ASP LYS TYR VAL VAL SER LEU ASN SER GLN GLY LYS GLN SEQRES 5 Y 77 HIS LEU ILE TYR LYS HIS ALA ILE SER THR TYR THR VAL SEQRES 6 Y 77 GLU THR GLU GLY GLN ALA SER THR GLU SER GLU GLU SEQRES 1 N 77 MET ILE ALA ASN GLU ASN ILE GLN ASP LYS ALA LEU GLU SEQRES 2 N 77 ASN PHE LYS ALA ASN GLN THR GLU VAL THR VAL PHE PHE SEQRES 3 N 77 LEU ASN GLY PHE GLN MET LYS GLY VAL ILE GLU GLU TYR SEQRES 4 N 77 ASP LYS TYR VAL VAL SER LEU ASN SER GLN GLY LYS GLN SEQRES 5 N 77 HIS LEU ILE TYR LYS HIS ALA ILE SER THR TYR THR VAL SEQRES 6 N 77 GLU THR GLU GLY GLN ALA SER THR GLU SER GLU GLU SEQRES 1 R 77 MET ILE ALA ASN GLU ASN ILE GLN ASP LYS ALA LEU GLU SEQRES 2 R 77 ASN PHE LYS ALA ASN GLN THR GLU VAL THR VAL PHE PHE SEQRES 3 R 77 LEU ASN GLY PHE GLN MET LYS GLY VAL ILE GLU GLU TYR SEQRES 4 R 77 ASP LYS TYR VAL VAL SER LEU ASN SER GLN GLY LYS GLN SEQRES 5 R 77 HIS LEU ILE TYR LYS HIS ALA ILE SER THR TYR THR VAL SEQRES 6 R 77 GLU THR GLU GLY GLN ALA SER THR GLU SER GLU GLU SEQRES 1 W 77 MET ILE ALA ASN GLU ASN ILE GLN ASP LYS ALA LEU GLU SEQRES 2 W 77 ASN PHE LYS ALA ASN GLN THR GLU VAL THR VAL PHE PHE SEQRES 3 W 77 LEU ASN GLY PHE GLN MET LYS GLY VAL ILE GLU GLU TYR SEQRES 4 W 77 ASP LYS TYR VAL VAL SER LEU ASN SER GLN GLY LYS GLN SEQRES 5 W 77 HIS LEU ILE TYR LYS HIS ALA ILE SER THR TYR THR VAL SEQRES 6 W 77 GLU THR GLU GLY GLN ALA SER THR GLU SER GLU GLU

HET ACY A 601 4 HET ACY T 602 4 HET ACY R 603 4 HET ACY H 604 4 HET ACY A 605 4

HETNAM ACY ACETIC ACID

FORMUL 13 ACY 5(C2 H4 O2) FORMUL 18 HOH *592(H2 O)

HELIX 1 1 ASN A 6 GLN A 19 1 14 HELIX 2 2 ASN B 6 GLN B 19 1 14 HELIX 3 3 ASN H 6 ASN H 18 1 13 HELIX 4 4 ASN I 6 ASN I 18 1 13 HELIX 5 5 ASN K 6 GLN K 19 1 14 HELIX 6 6 ASN M 6 ASN M 18 1 13 HELIX 7 7 ASN S 6 GLN S 19 1 14 HELIX 8 8 ASN T 6 ASN T 18 1 13 HELIX 9 9 ASN Y 6 ASN Y 18 1 13 HELIX 10 10 ASN N 6 GLN N 19 1 14 HELIX 11 11 ASN R 6 GLN R 19 1 14 HELIX 12 12 ASN W 6 ASN W 18 1 13

SHEET 1 A31 GLU A 21 PHE A 26 0 SHEET 2 A31 GLN A 31 TYR A 39 -1 O MET A 32 N VAL A 24 SHEET 3 A31 VAL A 43 SER A 48 -1 O ASN A 47 N VAL A 35 SHEET 4 A31 LYS A 51 TYR A 56 -1 O ILE A 55 N VAL A 44 SHEET 5 A31 ILE H 60 VAL H 65 -1 O TYR H 63 N LEU A 54 SHEET 6 A31 GLU H 21 PHE H 26 -1 N PHE H 25 O SER H 61 SHEET 7 A31 GLN H 31 TYR H 39 -1 O GLY H 34 N VAL H 22 SHEET 8 A31 VAL H 43 SER H 48 -1 O SER H 45 N GLU H 38 SHEET 9 A31 LYS H 51 TYR H 56 -1 O HIS H 53 N LEU H 46 SHEET 10 A31 ILE I 60 THR I 64 -1 O TYR I 63 N LEU H 54 SHEET 11 A31 GLU I 21 PHE I 26 -1 N PHE I 25 O SER I 61 SHEET 12 A31 GLN I 31 TYR I 39 -1 O MET I 32 N VAL I 24 SHEET 13 A31 VAL I 43 SER I 48 -1 O SER I 45 N GLU I 38 SHEET 14 A31 LYS I 51 TYR I 56 -1 O ILE I 55 N VAL I 44 SHEET 15 A31 ILE K 60 VAL K 65 -1 O TYR K 63 N LEU I 54 SHEET 16 A31 GLU K 21 PHE K 26 -1 N PHE K 25 O SER K 61 SHEET 17 A31 GLN K 31 TYR K 39 -1 O MET K 32 N VAL K 24 SHEET 18 A31 VAL K 43 SER K 48 -1 O SER K 45 N GLU K 38 SHEET 19 A31 LYS K 51 TYR K 56 -1 O ILE K 55 N VAL K 44 SHEET 20 A31 ILE M 60 VAL M 65 -1 O TYR M 63 N LEU K 54 SHEET 21 A31 GLU M 21 PHE M 26 -1 N PHE M 25 O SER M 61 SHEET 22 A31 GLN M 31 TYR M 39 -1 O GLY M 34 N VAL M 22 SHEET 23 A31 VAL M 43 SER M 48 -1 O SER M 45 N GLU M 38 SHEET 24 A31 LYS M 51 TYR M 56 -1 O ILE M 55 N VAL M 44 SHEET 25 A31 ILE B 60 VAL B 65 -1 N TYR B 63 O LEU M 54 SHEET 26 A31 VAL B 22 PHE B 26 -1 N PHE B 25 O SER B 61 SHEET 27 A31 GLN B 31 TYR B 39 -1 O GLY B 34 N VAL B 22 SHEET 28 A31 VAL B 43 SER B 48 -1 O SER B 45 N GLU B 38 SHEET 29 A31 LYS B 51 TYR B 56 -1 O ILE B 55 N VAL B 44 SHEET 30 A31 ILE A 60 THR A 64 -1 N TYR A 63 O LEU B 54 SHEET 31 A31 GLU A 21 PHE A 26 -1 N PHE A 25 O SER A 61 SHEET 1 B31 GLU S 21 PHE S 26 0 SHEET 2 B31 GLN S 31 TYR S 39 -1 O MET S 32 N VAL S 24 SHEET 3 B31 VAL S 43 SER S 48 -1 O SER S 45 N GLU S 38 SHEET 4 B31 LYS S 51 TYR S 56 -1 O ILE S 55 N VAL S 44 SHEET 5 B31 ILE Y 60 THR Y 64 -1 O TYR Y 63 N LEU S 54 SHEET 6 B31 GLU Y 21 PHE Y 26 -1 N PHE Y 25 O SER Y 61 SHEET 7 B31 GLN Y 31 TYR Y 39 -1 O MET Y 32 N VAL Y 24 SHEET 8 B31 VAL Y 43 SER Y 48 -1 O SER Y 45 N GLU Y 38 SHEET 9 B31 LYS Y 51 TYR Y 56 -1 O ILE Y 55 N VAL Y 44 SHEET 10 B31 ILE N 60 VAL N 65 -1 O TYR N 63 N LEU Y 54 SHEET 11 B31 GLU N 21 PHE N 26 -1 N PHE N 25 O SER N 61 SHEET 12 B31 GLN N 31 TYR N 39 -1 O MET N 32 N VAL N 24 SHEET 13 B31 VAL N 43 ASN N 47 -1 O ASN N 47 N VAL N 35 SHEET 14 B31 GLN N 52 TYR N 56 -1 O ILE N 55 N VAL N 44 SHEET 15 B31 ILE R 60 VAL R 65 -1 O TYR R 63 N LEU N 54 SHEET 16 B31 GLU R 21 PHE R 26 -1 N PHE R 25 O SER R 61 SHEET 17 B31 GLN R 31 TYR R 39 -1 O MET R 32 N VAL R 24 SHEET 18 B31 VAL R 43 SER R 48 -1 O SER R 45 N GLU R 38 SHEET 19 B31 LYS R 51 TYR R 56 -1 O ILE R 55 N VAL R 44 SHEET 20 B31 ILE W 60 VAL W 65 -1 O TYR W 63 N LEU R 54 SHEET 21 B31 GLU W 21 PHE W 26 -1 N PHE W 25 O SER W 61 SHEET 22 B31 GLN W 31 TYR W 39 -1 O GLY W 34 N VAL W 22 SHEET 23 B31 VAL W 43 SER W 48 -1 O SER W 45 N GLU W 38 SHEET 24 B31 LYS W 51 TYR W 56 -1 O ILE W 55 N VAL W 44 SHEET 25 B31 ILE T 60 VAL T 65 -1 N TYR T 63 O LEU W 54 SHEET 26 B31 GLU T 21 PHE T 26 -1 N PHE T 25 O SER T 61 SHEET 27 B31 GLN T 31 TYR T 39 -1 O MET T 32 N VAL T 24 SHEET 28 B31 VAL T 43 ASN T 47 -1 O SER T 45 N GLU T 38 SHEET 29 B31 GLN T 52 TYR T 56 -1 O ILE T 55 N VAL T 44 SHEET 30 B31 ILE S 60 VAL S 65 -1 N TYR S 63 O LEU T 54 SHEET 31 B31 GLU S 21 PHE S 26 -1 N PHE S 25 O SER S 61

SITE 1 AC1 6 TYR A 56 HIS A 58 HOH A 609 HOH A 613 SITE 2 AC1 6 LYS H 41 HOH H 662 SITE 1 AC2 6 PHE S 26 SER S 61 HOH S 79 PHE T 26 SITE 2 AC2 6 ASN T 28 PHE T 30 SITE 1 AC3 5 MET R 32 HIS R 53 HOH R 637 PHE W 25 SITE 2 AC3 5 THR W 62 SITE 1 AC4 6 PHE H 26 ASN H 28 PHE H 30 PHE I 26 SITE 2 AC4 6 SER I 61 HOH I 89 SITE 1 AC5 4 GLN A 19 VAL A 35 GLU A 37 HOH A 655

CRYST1 67.030 89.950 67.770 90.00 97.95 90.00 P 1 21 1 24

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 0.014919 0.000000 0.002083 0.00000

SCALE2 0.000000 0.011117 0.000000 0.00000

SCALE3 0.000000 0.000000 0.014899 0.00000