HEADER RNA BINDING PROTEIN 01-JUN-11 2YLC TITLE STRUCTURE OF SALMONELLA TYPHIMURIUM HFQ IN COMPLEX WITH U6 RNA COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN HFQ; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: RESIDUES 1-72; COMPND 5 SYNONYM: HOST FACTOR-I PROTEIN, HF-I, HFQ PROTEIN; COMPND 6 ENGINEERED: YES; COMPND 7 OTHER_DETAILS: THE SEQUENCE IS PRECEDED BY A GA TAG REMAINING FROM COMPND 8 THE PURIFICATION TAG. SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SALMONELLA ENTERICA SUBSP. ENTERICA SEROVAR SOURCE 3 TYPHIMURIUM; SOURCE 4 ORGANISM_TAXID: 99287; SOURCE 5 STRAIN: LT2; SOURCE 6 ATCC: 700720; SOURCE 7 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 8 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 9 EXPRESSION_SYSTEM_STRAIN: BL21(DE3)GOLD; SOURCE 10 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 11 EXPRESSION_SYSTEM_PLASMID: PET M60 KEYWDS RNA-BINDING PROTEIN, LSM PROTEIN, RNA CHAPERONE, RNA BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR E.SAUER,O.WEICHENRIEDER REVDAT 4 20-DEC-23 2YLC 1 REMARK REVDAT 3 30-OCT-19 2YLC 1 REMARK LINK REVDAT 2 24-AUG-11 2YLC 1 JRNL REVDAT 1 20-JUL-11 2YLC 0 JRNL AUTH E.SAUER,O.WEICHENRIEDER JRNL TITL STRUCTURAL BASIS FOR RNA 3' END RECOGNITION BY HFQ JRNL REF PROC.NATL.ACAD.SCI.USA V. 108 13065 2011 JRNL REFN ISSN 0027-8424 JRNL PMID 21737752 JRNL DOI 10.1073/PNAS.1103420108 REMARK 2 REMARK 2 RESOLUTION. 1.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.60 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.990 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 3 NUMBER OF REFLECTIONS : 15112 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.134 REMARK 3 R VALUE (WORKING SET) : 0.132 REMARK 3 FREE R VALUE : 0.182 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 762 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 30.6035 - 2.2230 1.00 2947 154 0.1407 0.1798 REMARK 3 2 2.2230 - 1.7645 1.00 2845 156 0.1003 0.1723 REMARK 3 3 1.7645 - 1.5414 1.00 2857 164 0.1194 0.1712 REMARK 3 4 1.5414 - 1.4005 1.00 2847 149 0.1427 0.2025 REMARK 3 5 1.4005 - 1.3001 1.00 2854 139 0.1730 0.2290 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.00 REMARK 3 SHRINKAGE RADIUS : 0.89 REMARK 3 K_SOL : 0.45 REMARK 3 B_SOL : 46.97 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.140 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 18.330 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 13.31 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 19.40 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.63280 REMARK 3 B22 (A**2) : -0.63280 REMARK 3 B33 (A**2) : 1.26560 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.013 570 REMARK 3 ANGLE : 1.500 774 REMARK 3 CHIRALITY : 0.088 94 REMARK 3 PLANARITY : 0.010 95 REMARK 3 DIHEDRAL : 14.853 216 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS WERE REFINED IN THE RIDING REMARK 3 POSITIONS. B FACTORS WERE REFINED ANISOTROPICALLY FOR NON- REMARK 3 HYDROGEN ATOMS. THE FOLLOWING RESIDUES WERE MODELED AS DOUBLE REMARK 3 CONFORMATIONS. CHAIN A, RESIDUE 27. THE FOLLOWING RESIDUES ARE REMARK 3 DISORDERED. CHAIN A, RESIDUES 1 TO 4, 71 TO 72. THE DENSITY FOR REMARK 3 THE HEXAURIDINE RNA IS AVERAGED AROUND THE SIXFOLD AXIS. THE REMARK 3 ASYMMETRIC UNIT CONTAINS ONLY ONE OF THE SIX URIDINES WITH A REMARK 3 PHOSPHATE OCCUPANCY OF 5 OUT OF 6, AND WITH COVALENT BONDS TO REMARK 3 ITS NUCLEOTIDE NEIGHBORS. THE BIOLOGICAL UNIT IS AN HFQ HEXAMER REMARK 3 BOUND TO THE HEXAURIDINE RNA SUBSTRATE. REMARK 4 REMARK 4 2YLC COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 01-JUN-11. REMARK 100 THE DEPOSITION ID IS D_1290048508. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 23-JUN-10 REMARK 200 TEMPERATURE (KELVIN) : 90 REMARK 200 PH : 8.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SLS REMARK 200 BEAMLINE : X10SA REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9790 REMARK 200 MONOCHROMATOR : SI(111) REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XSCALE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 15112 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.300 REMARK 200 RESOLUTION RANGE LOW (A) : 30.600 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 9.100 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.07700 REMARK 200 FOR THE DATA SET : 16.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.30 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.40 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 7.40 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.69000 REMARK 200 FOR SHELL : 3.600 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 2YLB REMARK 200 REMARK 200 REMARK: NONE REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 40.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.10 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M NASCN, 20% PEG3350, PH 8.0 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 6 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 -X,-Y,Z REMARK 290 5555 Y,-X+Y,Z REMARK 290 6555 X-Y,X,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 -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 0.00000 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 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 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 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: HEXAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 11160 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 18320 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -118.1 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 -0.500000 0.866025 0.000000 0.00000 REMARK 350 BIOMT2 2 -0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 0.500000 -0.866025 0.000000 0.00000 REMARK 350 BIOMT2 3 0.866025 0.500000 0.000000 0.00000 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT3 4 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 5 -0.500000 -0.866025 0.000000 0.00000 REMARK 350 BIOMT2 5 0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 5 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 6 0.500000 0.866025 0.000000 0.00000 REMARK 350 BIOMT2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 350 BIOMT3 6 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 GLY A -1 REMARK 465 ALA A 0 REMARK 465 MET A 1 REMARK 465 ALA A 2 REMARK 465 LYS A 3 REMARK 465 GLY A 4 REMARK 465 HIS A 71 REMARK 465 SER A 72 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 P U A 1073 O3' U A 1073 5555 1.64 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 ASP A 40 -157.07 -142.34 REMARK 500 ASN A 48 -120.93 -140.38 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 A2009 DISTANCE = 5.93 ANGSTROMS REMARK 610 REMARK 610 MISSING HETEROATOM REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 610 I=INSERTION CODE): REMARK 610 M RES C SSEQI REMARK 610 U A 1073 REMARK 650 REMARK 650 HELIX REMARK 650 DETERMINATION METHOD: AUTHOR PROVIDED. REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SCN A 1071 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SCN A 1072 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE U A 1073 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2YLB RELATED DB: PDB REMARK 900 STRUCTURE OF SALMONELLA TYPHIMURIUM HFQ AT 1.15 A REMARK 999 REMARK 999 SEQUENCE REMARK 999 THE SEQUENCE IS PRECEDED BY A GA TAG REMAINING FROM THE REMARK 999 PURIFICATION TAG DBREF 2YLC A 1 72 UNP P0A1R0 HFQ_SALTY 1 72 SEQADV 2YLC GLY A -1 UNP P0A1R0 EXPRESSION TAG SEQADV 2YLC ALA A 0 UNP P0A1R0 EXPRESSION TAG SEQRES 1 A 74 GLY ALA MET ALA LYS GLY GLN SER LEU GLN ASP PRO PHE SEQRES 2 A 74 LEU ASN ALA LEU ARG ARG GLU ARG VAL PRO VAL SER ILE SEQRES 3 A 74 TYR LEU VAL ASN GLY ILE LYS LEU GLN GLY GLN ILE GLU SEQRES 4 A 74 SER PHE ASP GLN PHE VAL ILE LEU LEU LYS ASN THR VAL SEQRES 5 A 74 SER GLN MET VAL TYR LYS HIS ALA ILE SER THR VAL VAL SEQRES 6 A 74 PRO SER ARG PRO VAL SER HIS HIS SER HET SCN A1071 3 HET SCN A1072 3 HET U A1073 30 HETNAM SCN THIOCYANATE ION HETNAM U URIDINE-5'-MONOPHOSPHATE FORMUL 2 SCN 2(C N S 1-) FORMUL 4 U C9 H13 N2 O9 P FORMUL 5 HOH *50(H2 O) HELIX 1 1 GLN A 8 GLU A 18 1 11 SHEET 1 AA 5 SER A 51 TYR A 55 0 SHEET 2 AA 5 VAL A 43 LYS A 47 -1 O ILE A 44 N VAL A 54 SHEET 3 AA 5 LYS A 31 PHE A 39 -1 O GLN A 35 N LYS A 47 SHEET 4 AA 5 VAL A 22 LEU A 26 -1 O VAL A 22 N GLY A 34 SHEET 5 AA 5 ILE A 59 PRO A 64 -1 N SER A 60 O TYR A 25 SITE 1 AC1 3 GLN A 8 LYS A 56 U A1073 SITE 1 AC2 6 ARG A 19 GLN A 35 LYS A 47 SER A 51 SITE 2 AC2 6 VAL A 68 HIS A 70 SITE 1 AC3 10 GLN A 8 GLN A 41 PHE A 42 TYR A 55 SITE 2 AC3 10 LYS A 56 HIS A 57 SCN A1071 HOH A2035 SITE 3 AC3 10 HOH A2048 HOH A2049 CRYST1 61.190 61.190 28.350 90.00 90.00 120.00 P 6 6 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 0.016343 0.009435 0.000000 0.00000 SCALE2 0.000000 0.018871 0.000000 0.00000 SCALE3 0.000000 0.000000 0.035273 0.00000