HEADER TRANSFERASE 20-AUG-09 3IQT TITLE STRUCTURE OF THE HPT DOMAIN OF SENSOR PROTEIN BARA FROM ESCHERICHIA TITLE 2 COLI CFT073. COMPND MOL_ID: 1; COMPND 2 MOLECULE: SIGNAL TRANSDUCTION HISTIDINE-PROTEIN KINASE BARA; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: HISTIDINE PHOSPHOTRANSFER DOMAIN; COMPND 5 EC: 2.7.13.3; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 199310; SOURCE 4 STRAIN: CFT073; SOURCE 5 GENE: BARA, C3349; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PMCSG19 KEYWDS HISTIDINE PHOSPHOTRANSFER DOMAIN, HTP, STRUCTURAL GENOMICS, PSI-2, KEYWDS 2 PROTEIN STRUCTURE INITIATIVE, MIDWEST CENTER FOR STRUCTURAL KEYWDS 3 GENOMICS, MCSG, ATP-BINDING, CELL INNER MEMBRANE, CELL MEMBRANE, KEYWDS 4 KINASE, MEMBRANE, NUCLEOTIDE-BINDING, PHOSPHOPROTEIN, TRANSCRIPTION, KEYWDS 5 TRANSCRIPTION REGULATION, TRANSFERASE, TRANSMEMBRANE, TWO-COMPONENT KEYWDS 6 REGULATORY SYSTEM EXPDTA X-RAY DIFFRACTION AUTHOR M.E.CUFF,E.RAKOWSKI,Y.KIM,L.FREEMAN,A.JOACHIMIAK,MIDWEST CENTER FOR AUTHOR 2 STRUCTURAL GENOMICS (MCSG) REVDAT 3 01-NOV-17 3IQT 1 REMARK REVDAT 2 13-JUL-11 3IQT 1 VERSN REVDAT 1 22-SEP-09 3IQT 0 JRNL AUTH M.E.CUFF,E.RAKOWSKI,Y.KIM,L.FREEMAN,A.JOACHIMIAK JRNL TITL STRUCTURE OF THE HPT DOMAIN OF SENSOR PROTEIN BARA FROM JRNL TITL 2 ESCHERICHIA COLI CFT073. JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 1.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.5.0072 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD WITH PHASES REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 35.30 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.2 REMARK 3 NUMBER OF REFLECTIONS : 19928 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) : 0.143 REMARK 3 R VALUE (WORKING SET) : 0.141 REMARK 3 FREE R VALUE : 0.181 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1012 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) : 1.40 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.44 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1424 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.22 REMARK 3 BIN R VALUE (WORKING SET) : 0.1620 REMARK 3 BIN FREE R VALUE SET COUNT : 63 REMARK 3 BIN FREE R VALUE : 0.1950 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 960 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 15 REMARK 3 SOLVENT ATOMS : 141 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 15.30 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 19.95 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.59000 REMARK 3 B22 (A**2) : 0.94000 REMARK 3 B33 (A**2) : -0.37000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -0.04000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.075 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.064 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.037 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.029 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.975 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.955 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1031 ; 0.016 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): 712 ; 0.002 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1395 ; 1.493 ; 2.024 REMARK 3 BOND ANGLES OTHERS (DEGREES): 1758 ; 0.931 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 130 ; 5.090 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 50 ;30.244 ;26.200 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 195 ;11.359 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 7 ;24.226 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 160 ; 0.077 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1136 ; 0.006 ; 0.021 REMARK 3 GENERAL PLANES OTHERS (A): 170 ; 0.001 ; 0.020 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): 639 ; 1.256 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 255 ; 0.602 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1031 ; 2.016 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 392 ; 3.088 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 363 ; 4.887 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): 1743 ; 1.371 ; 3.000 REMARK 3 SPHERICITY; FREE ATOMS (A**2): 142 ; 5.819 ; 3.000 REMARK 3 SPHERICITY; BONDED ATOMS (A**2): 1731 ; 3.280 ; 3.000 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 : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS U VALUES : REFINED INDIVIDUALLY REMARK 4 REMARK 4 3IQT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 21-AUG-09. REMARK 100 THE DEPOSITION ID IS D_1000054749. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-AUG-09 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 19-ID REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97942 REMARK 200 MONOCHROMATOR : SAGITALLY FOCUSED SI(111) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO, HKL-3000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK, HKL-3000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 19949 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.400 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.3 REMARK 200 DATA REDUNDANCY : 5.000 REMARK 200 R MERGE (I) : 0.09400 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 10.5000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.42 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 4.90 REMARK 200 R MERGE FOR SHELL (I) : 0.41400 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: SAD REMARK 200 SOFTWARE USED: MLPHARE, DM 6.0, HKL-3000, SHELXD, SOLVE, RESOLVE, REMARK 200 CCP4 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 33.82 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.86 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.05M CALCIUM CHLORIDE DIHYDRATE, ).1M REMARK 280 BIS TRIS PH6.5, 30% PEG MONOMETHYL ETHER 550, VAPOR DIFFUSION, REMARK 280 SITTING DROP, TEMPERATURE 277K 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 30.17950 REMARK 290 SMTRY3 2 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: AUTHORS STATE THAT THE BIOLOGICAL UNIT IS UNKNOWN BUT REMARK 300 LIKELY MONOMER 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 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 O HOH A 99 O HOH A 117 1656 2.16 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 SER A 870 -147.48 -127.84 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 CA A 1 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLN A 818 OE1 REMARK 620 2 BTB A 919 O1 71.2 REMARK 620 3 BTB A 919 O1 71.5 0.5 REMARK 620 4 BTB A 919 O4 111.9 69.6 69.0 REMARK 620 5 BTB A 919 O4 110.3 70.6 70.1 2.7 REMARK 620 6 BTB A 919 N 133.7 64.8 64.7 65.6 68.3 REMARK 620 7 BTB A 919 N 134.4 64.9 64.7 63.7 66.4 2.0 REMARK 620 8 BTB A 919 O6 92.6 80.7 81.2 131.4 134.0 67.1 69.1 REMARK 620 9 BTB A 919 O6 93.5 80.9 81.3 130.8 133.5 66.4 68.4 0.9 REMARK 620 N 1 2 3 4 5 6 7 8 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 1 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BTB A 919 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: APC36431.1 RELATED DB: TARGETDB DBREF 3IQT A 799 918 UNP P0AEC6 BARA_ECOL6 799 918 SEQADV 3IQT SER A 796 UNP P0AEC6 EXPRESSION TAG SEQADV 3IQT ASN A 797 UNP P0AEC6 EXPRESSION TAG SEQADV 3IQT ALA A 798 UNP P0AEC6 EXPRESSION TAG SEQRES 1 A 123 SER ASN ALA VAL ASN GLU ILE VAL VAL ASN PRO ASN ALA SEQRES 2 A 123 THR LEU ASP TRP GLN LEU ALA LEU ARG GLN ALA ALA GLY SEQRES 3 A 123 LYS THR ASP LEU ALA ARG ASP MSE LEU GLN MSE LEU LEU SEQRES 4 A 123 ASP PHE LEU PRO GLU VAL ARG ASN LYS VAL GLU GLU GLN SEQRES 5 A 123 LEU VAL GLY GLU ASN PRO GLU GLY LEU VAL ASP LEU ILE SEQRES 6 A 123 HIS LYS LEU HIS GLY SER CYS GLY TYR SER GLY VAL PRO SEQRES 7 A 123 ARG MSE LYS ASN LEU CYS GLN LEU ILE GLU GLN GLN LEU SEQRES 8 A 123 ARG SER GLY THR LYS GLU GLU ASP LEU GLU PRO GLU LEU SEQRES 9 A 123 LEU GLU LEU LEU ASP GLU MSE ASP ASN VAL ALA ARG GLU SEQRES 10 A 123 ALA SER LYS ILE LEU GLY MODRES 3IQT MSE A 829 MET SELENOMETHIONINE MODRES 3IQT MSE A 832 MET SELENOMETHIONINE MODRES 3IQT MSE A 875 MET SELENOMETHIONINE MODRES 3IQT MSE A 906 MET SELENOMETHIONINE HET MSE A 829 16 HET MSE A 832 8 HET MSE A 875 8 HET MSE A 906 8 HET CA A 1 1 HET BTB A 919 28 HETNAM MSE SELENOMETHIONINE HETNAM CA CALCIUM ION HETNAM BTB 2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL- HETNAM 2 BTB PROPANE-1,3-DIOL HETSYN BTB BIS-TRIS BUFFER FORMUL 1 MSE 4(C5 H11 N O2 SE) FORMUL 2 CA CA 2+ FORMUL 3 BTB C8 H19 N O5 FORMUL 4 HOH *141(H2 O) HELIX 1 1 ASN A 805 THR A 809 5 5 HELIX 2 2 ASP A 811 ALA A 819 1 9 HELIX 3 3 LYS A 822 VAL A 849 1 28 HELIX 4 4 GLY A 855 GLY A 868 1 14 HELIX 5 5 VAL A 872 SER A 888 1 17 HELIX 6 6 LYS A 891 ASP A 894 5 4 HELIX 7 7 LEU A 895 LEU A 917 1 23 LINK C ASP A 828 N AMSE A 829 1555 1555 1.33 LINK C ASP A 828 N BMSE A 829 1555 1555 1.33 LINK C AMSE A 829 N LEU A 830 1555 1555 1.32 LINK C BMSE A 829 N LEU A 830 1555 1555 1.33 LINK C GLN A 831 N MSE A 832 1555 1555 1.32 LINK C MSE A 832 N LEU A 833 1555 1555 1.33 LINK C ARG A 874 N MSE A 875 1555 1555 1.33 LINK C MSE A 875 N LYS A 876 1555 1555 1.33 LINK C GLU A 905 N MSE A 906 1555 1555 1.33 LINK C MSE A 906 N ASP A 907 1555 1555 1.33 LINK OE1 GLN A 818 CA CA A 1 1555 1555 2.23 LINK CA CA A 1 O1 ABTB A 919 1555 1555 2.46 LINK CA CA A 1 O1 BBTB A 919 1555 1555 2.43 LINK CA CA A 1 O4 ABTB A 919 1555 1555 2.47 LINK CA CA A 1 O4 BBTB A 919 1555 1555 2.34 LINK CA CA A 1 N ABTB A 919 1555 1555 2.63 LINK CA CA A 1 N BBTB A 919 1555 1555 2.68 LINK CA CA A 1 O6 ABTB A 919 1555 1555 2.42 LINK CA CA A 1 O6 BBTB A 919 1555 1555 2.45 LINK CA CA A 1 O8 ABTB A 919 1555 1555 2.41 LINK CA CA A 1 O8 BBTB A 919 1555 1555 2.42 LINK CA CA A 1 O HOH A 7 1555 1555 2.47 SITE 1 AC1 4 HOH A 7 HOH A 9 GLN A 818 BTB A 919 SITE 1 AC2 12 CA A 1 HOH A 7 HOH A 9 HOH A 47 SITE 2 AC2 12 GLN A 818 LEU A 848 VAL A 849 GLY A 850 SITE 3 AC2 12 GLY A 868 TYR A 869 GLU A 893 GLU A 896 CRYST1 24.316 60.359 37.156 90.00 108.21 90.00 P 1 21 1 2 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 0.041125 0.000000 0.013527 0.00000 SCALE2 0.000000 0.016568 0.000000 0.00000 SCALE3 0.000000 0.000000 0.028332 0.00000