PDB Short entry for 1BXI HEADER IMMUNE SYSTEM 04-OCT-98 1BXI TITLE CRYSTAL STRUCTURE OF THE ESCHERICHIA COLI COLICIN E9 DNASE DOMAIN WITH TITLE 2 ITS COGNATE IMMUNITY PROTEIN IM9 COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (COLICIN E9 IMMUNITY PROTEIN); COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: PROTEIN (COLICIN E9); COMPND 7 CHAIN: B; COMPND 8 FRAGMENT: DNASE DOMAIN, RESIDUES 450-581; COMPND 9 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: E9IMM; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: JM83; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PRJ345; SOURCE 9 MOL_ID: 2; SOURCE 10 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 11 ORGANISM_TAXID: 562; SOURCE 12 GENE: COLE9; SOURCE 13 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 14 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 15 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 16 EXPRESSION_SYSTEM_VARIANT: B834 (DE3); SOURCE 17 EXPRESSION_SYSTEM_PLASMID: PRJ353; SOURCE 18 EXPRESSION_SYSTEM_GENE: COLE9 KEYWDS COLICINS, ENDONUCLEASE, PROTEIN-PROTEIN INTERACTION, IMMUNE SYSTEM EXPDTA X-RAY DIFFRACTION AUTHOR U.C.KUHLMANN,C.KLEANTHOUS,R.JAMES,G.R.MOORE,A.M.HEMMINGS REVDAT 5 27-DEC-23 1BXI 1 REMARK REVDAT 4 03-NOV-21 1BXI 1 REMARK SEQADV LINK REVDAT 3 14-MAR-18 1BXI 1 REMARK SEQADV REVDAT 2 24-FEB-09 1BXI 1 VERSN REVDAT 1 04-OCT-99 1BXI 0 JRNL AUTH U.C.KUHLMANN JRNL TITL CRYSTAL STRUCTURE OF THE E.COLI COLICIN E9 DNASE DOMAIN WITH JRNL TITL 2 ITS COGNATE IMMUNITY PROTEIN IM9 JRNL REF THESIS 1998 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH C.KLEANTHOUS,U.C.KUHLMANN,A.J.POMMER,N.FERGUSON S.E.RADFORD, REMARK 1 AUTH 2 G.R.MOORE,R.JAMES,A.M.HEMMINGS REMARK 1 TITL STRUCTURAL AND MECHANISTIC BASIS OF IMMUNITY TOWARD REMARK 1 TITL 2 ENDONUCLEASE COLICINS REMARK 1 REF NAT.STRUCT.BIOL. V. 6 243 1999 REMARK 1 REFN ISSN 1072-8368 REMARK 2 REMARK 2 RESOLUTION. 2.05 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.05 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 12529 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) : NULL REMARK 3 R VALUE (WORKING SET) : 0.218 REMARK 3 FREE R VALUE : 0.315 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 620 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1685 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 6 REMARK 3 SOLVENT ATOMS : 103 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 18.70 REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.280 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.250 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.160 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.020 ; 0.020 REMARK 3 ANGLE DISTANCE (A) : 0.046 ; 0.040 REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : 0.055 ; 0.050 REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : 0.019 ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : 0.185 ; 0.300 REMARK 3 MULTIPLE TORSION (A) : 0.273 ; 0.300 REMARK 3 H-BOND (X...Y) (A) : 0.219 ; 0.300 REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : 15.000; NULL REMARK 3 PLANAR (DEGREES) : 6.700 ; 7.000 REMARK 3 STAGGERED (DEGREES) : 24.200; 15.000 REMARK 3 TRANSVERSE (DEGREES) : NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 2.741 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 4.037 ; 3.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.855 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 4.270 ; 3.000 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1BXI COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 19-JUL-99. REMARK 100 THE DEPOSITION ID IS D_1000007022. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-NOV-96 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.3 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : EMBL/DESY, HAMBURG REMARK 200 BEAMLINE : X31 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.979,0.9795,0.9 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 13096 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.050 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 200 DATA REDUNDANCY : 8.000 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.06100 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 22.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.05 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.15 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 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 <I/SIGMA(I)> FOR SHELL : 6.700 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: MAD REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 39.40 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.03 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 24%(W/V)PEG 4K, 0.1MM SODIUM-ACETATE, REMARK 280 PH5.3 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 21.92500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 43.79500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 25.98000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 43.79500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 21.92500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 25.98000 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 1890 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 10960 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -23.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 GLU A 2 REMARK 465 GLY A 86 REMARK 465 ARG B 132 REMARK 465 GLY B 133 REMARK 465 LYS B 134 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES 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,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) 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 ATM2 ATM3 REMARK 500 LYS A 4 N - CA - CB ANGL. DEV. = -11.1 DEGREES REMARK 500 LYS A 4 N - CA - C ANGL. DEV. = 17.2 DEGREES REMARK 500 ASP A 51 CB - CG - OD2 ANGL. DEV. = 6.2 DEGREES REMARK 500 ARG A 75 CD - NE - CZ ANGL. DEV. = 14.3 DEGREES REMARK 500 LYS A 84 CA - CB - CG ANGL. DEV. = 14.9 DEGREES REMARK 500 ARG B 5 CB - CA - C ANGL. DEV. = -13.8 DEGREES REMARK 500 ARG B 5 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES REMARK 500 ASP B 20 CB - CG - OD2 ANGL. DEV. = 8.4 DEGREES REMARK 500 ASP B 25 CB - CG - OD2 ANGL. DEV. = -6.6 DEGREES REMARK 500 ASP B 36 CB - CG - OD1 ANGL. DEV. = 6.3 DEGREES REMARK 500 ARG B 37 NE - CZ - NH2 ANGL. DEV. = 3.6 DEGREES REMARK 500 ASP B 40 CB - CG - OD1 ANGL. DEV. = 6.2 DEGREES REMARK 500 ARG B 43 CD - NE - CZ ANGL. DEV. = 16.4 DEGREES REMARK 500 ARG B 43 NE - CZ - NH1 ANGL. DEV. = 11.0 DEGREES REMARK 500 ARG B 43 NE - CZ - NH2 ANGL. DEV. = -9.5 DEGREES REMARK 500 ASP B 51 CB - CG - OD1 ANGL. DEV. = 10.3 DEGREES REMARK 500 ASP B 52 CA - CB - CG ANGL. DEV. = -16.5 DEGREES REMARK 500 ASP B 52 OD1 - CG - OD2 ANGL. DEV. = 21.7 DEGREES REMARK 500 ASP B 52 CB - CG - OD1 ANGL. DEV. = -17.5 DEGREES REMARK 500 ARG B 54 NE - CZ - NH2 ANGL. DEV. = 5.9 DEGREES REMARK 500 GLU B 59 OE1 - CD - OE2 ANGL. DEV. = -10.1 DEGREES REMARK 500 SER B 62 CB - CA - C ANGL. DEV. = -12.7 DEGREES REMARK 500 ASN B 70 O - C - N ANGL. DEV. = -15.3 DEGREES REMARK 500 LEU B 71 C - N - CA ANGL. DEV. = 48.2 DEGREES REMARK 500 ARG B 96 NE - CZ - NH1 ANGL. DEV. = 4.3 DEGREES REMARK 500 ASP B 104 CB - CG - OD2 ANGL. DEV. = -6.4 DEGREES REMARK 500 TYR B 114 CB - CG - CD2 ANGL. DEV. = -4.5 DEGREES REMARK 500 TYR B 114 CB - CG - CD1 ANGL. DEV. = 5.7 DEGREES REMARK 500 ASP B 115 CB - CG - OD2 ANGL. DEV. = -6.5 DEGREES REMARK 500 ARG B 126 CD - NE - CZ ANGL. DEV. = 8.5 DEGREES REMARK 500 ARG B 126 NE - CZ - NH2 ANGL. DEV. = 3.9 DEGREES REMARK 500 ARG B 126 O - C - N ANGL. DEV. = -9.9 DEGREES REMARK 500 ILE B 130 CB - CA - C ANGL. DEV. = -12.6 DEGREES REMARK 500 HIS B 131 CA - CB - CG ANGL. DEV. = 12.5 DEGREES REMARK 500 HIS B 131 N - CA - C ANGL. DEV. = 18.1 DEGREES 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 LYS A 4 53.50 -140.77 REMARK 500 GLU B 2 -60.99 102.43 REMARK 500 ASP B 29 -126.09 55.84 REMARK 500 ASP B 44 -6.69 78.21 REMARK 500 ASN B 70 78.44 55.04 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 ASN B 70 LEU B 71 112.53 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY REMARK 500 REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 500 I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI ANGLE REMARK 500 ASN B 118 10.15 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 NI B 301 NI REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 102 ND1 REMARK 620 2 HIS B 127 NE2 94.1 REMARK 620 3 PO4 B 403 O3 108.8 106.8 REMARK 620 N 1 2 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: NIB REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: NICKEL BINDING SITE, PROBABLY TETRAHEDRAL REMARK 800 COORDINATION, BY THREE HISTIDINE AND THE PHOSPHATE GROUP REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NI B 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 B 403 DBREF 1BXI A 1 86 UNP P13479 IMM9_ECOLI 1 86 DBREF 1BXI B 1 134 UNP P09883 CEA9_ECOLI 449 582 SEQADV 1BXI ALA A 5 UNP P13479 HIS 5 ENGINEERED MUTATION SEQADV 1BXI GLN A 72 UNP P13479 LYS 72 CONFLICT SEQADV 1BXI MSE B 1 UNP P09883 LYS 449 ENGINEERED MUTATION SEQADV 1BXI MSE B 116 UNP P09883 MET 564 MODIFIED RESIDUE SEQRES 1 A 86 MET GLU LEU LYS ALA SER ILE SER ASP TYR THR GLU ALA SEQRES 2 A 86 GLU PHE LEU GLN LEU VAL THR THR ILE CYS ASN ALA ASP SEQRES 3 A 86 THR SER SER GLU GLU GLU LEU VAL LYS LEU VAL THR HIS SEQRES 4 A 86 PHE GLU GLU MET THR GLU HIS PRO SER GLY SER ASP LEU SEQRES 5 A 86 ILE TYR TYR PRO LYS GLU GLY ASP ASP ASP SER PRO SER SEQRES 6 A 86 GLY ILE VAL ASN THR VAL GLN GLN TRP ARG ALA ALA ASN SEQRES 7 A 86 GLY LYS SER GLY PHE LYS GLN GLY SEQRES 1 B 134 MSE GLU SER LYS ARG ASN LYS PRO GLY LYS ALA THR GLY SEQRES 2 B 134 LYS GLY LYS PRO VAL GLY ASP LYS TRP LEU ASP ASP ALA SEQRES 3 B 134 GLY LYS ASP SER GLY ALA PRO ILE PRO ASP ARG ILE ALA SEQRES 4 B 134 ASP LYS LEU ARG ASP LYS GLU PHE LYS SER PHE ASP ASP SEQRES 5 B 134 PHE ARG LYS ALA VAL TRP GLU GLU VAL SER LYS ASP PRO SEQRES 6 B 134 GLU LEU SER LYS ASN LEU ASN PRO SER ASN LYS SER SER SEQRES 7 B 134 VAL SER LYS GLY TYR SER PRO PHE THR PRO LYS ASN GLN SEQRES 8 B 134 GLN VAL GLY GLY ARG LYS VAL TYR GLU LEU HIS HIS ASP SEQRES 9 B 134 LYS PRO ILE SER GLN GLY GLY GLU VAL TYR ASP MSE ASP SEQRES 10 B 134 ASN ILE ARG VAL THR THR PRO LYS ARG HIS ILE ASP ILE SEQRES 11 B 134 HIS ARG GLY LYS MODRES 1BXI MSE B 1 MET SELENOMETHIONINE MODRES 1BXI MSE B 116 MET SELENOMETHIONINE HET MSE B 1 8 HET MSE B 116 8 HET NI B 301 1 HET PO4 B 403 5 HETNAM MSE SELENOMETHIONINE HETNAM NI NICKEL (II) ION HETNAM PO4 PHOSPHATE ION FORMUL 2 MSE 2(C5 H11 N O2 SE) FORMUL 3 NI NI 2+ FORMUL 4 PO4 O4 P 3- FORMUL 5 HOH *103(H2 O) HELIX 1 1 ILE A 7 ASP A 9 5 3 HELIX 2 2 GLU A 12 ASN A 24 1 13 HELIX 3 3 GLU A 30 THR A 44 1 15 HELIX 4 4 GLY A 49 TYR A 54 5 6 HELIX 5 5 PRO A 64 ASN A 78 1 15 HELIX 6 6 LYS B 4 ASN B 6 5 3 HELIX 7 7 TRP B 22 GLY B 27 1 6 HELIX 8 8 ASP B 36 LEU B 42 1 7 HELIX 9 9 PHE B 50 LYS B 63 1 14 HELIX 10 10 PRO B 65 SER B 68 1 4 HELIX 11 11 PRO B 73 LYS B 81 1 9 HELIX 12 12 LYS B 89 GLN B 91 5 3 HELIX 13 13 PRO B 124 ASP B 129 1 6 SHEET 1 A 2 GLU B 100 HIS B 103 0 SHEET 2 A 2 ILE B 119 THR B 122 -1 N THR B 122 O GLU B 100 LINK C MSE B 1 N GLU B 2 1555 1555 1.32 LINK C ASP B 115 N MSE B 116 1555 1555 1.33 LINK C MSE B 116 N ASP B 117 1555 1555 1.33 LINK ND1 HIS B 102 NI NI B 301 1555 1555 2.15 LINK NE2 HIS B 127 NI NI B 301 1555 1555 2.12 LINK NI NI B 301 O3 PO4 B 403 1555 1555 2.19 SITE 1 NIB 2 HIS B 102 HIS B 127 SITE 1 AC1 4 HIS B 102 HIS B 127 HIS B 131 PO4 B 403 SITE 1 AC2 8 SER A 28 ARG B 5 LEU B 101 HIS B 102 SITE 2 AC2 8 HIS B 103 HIS B 127 NI B 301 HOH B 414 CRYST1 43.850 51.960 87.590 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 0.022805 0.000000 0.000000 0.00000 SCALE2 0.000000 0.019246 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011417 0.00000