HEADER DNA BINDING PROTEIN 19-JUL-96 1JHG TITLE TRP REPRESSOR MUTANT V58I COMPND MOL_ID: 1; COMPND 2 MOLECULE: TRP OPERON REPRESSOR; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 CELL_LINE: BL21; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3); SOURCE 8 EXPRESSION_SYSTEM_CELL: CYTOPLASM; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET13A; SOURCE 10 EXPRESSION_SYSTEM_GENE: TRPRI58; SOURCE 11 OTHER_DETAILS: I58 TRP REPRESSOR WAS GROWN IN ESCHERICHIA COLI SOURCE 12 STRAIN BL21 (DE3) USING T7 EXPRESSION SYSTEM VECTORS KEYWDS REGULATORY PROTEIN-PEPTIDE COMPLEX, DNA BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR C.L.LAWSON REVDAT 8 07-FEB-24 1JHG 1 REMARK REVDAT 7 03-NOV-21 1JHG 1 REMARK SEQADV REVDAT 6 21-MAY-14 1JHG 1 JRNL REVDAT 5 13-JUL-11 1JHG 1 VERSN REVDAT 4 09-JUN-09 1JHG 1 REVDAT REVDAT 3 24-FEB-09 1JHG 1 VERSN REVDAT 2 09-DEC-08 1JHG 1 JRNL REVDAT 1 12-MAR-97 1JHG 0 JRNL AUTH C.L.LAWSON JRNL TITL AN ATOMIC VIEW OF THE L-TRYPTOPHAN BINDING SITE OF TRP JRNL TITL 2 REPRESSOR. JRNL REF NAT.STRUCT.BIOL. V. 3 986 1996 JRNL REFN ISSN 1072-8368 JRNL PMID 8946848 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH C.L.LAWSON REMARK 1 TITL STRUCTURAL CONSEQUENCES OF TWP METHYL ADDITIONS IN THE REMARK 1 TITL 2 ESCHERICHIA COLI TRP REPRESSOR L-TRYPTOPHAN BINDING POCKET REMARK 1 EDIT R.H.SARMA, M.H.SARMA REMARK 1 REF BIOLOGICAL STRUCTURE AND V. 1 83 1996 REMARK 1 REF 2 DYNAMICS: PROCEEDINGS OF THE REMARK 1 REF 3 NINTH CONVERSATION IN THE REMARK 1 REF 4 DISCIPLINE BIOMOLECULAR REMARK 1 REF 5 STEREODYNAMICS, HELD AT THE REMARK 1 REF 6 STATE UNIVERSITY OF NEW YORK REMARK 1 REF 7 AT ALBANY, JUNE 20-24, 1995 REMARK 1 PUBL SCHENECTADY, NY: ADENINE PRESS REMARK 1 REFN ISSN 0-940030-46-2 REMARK 2 REMARK 2 RESOLUTION. 1.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-93 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 97.4 REMARK 3 CROSS-VALIDATION METHOD : FREE R REMARK 3 FREE R VALUE TEST SET SELECTION : EVERY 10TH REFLECTION REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : 0.127 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.122 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.172 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 2334 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 23349 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.127 REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.120 REMARK 3 FREE R VALUE (F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 21934 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 804 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 20 REMARK 3 SOLVENT ATOMS : 119 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 3504.0 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 4248.0 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 15 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 8337 REMARK 3 NUMBER OF RESTRAINTS : 2568 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.017 REMARK 3 ANGLE DISTANCES (A) : NULL REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : NULL REMARK 3 ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : NULL REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : NULL REMARK 3 SIMILAR ADP COMPONENTS (A**2) : NULL REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: SWAT 7.731 2.0 (BABINET'S PRINCIPLE) REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: RIDING HYDROGEN ATOM OPTION OF SHELXL REMARK 3 USED, ANISOTROPIC TEMPERATURE FACTORS REFINED BUT NOT INCLUDED REMARK 3 IN THE DEPOSITION. SOME SIDE-CHAIN, SOLVENT, AND ALL PHOSPHATE REMARK 3 ATOMS HAVE PARTIAL OCCUPANCIES. APPARENT "SHORT" INTERATOMIC REMARK 3 DISTANCES INDICATE POSITIONS IN THE CRYSTAL WHERE THERE ARE AT REMARK 3 LEAST TWO ALTERNATE MODELS. REMARK 4 REMARK 4 1JHG COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000174329. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : AUG-94 REMARK 200 TEMPERATURE (KELVIN) : 287 REMARK 200 PH : 5.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSLS REMARK 200 BEAMLINE : X12C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.99 REMARK 200 MONOCHROMATOR : SI(111) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE AREA DETECTOR 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 : 86193 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.300 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.250 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.4 REMARK 200 DATA REDUNDANCY : 3.600 REMARK 200 R MERGE (I) : 0.03200 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 28.4000 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) : 1.35 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.0 REMARK 200 DATA REDUNDANCY IN SHELL : 3.30 REMARK 200 R MERGE FOR SHELL (I) : 0.16700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 20.00 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: ISOMORPHOUS TO PDB ENTRY REMARK 200 2WRP REMARK 200 SOFTWARE USED: SHELXL-93 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 37.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.90 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: HANGING DROP VAPOR DIFFUSION 2.0 M REMARK 280 SODIUM PHOSPHATE, PH 5.0 600 MM AMMONIUM CHLORIDE 5 MM L- REMARK 280 TRYPTOPHAN, VAPOR DIFFUSION - HANGING DROP, VAPOR DIFFUSION, REMARK 280 HANGING DROP REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 2 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,-Y,-Z+1/2 REMARK 290 4555 -X+1/2,-Y,Z+1/2 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 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 26.76800 REMARK 290 SMTRY2 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 26.69250 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 26.76800 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 26.69250 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,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 4780 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 11500 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -45.0 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 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 308 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 312 LIES ON A SPECIAL POSITION. REMARK 400 REMARK 400 COMPOUND REMARK 400 TWO TORSIONAL ANGLES IN THE L-TRYPTOPHAN BINDING POCKET REMARK 400 HAVE DISTINCTLY NON-IDEAL GEOMETRY: REMARK 400 CHI1 OF THE L-TRYPTOPHAN LIGAND (-155 DEGREES) REMARK 400 OMEGA OF THE LEU 41 - MET 42 PEPTIDE BOND (168 DEGREES) REMARK 400 REFERENCE 1 DISCUSSES THE POSSIBLE BIOLOGICAL REMARK 400 SIGNIFICANCE OF THESE DISTORTIONS. 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 SER A 8 OG REMARK 470 MET A 11 CG SD CE REMARK 470 GLU A 74 CG CD OE1 OE2 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 GLU A 60 NH1 ARG A 63 0.69 REMARK 500 OE2 GLU A 60 HH12 ARG A 63 1.08 REMARK 500 CD GLU A 60 HH12 ARG A 63 1.15 REMARK 500 OE1 GLU A 60 HH12 ARG A 63 1.34 REMARK 500 OE1 GLU A 60 HH11 ARG A 63 1.34 REMARK 500 CD GLU A 60 NH1 ARG A 63 1.38 REMARK 500 OE1 GLU A 60 CZ ARG A 63 1.67 REMARK 500 OE2 GLU A 60 NH1 ARG A 63 1.88 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 ARG A 21 NE ARG A 21 CZ -0.093 REMARK 500 REMARK 500 REMARK: NULL 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 ARG A 21 CD - NE - CZ ANGL. DEV. = 18.4 DEGREES REMARK 500 ARG A 21 NH1 - CZ - NH2 ANGL. DEV. = -7.6 DEGREES REMARK 500 ARG A 21 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 ARG A 21 NE - CZ - NH2 ANGL. DEV. = 4.0 DEGREES REMARK 500 ARG A 56 CD - NE - CZ ANGL. DEV. = 8.6 DEGREES REMARK 500 ARG A 56 NE - CZ - NH1 ANGL. DEV. = 5.0 DEGREES REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 ARG A 56 0.20 SIDE CHAIN REMARK 500 ARG A 63 0.26 SIDE CHAIN REMARK 500 ARG A 84 0.21 SIDE CHAIN REMARK 500 ARG A 97 0.29 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: WBS REMARK 800 EVIDENCE_CODE: UNKNOWN REMARK 800 SITE_DESCRIPTION: L-TRYPTOPHAN BINDING SITE PLEASE NOTE THAT LEU REMARK 800 41 AND THR 44 FORM PART OF THE BINDING SITE ON THE SUBUNIT OF REMARK 800 REPRESSOR THAT MAY BE GENERATED BY THE INDICATED SYMMETRY REMARK 800 OPERATOR. REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 120 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TRP A 111 DBREF 1JHG A 8 108 UNP P0A881 TRPR_ECOLI 7 107 SEQADV 1JHG ILE A 58 UNP P0A881 VAL 57 ENGINEERED MUTATION SEQRES 1 A 101 SER ALA ALA MET ALA GLU GLN ARG HIS GLN GLU TRP LEU SEQRES 2 A 101 ARG PHE VAL ASP LEU LEU LYS ASN ALA TYR GLN ASN ASP SEQRES 3 A 101 LEU HIS LEU PRO LEU LEU ASN LEU MET LEU THR PRO ASP SEQRES 4 A 101 GLU ARG GLU ALA LEU GLY THR ARG VAL ARG ILE ILE GLU SEQRES 5 A 101 GLU LEU LEU ARG GLY GLU MET SER GLN ARG GLU LEU LYS SEQRES 6 A 101 ASN GLU LEU GLY ALA GLY ILE ALA THR ILE THR ARG GLY SEQRES 7 A 101 SER ASN SER LEU LYS ALA ALA PRO VAL GLU LEU ARG GLN SEQRES 8 A 101 TRP LEU GLU GLU VAL LEU LEU LYS SER ASP HET PO4 A 120 5 HET TRP A 111 27 HETNAM PO4 PHOSPHATE ION HETNAM TRP TRYPTOPHAN FORMUL 2 PO4 O4 P 3- FORMUL 3 TRP C11 H12 N2 O2 FORMUL 4 HOH *119(H2 O) HELIX 1 1 ALA A 9 GLN A 31 1 23 HELIX 2 2 HIS A 35 MET A 42 1 8 HELIX 3 3 PRO A 45 ARG A 63 1 19 HELIX 4 4 GLN A 68 LEU A 75 1 8 HELIX 5 5 ILE A 79 ALA A 91 1 13 HELIX 6 6 VAL A 94 LEU A 104 1 11 SITE 1 WBS 9 LEU A 41 THR A 44 ARG A 54 ILE A 57 SITE 2 WBS 9 ILE A 58 THR A 81 ARG A 84 GLY A 85 SITE 3 WBS 9 SER A 88 SITE 1 AC1 8 HIS A 16 TRP A 19 ASN A 40 ARG A 63 SITE 2 AC1 8 LYS A 106 ASP A 108 HOH A 284 HOH A 285 SITE 1 AC2 12 ASN A 40 LEU A 41 LEU A 43 THR A 44 SITE 2 AC2 12 ARG A 54 THR A 81 ARG A 84 GLY A 85 SITE 3 AC2 12 SER A 88 HOH A 220 HOH A 257 HOH A 319 CRYST1 53.536 32.789 53.385 90.00 90.00 90.00 P 21 2 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 0.018679 0.000000 0.000000 0.00000 SCALE2 0.000000 0.030498 0.000000 0.00000 SCALE3 0.000000 0.000000 0.018732 0.00000