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Yorodumi- PDB-2cla: CRYSTAL STRUCTURE OF THE ASP-199-ASN MUTANT OF CHLORAMPHENICOL AC... -
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-Basic information
Entry | Database: PDB / ID: 2cla | ||||||
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Title | CRYSTAL STRUCTURE OF THE ASP-199-ASN MUTANT OF CHLORAMPHENICOL ACETYLTRANSFERASE TO 2.35 ANGSTROMS RESOLUTION. STRUCTURAL CONSEQUENCES OF DISRUPTION OF A BURIED SALT-BRIDGE | ||||||
Components | CHLORAMPHENICOL ACETYLTRANSFERASE | ||||||
Keywords | TRANSFERASE (ACYLTRANSFERASE) | ||||||
Function / homology | Function and homology information chloramphenicol O-acetyltransferase / chloramphenicol O-acetyltransferase activity / response to antibiotic Similarity search - Function | ||||||
Biological species | Escherichia coli (E. coli) | ||||||
Method | X-RAY DIFFRACTION / Resolution: 2.35 Å | ||||||
Authors | Gibbs, M.R. / Moody, P.C.E. / Leslie, A.G.W. | ||||||
Citation | Journal: Biochemistry / Year: 1990 Title: Crystal structure of the aspartic acid-199----asparagine mutant of chloramphenicol acetyltransferase to 2.35-A resolution: structural consequences of disruption of a buried salt bridge. Authors: Gibbs, M.R. / Moody, P.C. / Leslie, A.G. #1: Journal: Biochemistry / Year: 1990 Title: Evidence for Transition-State Stabilization by Serine-148 in the Catalytic Mechanism of Chloramphenicol Acetyltransferase Authors: Lewendon, A. / Murray, I.A. / Shaw, W.V. / Gibbs, M.R. / Leslie, A.G.W. #2: Journal: J.Mol.Biol. / Year: 1990 Title: Refined Crystal Structure of Type III Chloramphenicol Acetyltransferase at 1.75 Angstroms Resolution Authors: Leslie, A.G.W. #3: Journal: Biochemistry / Year: 1988 Title: Substitutions in the Active Site of Chloramphenicol Acetyltransferase. Role of a Conserved Aspartate Authors: Lewendon, A. / Murray, I.A. / Kleanthous, C. / Cullis, P.M. / Shaw, W.V. #4: Journal: Proc.Natl.Acad.Sci.USA / Year: 1988 Title: Structure of Chloramphenicol Acetyltransferase at 1.75-Angstroms Resolution Authors: Leslie, A.G.W. / Moody, P.C.E. / Shaw, W.V. #5: Journal: J.Mol.Biol. / Year: 1986 Title: Crystallization of a Type III Chloramphenicol Acetyl Transferase Authors: Leslie, A.G.W. / Liddell, J.M. / Shaw, W.V. | ||||||
History |
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Remark 700 | SHEET SHEET 1 ACTUALLY HAS SEVEN STRANDS. DATA BANK CONVENTIONS DO NOT ALLOW LISTING RESIDUES WHICH ...SHEET SHEET 1 ACTUALLY HAS SEVEN STRANDS. DATA BANK CONVENTIONS DO NOT ALLOW LISTING RESIDUES WHICH ARE SYMMETRY RELATED. THE FINAL STRAND, SER 157 - VAL 162, IS IN AN ADJACENT (THREE-FOLD RELATED) SUBUNIT OF THE TRIMER. N OF ASN 159 IS HYDROGEN BONDED TO O OF SEH 34. THERE IS A WIDE BETA-BULGE INVOLVING RESIDUES LYS 177, TYR 178, AND LEU 187. RESIDUES 157 - 162 FORM AN EXTENSION TO THE SIX STRANDED BETA-SHEET OF AN ADJACENT SHEET WHICH SPANS THE SUBUNIT INTERFACE. |
-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 2cla.cif.gz | 58.5 KB | Display | PDBx/mmCIF format |
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PDB format | pdb2cla.ent.gz | 41.6 KB | Display | PDB format |
PDBx/mmJSON format | 2cla.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/cl/2cla ftp://data.pdbj.org/pub/pdb/validation_reports/cl/2cla | HTTPS FTP |
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-Related structure data
Similar structure data |
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-Links
-Assembly
Deposited unit |
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2 |
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Unit cell |
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Atom site foot note | 1: THERE IS A WIDE BETA-BULGE INVOLVING RESIDUES LYS 177, TYR 178, AND LEU 187. 2: RESIDUES 157 - 162 FORM AN EXTENSION TO THE SIX STRANDED BETA-SHEET OF AN ADJACENT SHEET WHICH SPANS THE SUBUNIT INTERFACE. | ||||||||||||||||||
Components on special symmetry positions |
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-Components
#1: Protein | Mass: 25020.508 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) References: UniProt: P00484, chloramphenicol O-acetyltransferase | ||||||
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#2: Chemical | #3: Water | ChemComp-HOH / | Compound details | THE MUTATED ASPARTATE RESIDUE IS BELIEVED TO HAVE A STRUCTURAL ROLE AND IS SITUATED NEAR THE ACTIVE ...THE MUTATED ASPARTATE RESIDUE IS BELIEVED TO HAVE A STRUCTURAL | Sequence details | THE NUMBERING SCHEME ADOPTED IS BASED ON THE ALIGNMENT OF A NUMBER OF CAT SEQUENCES. FOR THE TYPE ...THE NUMBERING SCHEME ADOPTED IS BASED ON THE ALIGNMENT OF A NUMBER OF CAT SEQUENCES. FOR THE TYPE III ENZYME WHOSE COORDINATE | |
-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION |
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-Sample preparation
Crystal | Density Matthews: 2.77 Å3/Da / Density % sol: 55.65 % | ||||||||||||||||||||||||||||||||||||||||
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Crystal grow | *PLUS Temperature: 4 ℃ / pH: 6.3 / Method: microdialysis | ||||||||||||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Reflection | *PLUS Highest resolution: 2.35 Å / % possible obs: 75 % / Rmerge(I) obs: 0.078 |
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-Processing
Software | Name: PROLSQ / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Refinement | Rfactor obs: 0.152 / Highest resolution: 2.35 Å Details: THE STRUCTURE WAS SOLVED BY MOLECULAR REPLACEMENT USING THE REFINED 1.75 ANGSTROMS RESOLUTION STRUCTURE OF THE WILD TYPE ENZYME AS A MODEL. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Highest resolution: 2.35 Å
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Refine LS restraints |
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Refinement | *PLUS Highest resolution: 2.35 Å / Rfactor obs: 0.152 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | *PLUS |