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(-) Description

Title :  QUADRUPLE MUTANT Q92C, N146F, Y168F, I172V TYPE III CAT COMPLEXED WITH FUSIDIC ACID. CRYSTALS GROWN AT PH 6.3. X-RAY DATA COLLECTED AT ROOM TEMPERATURE
 
Authors :  A. G. W. Leslie
Date :  03 Aug 95  (Deposition) - 15 Oct 95  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (3x)
Biol. Unit 2:  A  (6x)
Keywords :  Chloramphenicol, Fusidate, Steroid, Transferase (Acyltransferase) (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  I. A. Murray, P. A. Cann, P. J. Day, J. P. Derrick, M. J. Sutcliffe, W. V. Shaw, A. G. Leslie
Steroid Recognition By Chloramphenicol Acetyltransferase: Engineering And Structural Analysis Of A High Affinity Fusidic Acid Binding Site.
J. Mol. Biol. V. 254 993 1995
PubMed-ID: 7500366  |  Reference-DOI: 10.1006/JMBI.1995.0671
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - TYPE III CHLORAMPHENICOL ACETYLTRANSFERASE
    Chains: A
    EC Number: 2.3.1.28
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PUC18
    Expression System Strain: JM101
    Expression System Taxid: 562
    Mutation: YES
    Organism Scientific: SHIGELLA FLEXNERI
    Organism Taxid: 623
    Other Details: TRANSMISSIBLE PLASMID R387 ISOLATED FROM SHIGELLA FLEXNERI
    Synonym: CAT III

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit : A
Biological Unit 1 (3x): A
Biological Unit 2 (6x): A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 3)

Asymmetric Unit (2, 3)
No.NameCountTypeFull Name
1CO2Ligand/IonCOBALT (II) ION
2FUA1Ligand/IonFUSIDIC ACID
Biological Unit 1 (1, 3)
No.NameCountTypeFull Name
1CO-1Ligand/IonCOBALT (II) ION
2FUA3Ligand/IonFUSIDIC ACID
Biological Unit 2 (1, 6)
No.NameCountTypeFull Name
1CO-1Ligand/IonCOBALT (II) ION
2FUA6Ligand/IonFUSIDIC ACID

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLU A:23 , HIS A:27BINDING SITE FOR RESIDUE CO A 222
2AC2SOFTWAREHOH A:277 , HOH A:328BINDING SITE FOR RESIDUE CO A 223
3AC3SOFTWARETYR A:25 , LEU A:29 , CYS A:92 , THR A:94 , PHE A:103 , SER A:107 , PHE A:135 , PHE A:146 , LEU A:160 , PHE A:168 , HIS A:195BINDING SITE FOR RESIDUE FUA A 221
4ACTAUTHORHIS A:195ACTIVE SITE: HIS 195 ACTS AS A GENERAL BASE IN THE CATALYTIC MECHANISM

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1QCA)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1QCA)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1QCA)

(-) PROSITE Motifs  (1, 1)

Asymmetric Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CATPS00100 Chloramphenicol acetyltransferase active site.CAT3_ECOLX186-196  1A:192-202
Biological Unit 1 (1, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CATPS00100 Chloramphenicol acetyltransferase active site.CAT3_ECOLX186-196  3A:192-202
Biological Unit 2 (1, 6)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CATPS00100 Chloramphenicol acetyltransferase active site.CAT3_ECOLX186-196  6A:192-202

(-) Exons   (0, 0)

(no "Exon" information available for 1QCA)

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:211
 aligned with CAT3_ECOLX | P00484 from UniProtKB/Swiss-Prot  Length:213

    Alignment length:213
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210   
           CAT3_ECOLX     1 MNYTKFDVKNWVRREHFEFYRHRLPCGFSLTSKIDITTLKKSLDDSAYKFYPVMIYLIAQAVNQFDELRMAIKDDELIVWDSVDPQFTVFHQETETFSALSCPYSSDIDQFMVNYLSVMERYKSDTKLFPQGVTPENHLNISALPWVNFDSFNLNVANFTDYFAPIITMAKYQQEGDRLLLPLSVQVHHAVCDGFHVARFINRLQELCNSKLK 213
               SCOP domains d1qcaa_ A: Chloramphenicol acetyltransferase, CAT                                                                                                                                                                     SCOP domains
               CATH domains 1qcaA00 A:6-219 Chloramphenicol Acetyltransferase                                                                                                                                                                     CATH domains
               Pfam domains CAT-1qcaA01 A:6-211                                                                                                                                                                                          -------- Pfam domains
         Sec.struct. author ..eee..hhh...hhhhhhhh.....eeeeeeeee.hhhhhhhh.....hhhhhhhhhhhhhhh.hhh.eeee..eeeee...eeeeeeee....eeeeeee.....hhhhhhhhhhhhhhh..........--...eeeeeee.....................eeeee..eee..eeeeeeeeeee.....hhhhhhhhhhhhhhh..... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------CAT        ----------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1qca A   6 MNYTKFDVKNWVRREHFEFYRHRLPCGFSLTSKIDITTLKKSLDDSAYKFYPVMIYLIAQAVNQFDELRMAIKDDELIVWDSVDPCFTVFHQETETFSALSCPYSSDIDQFMVNYLSVMERYKSDTKLFPQG--PENHLFISALPWVNFDSFNLNVANFTDFFAPVITMAKYQQEGDRLLLPLSVQVHHAVCDGFHVARFINRLQELCNSKLK 219
                                    15        25        35        45        55        65        75  ||    86        96       106       116       126       136 |  |  146       156       166       176       186       196       206       216   
                                                                                                   78|                                                       138  |                                                                              
                                                                                                    80                                                          141
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  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 1)

Asymmetric Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (1, 1)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (1, 1)

Asymmetric Unit
(-)
Clan: CoA-acyltrans (22)

(-) Gene Ontology  (4, 4)

Asymmetric Unit(hide GO term definitions)
Chain A   (CAT3_ECOLX | P00484)
molecular function
    GO:0008811    chloramphenicol O-acetyltransferase activity    Catalysis of the reaction: chloramphenicol + acetyl-CoA = chloramphenicol 3-acetate + CoA.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
    GO:0016746    transferase activity, transferring acyl groups    Catalysis of the transfer of an acyl group from one compound (donor) to another (acceptor).
biological process
    GO:0046677    response to antibiotic    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an antibiotic stimulus. An antibiotic is a chemical substance produced by a microorganism which has the capacity to inhibit the growth of or to kill other microorganisms.

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  CAT3_ECOLX | P00484
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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        CAT3_ECOLX | P00484: 1cia 1cla 2cla 3cla 4cla

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