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(-) Description

Title :  STRUCTURE OF BETA-LACTAMASE GLU166GLN:ASN170ASP MUTANT
 
Authors :  C. C. H. Chen, O. Herzberg
Date :  20 May 99  (Deposition) - 28 May 99  (Release) - 16 Nov 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.30
Chains :  Asym./Biol. Unit :  A
Keywords :  Hydrolase, Antibiotic Resistance, Beta-Lactam Hydrolysis (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  C. C. Chen, O. Herzberg
Relocation Of The Catalytic Carboxylate Group In Class A Beta-Lactamase: The Structure And Function Of The Mutant Enzyme Glu166-->Gln:Asn170-->Asp.
Protein Eng. V. 12 573 1999
PubMed-ID: 10436083  |  Reference-DOI: 10.1093/PROTEIN/12.7.573
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PROTEIN (BETA-LACTAMASE)
    Chains: A
    EC Number: 3.5.2.6
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Gene: BLAZ
    Expression System Plasmid: PTS32
    Expression System Taxid: 562
    Gene: BLAZ
    Mutation: YES
    Organism Scientific: STAPHYLOCOCCUS AUREUS
    Organism Taxid: 1280
    Strain: PC1
    Synonym: PENICILLINASE

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 1)

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1SO41Ligand/IonSULFATE ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWARESER A:70 , SER A:130 , LYS A:234 , SER A:235 , GLY A:236 , GLN A:237BINDING SITE FOR RESIDUE SO4 A 292

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Gln A:166 -Ile A:167

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1BETA_LACTAMASE_APS00146 Beta-lactamase class-A active site.BLAC_STAAU59-74  1A:66-81

(-) Exons   (0, 0)

(no "Exon" information available for 1KGG)

(-) Sequences/Alignments

Asymmetric/Biological 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:257
 aligned with BLAC_STAAU | P00807 from UniProtKB/Swiss-Prot  Length:281

    Alignment length:257
                                    34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       
           BLAC_STAAU    25 KELNDLEKKYNAHIGVYALDTKSGKEVKFNSDKRFAYASTSKAINSAILLEQVPYNKLNKKVHINKDDIVAYSPILEKYVGKDITLKALIEASMTYSDNTANNKIIKEIGGIKKVKQRLKELGDKVTNPVRYEIELNYYSPKSKKDTSTPAAFGKTLNKLIANGKLSKENKKFLLDLMLNNKSGDTLIKDGVPKDYKVADKSGQAITYASRNDVAFVYPKGQSEPIVLVIFTNKDNKSDKPNDKLISETAKSVMKEF 281
               SCOP domains d1kgga_ A: beta-Lactamase, class A                                                                                                                                                                                                                                SCOP domains
               CATH domains 1kggA00 A:31-290 DD-peptidase/beta-lactamase superfamily                                                                                                                                                                                                          CATH domains
               Pfam domains --Beta-lactamase-1kggA01 A:33-284                                                                                                                                                                                                                          ------ Pfam domains
         Sec.struct. author ..hhhhhhhh..eeeeeeee.....eeee....eee.hhhhhhhhhhhhh....hhh...eeee.hhh.......hhhh..eeeehhhhhhhhhh...hhhhhhhhhhh..hhhhhhhhhh.........................eeehhhhhhhhhhhh......hhhhhhhhhhhh..hhh...hhhh.....eeeeeeee......eeeeeeee.......eeeeeeee.........hhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------BETA_LACTAMASE_A--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1kgg A  31 KELNDLEKKYNAHIGVYALDTKSGKEVKFNSDKRFAYASTSKAINSAILLEQVPYNKLNKKVHINKDDIVAYSPILEKYVGKDITLKALIEASMTYSDNTANNKIIKEIGGIKKVKQRLKELGDKVTNPVRYQIELDYYSPKSKKDTSTPAAFGKTLNKLIANGKLSKENKKFLLDLMLNNKSGDTLIKDGVPKDYKVADKSGQAITYASRNDVAFVYPKGQSEPIVLVIFTNKDNKSDKPNDKLISETAKSVMKEF 290
                                    40        50      ||61        71        81  ||    93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       
                                                     57|                       84|                                                                                                                                                                                                           
                                                      59                        87
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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/Biological Unit
(-)
Class: Multi-domain proteins (alpha and beta) (2421)

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Clan: Beta-lactamase (210)

(-) Gene Ontology  (4, 4)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (BLAC_STAAU | P00807)
molecular function
    GO:0008800    beta-lactamase activity    Catalysis of the reaction: a beta-lactam + H2O = a substituted beta-amino acid.
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
biological process
    GO:0030655    beta-lactam antibiotic catabolic process    The chemical reactions and pathways resulting in the breakdown of a beta-lactam antibiotic, any member of a class of natural or semisynthetic antibiotics whose characteristic feature is a strained, four-membered beta-lactam ring. They include the penicillins and many of the cephalosporins.
    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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 Related Entries

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

UniProtKB/Swiss-Prot
        BLAC_STAAU | P00807: 1alq 1blc 1blh 1blp 1dja 1djb 1djc 1ghi 1ghm 1ghp 1kge 1kgf 1ome 1pio 3blm

(-) Related Entries Specified in the PDB File

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