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(-) Description

Title :  METALLO BETA LACTAMASE L1 FROM STENOTROPHOMONAS MALTOPHILIA
 
Authors :  J. H. Ullah, T. R. Walsh, I. A. Taylor, D. C. Emery, C. S. Verma, S. J. Gamblin, J. Spencer
Date :  22 Sep 98  (Deposition) - 20 Sep 99  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.70
Chains :  Asym./Biol. Unit :  A
Keywords :  Metallo-Beta-Lactamase, Antibiotic Resistance, Binuclear Zinc, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  J. H. Ullah, T. R. Walsh, I. A. Taylor, D. C. Emery, C. S. Verma, S. J. Gamblin, J. Spencer
The Crystal Structure Of The L1 Metallo-Beta-Lactamase From Stenotrophomonas Maltophilia At 1. 7 A Resolution.
J. Mol. Biol. V. 284 125 1998
PubMed-ID: 9811546  |  Reference-DOI: 10.1006/JMBI.1998.2148
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PROTEIN (PENICILLINASE)
    Cellular Location: PERIPLASM
    Chains: A
    EC Number: 3.5.2.6
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PUB 5832
    Expression System Strain: BL21 (DE3) PLYSS
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID PET26
    Gene: L1
    Organism Scientific: STENOTROPHOMONAS MALTOPHILIA
    Organism Taxid: 40324
    Other Details: L1 GENE FROM S. MALTOPHILIA OVER EXPRESSED IN E. COLI
    Strain: IID 1275

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric/Biological Unit (1, 2)
No.NameCountTypeFull Name
1ZN2Ligand/IonZINC ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP A:88 , HIS A:89 , HIS A:225 , ZN A:271 , HOH A:528 , HOH A:568BINDING SITE FOR RESIDUE ZN A 270
2AC2SOFTWAREHIS A:84 , HIS A:86 , HIS A:160 , ZN A:270 , HOH A:528 , HOH A:568BINDING SITE FOR RESIDUE ZN A 271

(-) SS Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1A:218 -A:246

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1BETA_LACTAMASE_B_1PS00743 Beta-lactamases class B signature 1.BLA1_STEMA102-122  1A:81-101

(-) Exons   (0, 0)

(no "Exon" information available for 1SML)

(-) 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:266
 aligned with BLA1_STEMA | P52700 from UniProtKB/Swiss-Prot  Length:290

    Alignment length:266
                                    32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282      
           BLA1_STEMA    23 EVPLPQLRAYTVDASWLQPMAPLQIADHTWQIGTEDLTALLVQTPDGAVLLDGGMPQMASHLLDNMKARGVTPRDLRLILLSHAHADHAGPVAELKRRTGAKVAANAESAVLLARGGSDDLHFGDGITYPPANADRIVMDGEVITVGGIVFTAHFMAGHTPGSTAWTWTDTRNGKPVRIAYADSLSAPGYQLQGNPRYPHLIEDYRRSFATVRALPCDVLLTPHPGASNWDYAAGARAGAKALTCKAYADAAEQKFDGQLAKETAG 288
               SCOP domains d1smla_ A: Zn metallo-beta-lactamase                                                                                                                                                                                                                                       SCOP domains
               CATH domains 1smlA00 A:2-267 Metallo-beta-lactamase, chain A                                                                                                                                                                                                                            CATH domains
               Pfam domains --------------------------------Lactamase_B-1smlA01 A:34-225                                                                                                                                                                    ------------------------------------------ Pfam domains
         Sec.struct. author .............hhhh.....eeee..eee........eeeee..eeeee....hhhhhhhhhhhhh....hhheeeee.....hhhh..hhhhhhh........hhhhhhhh............................eeee..eeeeeee........eeeeeeeee..eeeeeeee..................hhhhhhhhhhhhh.....eeee..hhhh...hhhhhh.......hhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------BETA_LACTAMASE_B_1   ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1sml A   2 EVPLPQLRAYTVDASWLQPMAPLQIADHTWQIGTEDLTALLVQTPDGAVLLDGGMPQMASHLLDNMKARGVTPRDLRLILLSHAHADHAGPVAELKRRTGAKVAANAESAVLLARGGSDDLHFGDGITYPPANADRIVMDGEVITVGGIVFTAHFMAGHTPGSTAWTWTDTRNGKPVRIAYADSLSAPGYQLQGNPRYPHLIEDYRRSFATVRALPCDVLLTPHPGASNWDYAAGARAGAKALTCKAYADAAEQKFDGQLAKETAG 267
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261
   Legend:   → Mismatch (orange background)
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  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  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: Alpha and beta proteins (a+b) (23004)

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Clan: Metallo-HOrase (67)

(-) Gene Ontology  (7, 7)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (BLA1_STEMA | P52700)
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.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0008270    zinc ion binding    Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
    GO:0017001    antibiotic catabolic process    The chemical reactions and pathways resulting in the breakdown of antibiotic, a substance produced by or derived from certain fungi, bacteria, and other organisms, that can destroy or inhibit the growth of other microorganisms.
    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.
cellular component
    GO:0042597    periplasmic space    The region between the inner (cytoplasmic) and outer membrane (Gram-negative Bacteria) or cytoplasmic membrane and cell wall (Fungi and Gram-positive Bacteria).

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  1sml
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 Related Entries

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

UniProtKB/Swiss-Prot
        BLA1_STEMA | P52700: 2aio 2fm6 2fu6 2fu7 2fu8 2fu9 2gfj 2gfk 2h6a 2hb9 2qdt 2qin 2qjs 5dpx 5evb 5evd 5evk 5hh5 5hh6

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