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(-) Description

Title :  STRUCTURE OF BETA-LACTAMASE II FROM BACILLUS CEREUS. R121H, C221S DOUBLE MUTANT. SPACE GROUP C2.
 
Authors :  F. J. Medrano Martin, A. J. Vila, J. M. Gonzalez
Date :  23 Nov 06  (Deposition) - 29 May 07  (Release) - 12 May 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.28
Chains :  Asym./Biol. Unit :  A
Keywords :  Beta-Lactamase Ii, Bacillus Cereus, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  J. M. Gonzalez, F. J. Medrano Martin, A. L. Costello, D. L. Tierney, A. J. Vila
The Zn2 Position In Metallo-Beta-Lactamases Is Critical For Activity: A Study On Chimeric Metal Sites On A Conserved Protein Scaffold.
J. Mol. Biol. V. 373 1141 2007
PubMed-ID: 17915249  |  Reference-DOI: 10.1016/J.JMB.2007.08.031
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - BETA-LACTAMASE II
    Chains: A
    EC Number: 3.5.2.6
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Strain: BL21 (DE3)
    Expression System Taxid: 469008
    Gene: BLM
    Organism Scientific: BACILLUS CEREUS
    Organism Taxid: 1396
    Synonym: PENICILLINASE, CEPHALOSPORINASE

 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
1ZN1Ligand/IonZINC ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:86 , HIS A:88 , HIS A:149BINDING SITE FOR RESIDUE ZN A 228

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2NZF)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2NZF)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2NZF)

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1BETA_LACTAMASE_B_1PS00743 Beta-lactamases class B signature 1.BLA2_BACCE113-132  1A:83-102
2BETA_LACTAMASE_B_2PS00744 Beta-lactamases class B signature 2.BLA2_BACCE189-201  1A:159-171

(-) Exons   (0, 0)

(no "Exon" information available for 2NZF)

(-) 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:215
 aligned with BLA2_BACCE | P04190 from UniProtKB/Swiss-Prot  Length:257

    Alignment length:221
                                    46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256 
           BLA2_BACCE    37 TVIKNETGTISISQLNKNVWVHTELGSFNGEAVPSNGLVLNTSKGLVLVDSSWDDKLTKELIEMVEKKFQKRVTDVIITHAHADRIGGIKTLKERGIKAHSTALTAELAKKNGYEEPLGDLQTVTNLKFGNMKVETFYPGKGHTEDNIVVWLPQYNILVGGCLVKSTSAKDLGNVADAYVNEWSTSIENVLKRYRNINAVVPGHGEVGDKGLLLHTLDLLK 257
               SCOP domains d2nzfa_ A: Zn metallo-beta      -lactamase                                                                                                                                                                                    SCOP domains
               CATH domains 2nzfA00 A:7-227 Metallo-be      ta-lactamase, chain A                                                                                                                                                                         CATH domains
               Pfam domains --------------------------------Lactamase_B-2nzfA01 A:39-210                                                                                                                                                ----------------- Pfam domains
         Sec.struct. author .eee.....eeeeeee..eeeeee..------..eeeeeeee..eeeee....hhhhhhhhhhhhhhhhh..eeeee....hhhhhhhhhhhhhh..eee.hhhhhhhhhhh...........eeeeee..eeeeee...........eeee....eeeeehhh..............hhhhhhhhhhhhhhhh....eeee.......hhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------BETA_LACTAMASE_B_1  --------------------------------------------------------BETA_LACTAMAS-------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2nzf A   7 TVIKNETGTISISQLNKNVWVHTELG------VPSNGLVLNTSKGLVLVDSSWDDKLTKELIEMVEKKFQKRVTDVIITHAHADHIGGIKTLKERGIKAHSTALTAELAKKNGYEEPLGDLQTVTNLKFGNMKVETFYPGKGHTEDNIVVWLPQYNILVGGSLVKSTSAKDLGNVADAYVNEWSTSIENVLKRYRNINAVVPGHGEVGDKGLLLHTLDLLK 227
                                    16        26     |   -  |     46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226 
                                                    32     39
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
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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   (BLA2_BACCE | P04190)
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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 Related Entries

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

UniProtKB/Swiss-Prot
        BLA2_BACCE | P04190: 1bc2 1bmc 1bvt 1dxk 1mqo 2bc2 2bfk 2bfl 2bfz 2bg2 2bg6 2bg7 2bg8 2bga 2m5c 2m5d 2nxa 2nyp 2nze 2uyx 3bc2 3fcz 3i0v 3i11 3i13 3i14 3i15 3knr 3kns 4c09 4c1c 4c1h 4nq4 4nq5 4nq6 4nq7 4tyt 5fqa 5fqb 5jmx 5w8w

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