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(-) Description

Title :  THE STRUCTURE OF BACTERIOPHAGE T7 LYSOZYME, A ZINC AMIDASE AND AN INHIBITOR OF T7 RNA POLYMERASE
 
Authors :  X. Cheng
Date :  22 Dec 93  (Deposition) - 30 Apr 94  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym./Biol. Unit :  A
Keywords :  Hydrolase(Acting On Linear Amides) (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  X. Cheng, X. Zhang, J. W. Pflugrath, F. W. Studier
The Structure Of Bacteriophage T7 Lysozyme, A Zinc Amidase And An Inhibitor Of T7 Rna Polymerase.
Proc. Natl. Acad. Sci. Usa V. 91 4034 1994
PubMed-ID: 8171031  |  Reference-DOI: 10.1073/PNAS.91.9.4034
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - T7 LYSOZYME
    ChainsA
    EC Number3.5.1.28
    EngineeredYES
    Expression System GeneT7
    Expression System PlasmidT7
    Expression System Vector TypeT7
    GeneT7
    Organism ScientificENTEROBACTERIA PHAGE T7
    Organism Taxid10760

 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:17 , HIS A:122 , CYS A:130 , HOH A:199BINDING SITE FOR RESIDUE ZN A 151

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Cys A:130 -Pro A:131

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1LBA)

(-) Exons   (0, 0)

(no "Exon" information available for 1LBA)

(-) 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:146
 aligned with ENLYS_BPT7 | P00806 from UniProtKB/Swiss-Prot  Length:151

    Alignment length:146
                                    15        25        35        45        55        65        75        85        95       105       115       125       135       145      
           ENLYS_BPT7     6 FKQRESTDAIFVHCSATKPSQNVGVREIRQWHKEQGWLDVGYHFIIKRDGTVEAGRDEMAVGSHAKGYNHNSIGVCLVGGIDDKGKFDANFTPAQMQSLRSLLVTLLAKYEGAVLRAHHEVAPKACPSFDLKRWWEKNELVTSDRG 151
               SCOP domains d1lbaa_ A: Bacteriophage T7 lysozyme (Zn amidase)                                                                                                  SCOP domains
               CATH domains 1lbaA00 A:1-150 Lysozyme                                                                                                                           CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .........eeeee..........hhhhhhhhhhh........eeee...eeeee.................eeeee................hhhhhhhhhhhhhhhhhh.eeeee.............hhhhh........... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1lba A   1 AKQRESTDAIFVHCSATKPSQNVGVREIRQWHKEQGWLDVGYHFIIKRDGTVEAGRDEMAVGSHAKGYNHNSIGVCLVGGIDDKGKFDANFTPAQMQSLRSLLVTLLAKYEGAVLRAHHEVAPKACPSFDLKRWWEKNELVTSDRG 150
                            ||      14        24        34        44        54        64        74        84        94       104       114       124       134       144      
                            ||                                                                                                                                                
                            1|                                                                                                                                                
                             6                                                                                                                                                

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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

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1LBA)

(-) Gene Ontology  (11, 11)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (ENLYS_BPT7 | P00806)
molecular function
    GO:0008745    N-acetylmuramoyl-L-alanine amidase activity    Catalysis of the hydrolysis of the link between N-acetylmuramoyl residues and L-amino acid residues in certain bacterial cell-wall glycopeptides.
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    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:0019835    cytolysis    The rupture of cell membranes and the loss of cytoplasm.
    GO:0042742    defense response to bacterium    Reactions triggered in response to the presence of a bacterium that act to protect the cell or organism.
    GO:0008152    metabolic process    The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
    GO:0009253    peptidoglycan catabolic process    The chemical reactions and pathways resulting in the breakdown of peptidoglycans, any of a class of glycoconjugates found in bacterial cell walls.
    GO:0019076    viral release from host cell    The dissemination of mature viral particles from the host cell, e.g. by cell lysis or the budding of virus particles from the cell membrane.
cellular component
    GO:0030430    host cell cytoplasm    The cytoplasm of a host cell.

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 Related Entries

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

UniProtKB/Swiss-Prot
        ENLYS_BPT7 | P008061aro

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