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(-) Description

Title :  NMR STRUCTURE OF THE ZINC-RIBBON DOMAIN WITHIN TRANSLATION INITIATION FACTOR 2 SUBUNIT BETA
 
Authors :  S. Cho, D. W. Hoffman
Date :  22 Oct 01  (Deposition) - 24 Apr 02  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (10x)
Keywords :  Translation Initiation Factor, Zinc Ribbon (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  S. Cho, D. W. Hoffman
Structure Of The Beta Subunit Of Translation Initiation Factor 2 From The Archaeon Methanococcus Jannaschii: A Representative Of The Eif2Beta/Eif5 Family Of Proteins
Biochemistry V. 41 5730 2002
PubMed-ID: 11980477  |  Reference-DOI: 10.1021/BI011984N
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PROBABLE TRANSLATION INITIATION FACTOR 2 BETA SUBUNIT
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Plasmid: PET14B
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Organism Scientific: METHANOCALDOCOCCUS JANNASCHII
    Organism Taxid: 2190
    Synonym: EIF-2-BETA

 Structural Features

(-) Chains, Units

  
NMR Structure (10x): 

Summary Information (see also Sequences/Alignments below)

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

NMR Structure (1, 1)
No.NameCountTypeFull Name
1ZN1Ligand/IonZINC ION

(-) Sites  (1, 1)

NMR Structure (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWARECYS A:110 , CYS A:113 , CYS A:131 , CYS A:134BINDING SITE FOR RESIDUE ZN A 144

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1K81)

(-) Cis Peptide Bonds  (0, 0)

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 Sequence-Structure Mapping

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(-) Exons   (0, 0)

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(-) Sequences/Alignments

NMR Structure
   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:36
 aligned with IF2B_METJA | Q57562 from UniProtKB/Swiss-Prot  Length:143

    Alignment length:36
                                   117       127       137      
           IF2B_METJA   108 VICRECGKPDTKIIKEGRVHLLKCMACGAIRPIRMI 143
               SCOP domains d1k81a_ A:                           SCOP domains
               CATH domains ------------------------------------ CATH domains
               Pfam domains eIF-5_eIF-2B-1k81A01 A:108-139  ---- Pfam domains
         Sec.struct. author .........eeeeeee..eeeeeee...eeeee... Sec.struct. author
                 SAPs(SNPs) ------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------ PROSITE
                 Transcript ------------------------------------ Transcript
                 1k81 A 108 VICRECGKPDTKIIKEGRVHLLKCMACGAIRPIRMI 143
                                   117       127       137
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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)

NMR Structure
(-)
Class: Small proteins (3458)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1K81)

(-) Pfam Domains  (1, 1)

NMR Structure
(-)
Clan: no clan defined [family: eIF-5_eIF-2B] (4)

(-) Gene Ontology  (3, 3)

NMR Structure(hide GO term definitions)
Chain A   (IF2B_METJA | Q57562)
molecular function
    GO:0003743    translation initiation factor activity    Functions in the initiation of ribosome-mediated translation of mRNA into a polypeptide.
biological process
    GO:0006412    translation    The cellular metabolic process in which a protein is formed, using the sequence of a mature mRNA or circRNA molecule to specify the sequence of amino acids in a polypeptide chain. Translation is mediated by the ribosome, and begins with the formation of a ternary complex between aminoacylated initiator methionine tRNA, GTP, and initiation factor 2, which subsequently associates with the small subunit of the ribosome and an mRNA or circRNA. Translation ends with the release of a polypeptide chain from the ribosome.
    GO:0006413    translational initiation    The process preceding formation of the peptide bond between the first two amino acids of a protein. This includes the formation of a complex of the ribosome, mRNA or circRNA, and an initiation complex that contains the first aminoacyl-tRNA.

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 Related Entries

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

UniProtKB/Swiss-Prot
        IF2B_METJA | Q57562: 1k8b

(-) Related Entries Specified in the PDB File

1k8b NMR STRUCTURE ANALYSIS OF THE N-TERMINAL DOMAIN OF ARCHAEAL TRANSLATION INITIATION FACTOR 2 SUBUNIT BETA