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(-) Description

Title :  SOLUTION STRUCTURE OF THE N-TERMINAL SUBDOMAIN OF TRANSLATION INITIATION FACTOR IF2
 
Authors :  B. S. Laursen, K. K. Mortensen, H. U. Sperling-Petersen, D. W. Hoffman
Date :  09 Dec 02  (Deposition) - 04 Mar 03  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (10x)
Keywords :  If2, Translation, Initiation Factor (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  B. S. Laursen, K. K. Mortensen, H. U. Sperling-Petersen, D. W. Hoffman
A Conserved Structural Motif At The N Terminus Of Bacterial Translation Initiation Factor If2
J. Biol. Chem. V. 278 16320 2003
PubMed-ID: 12600987  |  Reference-DOI: 10.1074/JBC.M212960200
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - TRANSLATION INITIATION FACTOR IF-2
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Plasmid: PET15B
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Fragment: N-TERMINAL DOMAIN
    Gene: K12
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 562

 Structural Features

(-) Chains, Units

  
NMR Structure (10x): 

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1ND9)

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(-) SS Bonds  (0, 0)

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(-) Cis Peptide Bonds  (0, 0)

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 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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(-) PROSITE Motifs  (0, 0)

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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:49
 aligned with IF2_ECOLI | P0A705 from UniProtKB/Swiss-Prot  Length:890

    Alignment length:49
                                    11        21        31        41         
             IF2_ECOLI    2 TDVTIKTLAAERQTSVERLVQQFADAGIRKSADDSVSAQEKQTLIDHLN 50
               SCOP domains d1nd9a_ A:                                        SCOP domains
               CATH domains 1nd9A00 A:2-50                                    CATH domains
               Pfam domains IF2_N-1nd9A01 A:2-50                              Pfam domains
         Sec.struct. author .ee..hhhhhhhh.hhhhhhhhhhhhh........ee.hhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------- Transcript
                  1nd9 A  2 TDVTIKTLAAERQTSVERLVQQFADAGIRKSADDSVSAQEKQTLIDHLN 50
                                    11        21        31        41
   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)

NMR Structure
(-)
Class: All alpha proteins (14657)

(-) CATH Domains  (1, 1)

NMR Structure
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (1, 1)

NMR Structure
(-)
Clan: HTH (544)

(-) Gene Ontology  (13, 13)

NMR Structure(hide GO term definitions)
Chain A   (IF2_ECOLI | P0A705)
molecular function
    GO:0005525    GTP binding    Interacting selectively and non-covalently with GTP, guanosine triphosphate.
    GO:0003924    GTPase activity    Catalysis of the reaction: GTP + H2O = GDP + phosphate.
    GO:0097216    guanosine tetraphosphate binding    Interacting selectively and non-covalently with guanosine tetraphosphate (5'-ppGpp-3'), a guanosine bisphosphate having diphosphate groups at both the 3' and 5'-positions.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0043024    ribosomal small subunit binding    Interacting selectively and non-covalently with any part of the small ribosomal subunit.
    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.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
    GO:0005622    intracellular    The living contents of a cell; the matter contained within (but not including) the plasma membrane, usually taken to exclude large vacuoles and masses of secretory or ingested material. In eukaryotes it includes the nucleus and cytoplasm.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

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 Related Entries

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UniProtKB/Swiss-Prot
        IF2_ECOLI | P0A705: 1zo1 3jcj 3jcn 5me0 5me1

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