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HAMAP rule MF_00071
General rule information
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Accession | MF_00071 |
Dates | 1-JUN-2001 (Created)
1-JUN-2023 (Last updated, Version 30) |
Name | LepA |
Scope(s) |
Bacteria |
Template(s) | P60785 (LEPA_ECOLI); O67618 (LEPA_AQUAE); Q2FXY7 (LEPA_STAA8); [ Recover all ] |
Triggered by |
case c? <OC:Bacteria>
HAMAP; MF_00071 (Get profile general information and statistics) end case
|
Propagated annotation
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Identifier, protein and gene names
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Identifier | LEPA |
RecName: Full=Elongation factor 4;<br /> Short=EF-4;<br /> EC=<a href="https://enzyme.expasy.org/EC/3.6.5.n1">3.6.5.n1</a>;<br /> AltName: Full=Ribosomal back-translocase LepA; | |
Gene name | Name=lepA; |
Comments
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FUNCTION | Required for accurate and efficient protein synthesis under certain stress conditions. May act as a fidelity factor of the translation reaction, by catalyzing a one-codon backward translocation of tRNAs on improperly translocated ribosomes. Back-translocation proceeds from a post-translocation (POST) complex to a pre- translocation (PRE) complex, thus giving elongation factor G a second chance to translocate the tRNAs correctly. Binds to ribosomes in a GTP- dependent manner. |
CATALYTIC ACTIVITY | Reaction=GTP + H2O = GDP + H(+) + phosphate; Xref=Rhea:RHEA:19669, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:37565, ChEBI:CHEBI:43474, ChEBI:CHEBI:58189; EC=3.6.5.n1; |
case not defined <Property:Membrane> or <Property:Membrane=1> | |
SUBCELLULAR LOCATION | Cell membrane; Peripheral membrane protein; Cytoplasmic side. |
else case <Property:Membrane=2> | |
SUBCELLULAR LOCATION | Cell inner membrane; Peripheral membrane protein; Cytoplasmic side. |
end case | |
SIMILARITY | Belongs to the TRAFAC class translation factor GTPase superfamily. Classic translation factor GTPase family. LepA subfamily. |
Keywords
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Cell membrane | |
case defined <Property:Membrane> and <Property:Membrane=2> | |
Cell inner membrane | |
end case | |
GTP-binding | |
Hydrolase | |
Membrane | |
Nucleotide-binding | |
Protein biosynthesis |
Gene Ontology
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GO:0005886; Cellular component:plasma membrane |
GO:0005525; Molecular function:GTP binding |
GO:0003924; Molecular function:GTPase activity |
GO:0043022; Molecular function:ribosome binding |
GO:0003746; Molecular function:translation elongation factor activity |
GO:0045727; Biological process:positive regulation of translation |
Cross-references
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Pfam | PF00679; EFG_C; 1; |
Pfam | PF00009; GTP_EFTU; 1; |
Pfam | PF03144; GTP_EFTU_D2; 1; |
Pfam | PF06421; LepA_C; 1; |
PRINTS | PR00315; ELONGATNFCT; 1; |
NCBIfam | TIGR01393; LepA; 1; |
NCBIfam | TIGR00231; Small_GTP; 1; |
PROSITE | PS00301; G_TR_1; 1; |
PROSITE | PS51722; G_TR_2; 1; |
Features
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From: LEPA_AQUAE (O67618) | ||||||||||||
Key | From | To | Description | Tag | Condition | FTGroup | ||||||
BINDING | 16 | 21 | /ligand="GTP" /ligand_id="ChEBI:CHEBI:37565" |
[DN]-H-G-K-[ST]-T | ||||||||
BINDING | 133 | 136 | /ligand="GTP" /ligand_id="ChEBI:CHEBI:37565" |
[NS]-K-[LIVMCA]-D |
Additional information
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Size range | 593-660 amino acids |
Related rules |
MF_03138 |
Fusion | Nter: None Cter: None |