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Annotation rule MF_00121 |
General rule information
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Accession |
MF_00121 |
Dates |
1-JUN-2001 (Created) 18-NOV-2019 (Last updated, Version 27) |
case <OC:Bacteria> or <OC:Archaea>
end case
Propagated annotation
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Identifier, protein and gene names
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Protein name |
RecName:
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Full=Aspartyl/glutamyl-tRNA(Asn/Gln) amidotransferase subunit B;
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Short=Asp/Glu-ADT subunit B;
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EC 6.3.5.-;
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Function |
Allows the formation of correctly charged Asn-tRNA(Asn) or Gln-tRNA(Gln) through the transamidation of misacylated Asp-tRNA(Asn) or Glu-tRNA(Gln) in organisms which lack either or both of asparaginyl-tRNA or glutaminyl-tRNA synthetases. The reaction takes place in the presence of glutamine and ATP through an activated phospho-Asp-tRNA(Asn) or phospho-Glu-tRNA(Gln). |
Catalytic activity |
RHEA:17521: ATP + H2O + L-glutamine + L-glutamyl-tRNA(Gln) = ADP + H(+) + L-glutamate + L-glutaminyl-tRNA(Gln) + phosphate
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RHEA:14513: ATP + H2O + L-aspartyl-tRNA(Asn) + L-glutamine = ADP + 2 H(+) + L-asparaginyl-tRNA(Asn) + L-glutamate + phosphate
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Subunit |
Heterotrimer of A, B and C subunits. |
Similarity |
Belongs to the GatB/GatE family. GatB subfamily. |
GO:0050567; Molecular function: glutaminyl-tRNA synthase (glutamine-hydrolyzing) activity.
GO:0006412; Biological process: translation.
Additional information
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Size range |
449-517 amino acids |
Related rules |
MF_00588 (GATE) |
Fusion |
Nter: MF_00126 (glnS); Cter: None |