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Links from Protein

Items: 6

1.

tRNA N6-adenosine threonylcarbamoyltransferase

This domain can be found in Kae1/Qri7/YgjD, products of COG0533 that belong to a small group of 60 proteins that are present in all three domains of life. COG0533 proteins are suggest to play a role in a post translational modification of certain tRNAs. For example, YgjD along with YeaZ, YjeE, and YrdC have been deemed necessary and sufficient for the tRNA modification [1]. This modification involves the formation of N6-threonyl carbamoyl adenosine (t6A) at position 37 in the anti-codon stem loop which is critical for translational speed and accuracy [2]. Structural analysis indicate that YeaZ lacks resemblance to any known protease active site. Together with the absence of a putative zinc-binding motif. Thus the likelyhood of it being a protease, as previously thought, has been negated [1]. EC:2.3.1.234 [1]. 23471679. Crystal structure of the dimer of two essential Salmonella typhimurium proteins, YgjD & YeaZ and calorimetric evidence for the formation of a ternary YgjD-YeaZ-YjeE complex. Nichols CE, Lamb HK, Thompson P, El Omari K, Lockyer M, Charles I, Hawkins AR, Stammers DK;. Protein Sci. 2013;22:628-640. [2]. 26798630. Global translational impacts of the loss of the tRNA modification t(6)A in yeast. Thiaville PC, Legendre R, Rojas-Benitez D, Baudin-Baillieu A, Hatin I, Chalancon G, Glavic A, Namy O, de Crecy-Lagard V;. Microb Cell. 2016;3:29-45. (from Pfam)

Date:
2024-10-16
Family Accession:
NF013012.5
Method:
HMM
2.
new record, indexing in progress
Family Accession:
3.
new record, indexing in progress
Family Accession:
4.
new record, indexing in progress
Family Accession:
5.

tRNA threonylcarbamoyladenosine biosynthesis protein TsaB

tRNA threonylcarbamoyladenosine biosynthesis protein TsaB (also known as YeaZ) is required for the formation of a threonylcarbamoyl group on adenosine at position 37 (t(6)A37) in tRNAs that read codons beginning with adenine

Date:
2024-07-24
Family Accession:
10003119
Method:
Sparcle
6.

tRNA (adenosine(37)-N6)-threonylcarbamoyltransferase complex dimerization subunit type 1 TsaB

This family describes a protein family, YeaZ, now associated with the threonylcarbamoyl adenosine (t6A) tRNA modification. Members of this family may occur as fusions with ygjD (previously gcp) or the ribosomal protein N-acetyltransferase rimI, and is frequently encoded next to rimI.

Gene:
tsaB
GO Terms:
Biological Process:
tRNA threonylcarbamoyladenosine modification (GO:0002949)
Date:
2024-05-14
Family Accession:
TIGR03725.1
Method:
HMM
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