Threonyl/alanyl tRNA synthetase, SAD (IPR012947)

Short name: tRNA_SAD

Overlapping homologous superfamilies

Domain relationships



The catalytically active form of threonyl/alanyl tRNA synthetase is a dimer. Within the tRNA synthetase class II dimer, the bound tRNA interacts with both monomers making specific interactions with the catalytic domain, the C-terminal domain, and this SAD domain (the second additional domain). The second additional domain is comprised of a pair of perpendicularly orientated antiparallel beta sheets, of four and three strands, respectively, that surround a central alpha helix that forms the core of the domain [PMID: 10319817].

GO terms

Biological Process

GO:0043039 tRNA aminoacylation

Molecular Function

GO:0005524 ATP binding
GO:0004812 aminoacyl-tRNA ligase activity

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.