Ferredoxin-fold anticodon binding domain
SMART accession number:SM00896
Description: This is the anticodon binding domain found in some phenylalanyl tRNA synthetases. The domain has a ferredoxin fold, consisting of an alpha+beta sandwich with anti-parallel beta-sheets (beta-alpha-beta x2).
Interpro abstract (IPR005121):

Aminoacyl-tRNA synthetases (aaRSs) play a crucial role in the translation of the genetic code by means of covalent attachment of amino acids to their cognate tRNAs. Phenylalanine-tRNA synthetase (PheRS, also known as Phenylalanine-tRNA ligase) is known to be among the most complex enzymes of the aaRS family. Bacterial and mitochondrial PheRSs share a ferredoxin-fold anticodon binding (FDX-ACB) domain, which represents a canonical double split alpha+beta motif having no insertions. The FDX-ACB domain displays a typical RNA recognition fold (RRM) formed by the four-stranded antiparallel beta sheet, with two helices packed against it [ (PUBMED:7664121) (PUBMED:9016717) (PUBMED:10049785) (PUBMED:12962494) (PUBMED:18611382) ].

Family alignment:
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There are 24139 FDX-ACB domains in 24139 proteins in SMART's nrdb database.

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