Protein Family Models

COQ9 is an enzyme that is required for the biosynthesis of coenzyme Q [1]. It may either catalyse a reaction in the coenzyme Q biosynthetic pathway or have a regulatory role. [1]. 16027161. COQ9, a new gene required for the biosynthesis of coenzyme Q in Saccharomyces cerevisiae. Johnson A, Gin P, Marbois BN, Hsieh EJ, Wu M, Barros MH, Clarke CF, Tzagoloff A;. J Biol Chem 2005; [Epub ahead of print] (from Pfam)

Date:

2024-10-16

protein similar to ubiquinone biosynthesis protein COQ9

Date:

2017-03-02

This uncharacterized protein is found in a number of Alphaproteobacteria and, with N-terminal regions long enough to be transit peptides, in eukaryotes. This phylogeny suggests mitochondrial derivation. In several Alphaproteobacteria, the gene for this protein is encoded divergently from rpsU, the gene for ribosomal protein S21. S21 is unusual in being encoded outside the usual long ribosomal protein operons, but rather in contexts that suggest regulation of the initiation of protein translation.

Date:

2024-08-07