This model finds the cysteinyl-tRNA synthetase from most but not from all species. The enzyme from one archaeal species, Archaeoglobus fulgidus, is found but the equivalent enzymes from some other Archaea, including Methanococcus jannaschii, are not found, although biochemical evidence suggests that tRNA(Cys) in these species are charged directly with Cys rather than through a misacylation and correction pathway as for tRNA(Gln). [Protein synthesis, tRNA aminoacylation]
Jiyao W et al.(2023). "The conserved domain database in 2023.",