The enzymes from the thermophilic bacterium?Thermus thermophilus?and the thermophilic archaea?Sulfolobus acidocaldarius?and?Sulfolobus tokodaii?protect the amino group of?L-2-aminoadipate by conjugation to the carrier protein LysW. This reaction is part of the lysine biosynthesis pathway in these organisms. Formerly EC?6.3.2.n4.