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. 2004 Feb 10;32(3):1091–1096. doi: 10.1093/nar/gkh266

Table 1. Kinetic parameters for lysylation by yeast LysRS of yeast tRNALys and M.barkeri tRNAPyl transcripts.

  KM (nM) kcat (min–1) kcat/KM (min–1 nM–1)
Yeast tRNALys
 12
 230
 19.1
M.barkeri tRNAPyl(CUA)
 ND
 ND
 ND
M.barkeri tRNAPyl(UUU) 800 0.018 2,25.10–5

ND, no lysylation detected.