roy@phri.UUCP (Roy Smith) (03/26/88)
Is there an unambigious way to parse the name of the restriction enzyme "BstXI"? It's clear that "Bst" is the genus and species, but what about the "XI" part? Is this the eleventh enzyme isolated from Bst or is it the first from Bst strain X? I'm pretty sure the answer is the latter, but how do you tell that from the name if you didn't know better? -- Roy Smith, {allegra,cmcl2,philabs}!phri!roy System Administrator, Public Health Research Institute 455 First Avenue, New York, NY 10016
werner@aecom.YU.EDU (Craig Werner) (03/26/88)
In article <3214@phri.UUCP>, roy@phri.UUCP (Roy Smith) writes: > > Is there an unambigious way to parse the name of the restriction > enzyme "BstXI"? The nomenclature is well defined (in an old article by Novick, I believe). It goes something like First Letter from Genus Next Two from Species Single Letter (this is bent a bit) from strain Roman Number for order of discovery Ergo: EcoRI from E coli R plasmid I HindIII Haemophilus influenza type d III BstXI Bacillus steat.... strain X I From the relaxed rules: Sau3AI S. au..... strain 3A I (In theory, there could be a Sau3AIII) Tth111I T. th..... strain 111 I -- Craig Werner (future MD/PhD, 3.5 years down, 3.5 to go) werner@aecom.YU.EDU -- Albert Einstein College of Medicine (1935-14E Eastchester Rd., Bronx NY 10461, 212-931-2517) "I just won't sleep, that's all."