January 17, 2008

Naming Genes and Mutants

Posted by Eric at 12:36 am | Category: Academia, Biology, Literature

I’ve always had a strong dislike about certain biology naming conventions, but one thing that I always found rather strange was some of the whimsical and utterly meaningless names given to some genes and mutants. Take hedgehog, for example, or Bicoid. Meaningless names, really; they vaguely correspond to some sort of phenotype, but other than that, have very little to do with the actual biological function.

A paper I’m reading for a class, however, gleefully points out that meaningless names have their purpose: they don’t go obsolete with new information:

Epstein was struck by the similarity of the amber mutants and the so-called hd, or host-defective mutants….Who first had the idea that amber mutations are a general class of “suppressor-sensitive” mutations, I don’t recall….That year, Campbell did further experiments to show that the hd mutants (then renamed sus, for suppressor-sensitive) were in fact responding to a bacterial suppressor gene…

(It is amusing to note that Campbell found it necessary to rename his mutants after learning more about them, whereas the name amber is just as meaningless, and thus just as useful, now, as when the mutants were first discovered and named for Mrs. Bernstein.)

Edgar, R.S. 1966. In: Phage and the Origins of Molecular Biology, Cold Spring Harbor Laboratory, NY. p. 166-170.

hd and amber mutants are the same type of mutant, and “amber” is the English version of the German name “Bernstein.”

So, perhaps those Drosophila geneticists are doing a service to the rest of us after all.

3 Responses to “Naming Genes and Mutants”

  1. Apollo Says:
    January 17th, 2008 at 9:52 am

    I’m sure the scientist who named the hedgehog protein was just paying homage to that (activity) which kept him/her sane through grad school!

  2. dacrotty Says:
    January 17th, 2008 at 11:26 am

    Hedgehog isn’t so bad, as the crinkled up mutant fly embryos looked like hedgehogs. The annoying thing is that all the related genes found later ended up with names like “Sonic Hedgehog”, “Indian Hedgehog” and “Tiggywinkle”.

    Actually, most annoying of all are the folks who find a gene and give it a new name, even though when they sequence it, they find out it’s already been found and named in other species. The zebrafish community is particularly egregious with this. Xnot becomes “floating head”, brachyury becomes “no tail”. I say, once a gene is found and named, you have to use that name, or a derivative thereof, when you clone and sequence it in your species. Otherwise one has to keep a conversion chart or memorize a completely new set of names for each species.

  3. The Futile Cycle » Blog Archive » Lucky Choices Says:
    January 21st, 2008 at 12:30 am

    [...] There’s an interesting article in Genetics on the luckiness of biology’s initial choice of bacteria to study. One of the most common bacterial types that molecular biologists studied back in the mid-20th century was E. coli K12. K12 was used a lot because it harbored a dormant λ virus (allowing the discovery of one of the most elegant genetic switches ever found), an F+ plasmid, and many suppressors of amber mutants (which I mentioned before). [...]

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