HSP phylogeny?

S. LaBonne labonnes at csc.albany.edu
Fri Dec 16 14:00:45 EST 1994


In article <3cpuio$5gi at babyblue.cs.yale.edu>,
Peter Gogarten <peter at carrot.mcb.uconn.edu> wrote:
>
> As the HSP70 homologues suggest relationships very distinct from 
>ATPases (and 16S rRNA) 

AND, let us not forget, also very distinct from: arginosuccinate
syntetase, Ef-1alpha (or Tu), Ef-G (or2), HMG-Coa reductase,
isoleucyl-tRNA synthetase, ribosomal proteins L2, L3, L6, L10, L22,
L23, S9, S10, and RNA pol II- all of which have been shown to give
midpoint-rooted trees that place the Archaea and Eukarya together.
Not to mention that that there _are_ other sequences that place the
Bacteria and Eukarya together, and still others that yield equal
interdomain distances. (About as many in each case as support the tree
with all prokaryotes grouped together.) This issue will not be
resolved by jumping on one or two favorite proteins that give the
answer preferred by a particular investigator.

By the way, how do you view the significance of the increasingly
strong evidence for a eukaryote-like transcriptional machinery in
Archaea?



-- 
Steve LaBonne *********************** (labonnes at csc.albany.edu)
"It can never be satisfied, the mind, never." - Wallace Stevens



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