In article <CMM.0.88.685908696.kristoff at genbank.bio.net> kristoff at GENBANK.BIO.NET (Dave Kristofferson) writes:
>What is the longest stretch of sequence *identity,* not just similarity,
known between the mouse and bovine versions of the same protein?
As a minimum, start with 135 amino acids. This is the length of histone
H3. All mammals have two forms differing by one serine-cystein change
at position 96. Interestingly, in human and cow, 80% of the protein is
H3.1, but in rodents 80% of the protein is H3.2.
The other histones are similar in size, and probably also have identical
variants in both cows and rodents.
I don't have the exact reference off the top of my head, but every 2-3
years Dan Wells publishes a big compilation of all histone sequences in
the supplement to NAR.
debry at ds1.scri.fsu.edu