protein trimers

[Edwin ten Dam]

Jay Evans wrote:
>
> I am looking for any information (refs) on DNA binding proteins that form
> trimers in solution or when bound to DNA (or RNA).  Any references or
> leads you can give me would be greatly appreciated.
>
> Jay Evans
> evansj at bcc.orst.edu

The primase-helicase complex from herpes simplex virus is a trimer of
the UL5, 8, and 52 gene products.  I haven't kept up with the literature
over the last few years, but here's a ref that might be useful:

Crute, J.J., Tsurumi, T., Zhu, L., Weller, S.K., Olivo, P.D., Challberg,
M.D., Mocarski, E.S., and Lehman, I.R. (1989). Herpes Simplex Virus i
Helicase-Primase: A Complex of Three Herpes Encoded Gene Products. Proc.
Natl. Acad. Sci. USA 86, 2186-2189.

Mark Challberg, Sandra Weller and Nigel Stow's labs have published on
the area since, if you want to look further.

Cheers

Paul


Paul Digard
Division of Virology
Department of Pathology
University of Cambridge