Protease deficient yeast strains

[Michael Goodin]

Dear friends,

I am looking for a source of a protease deficient S. cerevisiae carrying,
at least, four marker - his3, ura3-52, trp1 and leu2.  Diploid or haploid
strains are acceptable.

thanks,

Michael


P.S. respond to Teresa Rubio - rubiot at mendel.berkerley.edu or Michael
Goodin - mgoodin at nature.berkeley.edu