Yeast protoplasts /lyticase

[Jaime Arenas]

> Does anyone know a good enzyme (and source!) for degrading yeast
> (Saccharomyces cerevisiae) cell walls to make protoplasts? We have
> had a go with Sigma lyticase (mixture of stuff from Arthrobacter), which
> certainly lives up to its name (i.e. clobbers the protoplasts after making
> them). Once upon a time there was helkicase from snails, which is supposed to
> be good (not in Sigma catalogue). [that was helicase!]


We always use Zymolyase from  SEIKAGAKU with good results.

ZYMOLYASE - 100T
CAT# 120493
SEIKAGAKU AMERICA INC.
P.O. BOX 21517
St. Petersburg, FL 33742

info   (800) 237-4512
telex  52-9422 SKK STB
Fax    (813) 576-1870


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Jaime Arenas, Ph.D.
Division of Biology 147-75
CALTECH
Pasadena, CA 91125

ARENAS at CITIAGO.BITNET
ARENAS at IAGO.CALTECH.EDU