Sensitivity of polyclonals on Western

Dmitry Belostotsky dab at CNSVAX.ALBANY.EDU
Thu Jun 10 09:56:51 EST 1999

Dear netters
What would be considered a reasonable sensitivity for polyclonals on
Westerns (how many ng/pg should one expect to be able to detect?). We
have a situation where we complemented certain yeast mutant with the
plant homolog but cannot detect the respective protein in total yeast
extract (artifacts like suppressor mutations can be excluded). We can
see as little as 3-5 ng of recombinant protein on Westerns - is that a
reasonable sensitivity? Our Abs are against a C-terminal synthetic
peptide. Thanks
Dmitry A. Belostotsky
Assistant Professor

Department of Biological Sciences
State University of New York at Albany
1400 Washington Ave.
Albany NY 12222
Tel. (518) 442 4368
FAX  (518) 442 4767
E-mail dab at

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