I need to identify all proteins in swiss_prot, PIR, and genepept which are Saccharomyces and between 12Kdal and 20Kdal. Anyone know how to do this?? Michael Parker mparker at fhcrc.org Manager of Biocomputing Shared Resource (206)667-4501 (206)667-6525 FAX Fred Hutchinson Cancer Research Center 1124 Columbia Street, B1-030 Seattle, WA 98104