STE2 protein of Saccharomyces kluyveri is a member of the rhodopsin/beta-adrenergic receptor family and is responsible for recognition of the peptide ligand a factor. Proc. Natl. Acad. Sci. USA 85:3855-3859., 1988, Subseries B, Carton: Mss 1. Ira Herskowitz Papers, MSS-2002-25. UCSF Archives and Special Collections. https://public.ucsf.aspace.cdlib.org/repositories/8/archival_objects/790 Accessed July 27, 2025.