The family consists of Saccharomyces cerevisiae SOH1 homologues. SOH1 is responsible for the repression of temperature sensitive growth of the HPR1 mutant [1] and has been found to be a component of the RNA polymerase II transcription complex. SOH1 not only interacts with factors involved in DNA repair, but transcription as well. Thus, the SOH1 protein may serve to couple these two processes [2].

1: Characterization of mutations that suppress the temperature-sensitive growth of the hpr1 delta mutant of Saccharomyces cerevisiae. Fan HY, Klein HL; Genetics 1994;137:945-956. PMID:7982575

2: Mutations in the RNA polymerase II transcription machinery suppress the hyperrecombination mutant hpr1 delta of Saccharomyces cerevisiae. Fan HY, Cheng KK, Klein HL; Genetics 1996;142:749-759. PMID:8849885