Identification of a Saccharomyces cerevisiae homolog of the SNF2 transcriptional regulator in the DNA sequence of an 8.6 kb region in the LTE1-CYS1 interval on the left arm of chromosome I.

The DNA sequence of an 8.6 kb region of the left arm of chromosome I has been determined. This region, between the LTE1 and CYS1 loci, is approximately 40 kb from the centromere. There are six potential open-reading frames (ORFs), provisionally named YAL001-006 within this fragment of chromosome I. Four of these ORFs can be aligned with previously identified FUN transcripts: FUN28 with YAL006, FUN29 with YAL004, FUN30 with YAL001 and FUN31 with YAL002. The YAL001 ORF shows significant homology to the SNF2 transcriptional regulator. A region of the DNA contains an extensive repeat of the bases C-A-T positioned in the 5' terminus of the YAL004 promoter region.