DNA sequence and functional analysis of homologous ARS elements of Saccharomyces cerevisiae and S. carlsbergensis

Genetics. 1999 Jul;152(3):943-52. doi: 10.1093/genetics/152.3.943.

Abstract

ARS elements of Saccharomyces cerevisiae are the cis-acting sequences required for the initiation of chromosomal DNA replication. Comparisons of the DNA sequences of unrelated ARS elements from different regions of the genome have revealed no significant DNA sequence conservation. We have compared the sequences of seven pairs of homologous ARS elements from two Saccharomyces species, S. cerevisiae and S. carlsbergensis. In all but one case, the ARS308-ARS308(carl) pair, significant blocks of homology were detected. In the cases of ARS305, ARS307, and ARS309, previously identified functional elements were found to be conserved in their S. carlsbergensis homologs. Mutation of the conserved sequences in the S. carlsbergensis ARS elements revealed that the homologous sequences are required for function. These observations suggested that the sequences important for ARS function would be conserved in other ARS elements. Sequence comparisons aided in the identification of the essential matches to the ARS consensus sequence (ACS) of ARS304, ARS306, and ARS310(carl), though not of ARS310.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Amino Acid Sequence
  • Base Sequence
  • DNA-Binding Proteins / genetics*
  • Models, Genetic
  • Molecular Sequence Data
  • Mutagenesis
  • Saccharomyces / genetics*
  • Saccharomyces cerevisiae / genetics*
  • Sequence Homology, Amino Acid
  • Sequence Homology, Nucleic Acid
  • Transcription Factors / genetics*

Substances

  • DNA-Binding Proteins
  • Transcription Factors

Associated data

  • GENBANK/AF087949
  • GENBANK/AF087950
  • GENBANK/AF087951
  • GENBANK/AF087952
  • GENBANK/AF087953
  • GENBANK/AF087954
  • GENBANK/AF087955