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Nucleotide sequence and analysis of the centromeric region of yeast chromosome IX
Author(s) -
Voss H.,
Tamames J.,
Teodoru C.,
Valencia A.,
Sensen C.,
Wiemann S.,
Schwager C.,
Zimmermann J.,
Sander C.,
Ansorge W.
Publication year - 1995
Publication title -
yeast
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.923
H-Index - 102
eISSN - 1097-0061
pISSN - 0749-503X
DOI - 10.1002/yea.320110109
Subject(s) - biology , genetics , sequence (biology) , chromosome , yeast , nucleic acid sequence , centromere , sequence analysis , computational biology , gene
We have determined the nucleotide sequence of a cosmid (pIX338) containing the centromere region of yeast ( Saccharomyces cerevisiae ) chromosome IX. The complete nucleotide sequence of 33·8 kb was obtained by using an efficient directed sequencing strategy in combination with automated DNA sequencing on the A.L.F. DNA sequencer. Sequence analysis revealed the presence of 17 open reading frames (ORFs), four of them previously known yeast genes ( sly12, pan1, sts1 and prl1 ), a tRNA gene and the centromere motif. Exhaustive database searches detected sequence homologues of known function for as many as 14 of the 17 ORFs. These include a mammalian tyrosine kinase substrate; the Escherichia coli cell cycle protein MinD; the human inositol polyphosphate‐5‐phosphatase (gene OCRL) involved in Lowe's syndrome, a developmental disorder; and helicases, for which the new yeast member defines a distinct DEAD/H‐box subfamily. A surprisingly large fraction of the ORFs (at least six out of 17) in the centromeric region are apparently involved in RNA or DNA binding. The nucleotide sequence reported here has been submitted to the EMBL data library under the accession number X79743.