TEL07R-YP Summary Help

Systematic Name TEL07R-YP
Feature Type Y'_element
Description Telomeric long Y' element on the right arm of Chromosome VII; contains an ARS consensus sequence, a region of 36-bp repeats, and three ORFs (YRF1-3/YGR296W, YGR296C-A, YGR296C-B) (1, 2, 3 and see Summary Paragraph)
Chromosomal Location
ChrVII:1084347 to 1090940 | ORF Map | GBrowse
sequence information
ChrVII:1084347 to 1090940 | ORF Map | GBrowse
This feature contains embedded feature(s): YRF1-3 | YGR296C-A | YGR296C-B
This feature is contained within: TEL07R
Last Update Coordinates: 2011-02-03 | Sequence: 2003-09-09
Subfeature details
Most Recent Updates
Coordinates Sequence
Repeat region 4618..5044 1088964..1089390 2011-02-03 2003-09-09
ACS 6434..6444 1090780..1090790 2011-02-03 2003-09-09
Retrieve sequences
Analyze Sequence
S288C only
S288C vs. other species
External Links All Associated Seq | Search all NCBI (Entrez)
Primary SGDIDS000028963

TEL07R-Yp, the long Y' (Y'-L) element on the right arm of chromosome VII, contains an ARS consensus sequence, a region of 36-bp repeats, one verified ORF YRF1-3/YGR296W, and two dubious ORFs (YGR296C-A, YGR296C-B).

The Y' element is a repetitive sequence found in many but not all subtelomeric regions next to the telomeric repeats, or adjacent X element combinatorial repeats, either as a single copy or tandem repeat of two to four copies(2, 3). Two main types of Y' elements are known, Y'-L and Y'-S, and any particular array will consist of only one type, not a combination of both (1). Y' elements contain helicase-encoding ORFs which are expressed only during meiosis and in telomerase-deficient cells (1). Possible functions include rescue of telomeres when the telomeric repeats are no longer present and a role in telomere maintenance during meiosis (1).

Other features of TEL07R, the right telomeric region of chromosome VII, include an X element core sequence TEL07R-XC, and a region of X element combinatorial repeats TEL07R-XR.

Click on the following figure for more details:

telomere map

Further information can be found at the website of Dr. Ed Louis, Institute of Genetics, The University of Nottingham.

Last updated: 2003-11-18 Contact SGD

References cited on this page View Complete Literature Guide for TEL07R-YP
1) Yamada M, et al.  (1998) Y'-Help1, a DNA helicase encoded by the yeast subtelomeric Y' element, is induced in survivors defective for telomerase. J Biol Chem 273(50):33360-6
2) Louis EJ and Haber JE  (1992) The structure and evolution of subtelomeric Y' repeats in Saccharomyces cerevisiae. Genetics 131(3):559-74
3) Pryde FE, et al.  (1997) Chromosome ends: all the same under their caps. Curr Opin Genet Dev 7(6):822-8