TEL08R-YP Summary Help

Systematic Name TEL08R-YP
Feature Type Y'_element
Description Telomeric short Y' element on the right arm of Chromosome VIII; contains an ARS consensus sequence, a region of 36-bp repeats, and four ORFs (YHR218W, YHR219W, YHR218W-A, YHR219C-A) (1, 2, 3 and see Summary Paragraph)
Chromosomal Location
ChrVIII:556986 to 562456 | ORF Map | GBrowse
sequence information
ChrVIII:556986 to 562456 | ORF Map | GBrowse
This feature contains embedded feature(s): YHR218W | YHR219W | YHR219C-A | YHR218W-A
This feature is contained within: TEL08R
Last Update Coordinates: 2005-11-07 | Sequence: 2003-09-09
Subfeature details
Most Recent Updates
Coordinates Sequence
Repeat region 3432..3858 560417..560843 2005-11-07 2003-09-09
ACS 5251..5261 562236..562246 2005-11-07 2003-09-09
Retrieve sequences
Analyze Sequence
S288C only
S288C vs. other species
External Links All Associated Seq | Search all NCBI (Entrez)
Primary SGDIDS000028969

TEL08R-Yp, the short Y' (Y'-S) element on the right arm of chromosome VIII, contains an ARS consensus sequence, a region of 36-bp repeats, two uncharacterized ORFs (YHR218W, YHR219W), and two dubious ORFs (YHR218W-A, YHR219C-A).

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 TEL08R, the right telomeric region of chromosome VIII, include an X element core sequence TEL08R-XC, a region of X element combinatorial repeats TEL08R-XR, and two stretches of telomeric repeats (TEL08R-TR1, TEL08R-TR2).

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 TEL08R-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