TEL04R-XR Summary Help

Systematic Name TEL04R-XR
Feature Type X_element_combinatorial_repeats
Description Telomeric X element combinatorial repeat on the right arm of Chr IV; spans 280 bp and contains repeats of the D, C, B and A types, Tbf1p binding sites, and ORF YDR544C; formerly called SubTelomeric Repeats (1, 2 and see Summary Paragraph)
Chromosomal Location
ChrIV:1525090 to 1525370 | ORF Map | GBrowse
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sequence information
ChrIV:1525090 to 1525370 | ORF Map | GBrowse
This feature is contained within: TEL04R
SGD ORF map
Last Update Coordinates: 2011-02-03 | Sequence: 2003-09-09
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S288C vs. other species
Resources
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Primary SGDIDS000028951
SUMMARY PARAGRAPH for TEL04R-XR

TEL04R-XR, the X element combinatorial repeat region on the right arm of chromosome IV, spans 280 bp and contains repeats of the D, C, B and A types, Tbf1p binding sites, and dubious ORF YDR544C.

Formerly known as subtelomeric repeats or STRs, X element combinatorial repeats are generally between 250 and 300 bp long and are located between the X element core sequence and the telomeric end (1). X element combinatorial repeats are usually present as a combination of one or more of several types of smaller elements designated D, C, B, or A, with D types being most proximal to the centromere, followed by C types and so on (2). Most X element combinatorial repeat regions contain Tbf1p binding sites, and possible functions include a role in telomerase-independent telomere maintenance via recombination or as a barrier against transcriptional silencing (2).

Other features of TEL04R, the right telomeric region of chromosome IV, include an X element core sequence TEL04R-XC, a short stretch of telomeric repeats TEL04R-TR, and a long Y' (Y'-L) element TEL04R-YP.

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: 2003-11-07 Contact SGD

References cited on this page View Complete Literature Guide for TEL04R-XR
1) Louis EJ  (1995) The chromosome ends of Saccharomyces cerevisiae. Yeast 11(16):1553-73
2) Louis EJ, et al.  (1994) The chromosome end in yeast: its mosaic nature and influence on recombinational dynamics. Genetics 136(3):789-802