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Hum Mol Genet. 1994 Oct;3(10):1847-53.

Sequence organization of the human chromosome 2q telomere.

Author information

1
Wistar Institute, Philadelphia, PA 19104.

Abstract

The terminal 240 kb of a human 2q telomere region was cloned in two overlapping yeast artificial-chromosomes (YACs). This DNA contains a region of low-copy subtelomeric repeats (within 50 kb of the 2q telomere), a segment of DNA duplicated on distal 8p23 (100 kb from the 2q telomere), and a region of single-copy DNA (230 kb from the 2q telomere). Two CpG islands are present in the DNA segment duplicated on distal 8p23. RecA-assisted restriction endonuclease cleavage of genomic DNA samples revealed a potential 55 kb chromosome length polymorphism at the 2q telomere. This work provides telomeric closure of maps for human chromosome 2q, demonstrates a novel, subtelomere-specific DNA duplication, and will permit detailed molecular and cytological studies of this human telomere region.

PMID:
7545974
DOI:
10.1093/hmg/3.10.1847
[Indexed for MEDLINE]

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