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- Title
A transcription map of the minimally deleted region from 13q14 in B-cell chronic lymphocytic leukemia as defined by large scale sequencing of the 650 kb critical region.
- Authors
Kitamura, Eiko; Su, Guanfang; Sossey-Alaoui, Khalid; Malaj, Eda; Lewis, Jennifer; Pan, HuaQin; Hawthorn, Lesleyann; Roe, Bruce; Cowell, John K
- Abstract
Extensive analysis of tumors has demonstrated homozygous and heterozygous deletions in chromosome region 13q14.3 in B-cell chronic lymphocytic leukemia (B-CLL), suggesting the site of a tumor suppressor gene. Since previous searches for this gene have not yielded any viable candidates, we now present the sequence of the BACs which span the minimally deleted approximately 650 kb region between markers D13S319 and D13S25. This sequence has allowed us to create the definitive transcription map for the region which reveals 93 ESTs and 12 Unigene clusters in this region. Using gene prediction programs, a further 19 potential genes are also identified. The genes show an asymmetrical distribution throughout the region with most of them clustering at the extreme ends. This sequencing effort provides for the definitive structure of the B-CLL deletion region and the identification of the vast majority of the potential candidate genes. Of all the genes identified, only three have homologies to known genes: two L1 repeat genes and rabbit epididymal protein 52. This 13q14.3 sequence provides the final substrate from which to characterize the B-CLL tumor suppressor gene. Oncogene (2000) 19, 5772–5780.
- Subjects
CHRONIC lymphocytic leukemia; AMINO acid sequence; GENETIC transcription
- Publication
Oncogene, 2000, Vol 19, Issue 50, p5772
- ISSN
0950-9232
- Publication type
Article
- DOI
10.1038/sj.onc.1203978