Immunoglobulin enhancer and promoter motifs 5' of the B29 B-cell-specific gene.
- 1 October 1989
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 86 (19) , 7341-7345
- https://doi.org/10.1073/pnas.86.19.7341
Abstract
B29 is a B-cell-specific member of the immunoglobulin gene superfamily that is expressed throughout B-cell development begininning with the earliest precursor B cells undergoing immunoglobulin heavy-chain gene segment rearrangements. We have analyzed the region upstream of the B29 gene to identify DNA sequences involved in transcriptional regulation of this gene. The B29 gene lacks a TATA box and transcription is initiated at multiple sites. The B29 gene sequence 5'' of these transcription start sites contains six promoter and enhancer motifs known to control immunoglobulin gene transcription. The most notable is a perfect octamer (5''-ATTTGCAT-3''), which binds the Oct-2 B-cell-specific transcription factor and thereby can account for the tissue-specific expression of this gene.Keywords
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