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Identification and purification of a human immunoglobulin-enhancer-binding protein (NF-. kappa. B) that activates transcription from a human immunodeficiency virus type 1 promoter in vitro

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America; (USA)

The enhancer-binding factor NF-{kappa}B, which is found only in cells that transcribe immunoglobulin light chain genes, has been purified from nuclear extracts of Namalwa cells (human Burkitt lymphoma cells) by sequence-specific DNA affinity chromatography. The purified NF-{kappa}B has been identified as a 51-kDa polypeptide by UV-crosslinking analysis. Footprint and methylation-interference analyses have shown that purified NF-{kappa}B has a binding activity specific for the {kappa} light chain enhancer sequence. The purified factor activated in vitro transcription of the human immunodeficiency virus type I promoter by binding to an upstream NF-{kappa}B-binding site.

OSTI ID:
5401544
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America; (USA), Journal Name: Proceedings of the National Academy of Sciences of the United States of America; (USA) Vol. 85:13; ISSN 0027-8424; ISSN PNASA
Country of Publication:
United States
Language:
English

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