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Cell. 1991 Jun 28;65(7):1281-9.

Characterization of an immediate-early gene induced in adherent monocytes that encodes I kappa B-like activity.

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  • 1Lineberger Comprehensive Cancer Center, Department of Obstetrics and Gynecology, University of North Carolina, Chapel Hill 27599.

Abstract

We have cloned a group of cDNAs representing mRNAs that are rapidly induced following adherence of human monocytes. One of the induced transcripts (MAD-3) encodes a protein of 317 amino acids with one domain containing five tandem repeats of the cdc10/ankyrin motif, which is 60% similar (46% identical) to the ankyrin repeat region of the precursor of NF-kappa B/KBF1 p50. The C-terminus has a putative protein kinase C phosphorylation site. In vitro translated MAD-3 protein was found to specifically inhibit the DNA-binding activity of the p50/p65 NF-kappa B complex but not that of the p50/p50 KBF1 factor or of other DNA-binding proteins. The MAD-3 cDNA encodes an I kappa B-like protein that is likely to be involved in regulation of transcriptional responses to NF-kappa B, including adhesion-dependent pathways of monocyte activation.

PMID:
1829648
[PubMed - indexed for MEDLINE]

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