Abstract
The expression of HLA class II genes is regulated by a series of cis-acting elements and trans-acting factors. Several cis-acting elements have been identified and have been termed the Z box, X box, Y box, octamer, and "TATA" box. The Y box contains an inverted CCAAT box. By probing a phage lambda gt11 library with double-stranded oligonucleotides, we have directly isolated a cDNA encoding a Y box-binding protein designated YB-1. YB-1 binding has an absolute requirement for the CCAAT box and relative specificity for the Y box. It has a Mr of 35,414, contains 18% basic residues, and contains putative nuclear localization signals. An inverse correlation of YB-1 and HLA-DR beta chain mRNA levels suggests that YB-1 is a negative regulatory factor.
Dates
Type | When |
---|---|
Created | 19 years, 2 months ago (May 31, 2006, 6:43 a.m.) |
Deposited | 3 years, 4 months ago (April 13, 2022, 12:49 p.m.) |
Indexed | 1 month, 3 weeks ago (July 1, 2025, 9:07 a.m.) |
Issued | 36 years, 10 months ago (Oct. 1, 1988) |
Published | 36 years, 10 months ago (Oct. 1, 1988) |
Published Online | 36 years, 10 months ago (Oct. 1, 1988) |
Published Print | 36 years, 10 months ago (Oct. 1, 1988) |
@article{Didier_1988, title={Characterization of the cDNA encoding a protein binding to the major histocompatibility complex class II Y box.}, volume={85}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.85.19.7322}, DOI={10.1073/pnas.85.19.7322}, number={19}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Didier, D K and Schiffenbauer, J and Woulfe, S L and Zacheis, M and Schwartz, B D}, year={1988}, month=oct, pages={7322–7326} }