PMID- 3059799 OWN - NLM STAT- MEDLINE DCOM- 19890125 LR - 20190626 IS - 0002-9343 (Print) IS - 0002-9343 (Linking) VI - 85 IP - 6A DP - 1988 Dec 23 TI - Diversity and regulation of expression of human leukocyte antigen class II molecules. PG - 6-8 AB - The initiation of an immune response requires that a foreign antigen be degraded, and that one of the degradative fragments be presented in the context of a human leukocyte antigen (HLA) class II molecule to an antigen-specific helper T cell. The success of this process is maximized by the diversity of the class II molecules possessed by a given person. The expression of the HLA class II molecules is highly selective. Aberrant expression has been postulated to be responsible for autoimmune disease. The interaction of inducible tissue-specific transacting factors with cis-acting genetic elements adjacent to the coding portion of the class II genes is responsible for both normal and aberrant expression of class II molecules. The cDNA encoding one such transacting factor that binds to the cis-acting element known as the Y box has been cloned. FAU - Schwartz, B D AU - Schwartz BD AD - Howard Hughes Medical Institute Laboratories, Washington University School of Medicine, St. Louis, Missouri 63110. LA - eng GR - 18925/PHS HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PT - Review PL - United States TA - Am J Med JT - The American journal of medicine JID - 0267200 RN - 0 (HLA-D Antigens) RN - 0 (HLA-DP Antigens) RN - 0 (HLA-DQ Antigens) RN - 0 (HLA-DR Antigens) SB - IM MH - *Gene Expression Regulation MH - HLA-D Antigens/biosynthesis/*genetics MH - HLA-DP Antigens/genetics MH - HLA-DQ Antigens/genetics MH - HLA-DR Antigens/genetics MH - Humans RF - 12 EDAT- 1988/12/23 00:00 MHDA- 1988/12/23 00:01 CRDT- 1988/12/23 00:00 PHST- 1988/12/23 00:00 [pubmed] PHST- 1988/12/23 00:01 [medline] PHST- 1988/12/23 00:00 [entrez] AID - 0002-9343(88)90370-1 [pii] AID - 10.1016/0002-9343(88)90370-1 [doi] PST - ppublish SO - Am J Med. 1988 Dec 23;85(6A):6-8. doi: 10.1016/0002-9343(88)90370-1.