Publication Date:
1984-11-23
Description:
The regulation of expression of the family of MHC (major histocompatibility complex) class I genes is complex. Sequence analysis has revealed that class I genes from the H-2D subregion of the MHC (which includes the D and L genes) differ from the class I gene from the H-2K subregion (the K gene) by the insertion of a type 2 Alu-like repetitive element (the murine B2 sequence) within the 3' noncoding region of the D and L genes. The consequence of this insertion in the D and L genes is the introduction of a novel polyadenylation signal, which is preferentially used over the more distal signal, the analog of that found in the K gene. The insertion of the type 2 Alu-like sequence results in a change in the preferred site for endonucleolytic cleavage which is necessary for generating a correct 3' terminus for polyadenylation. The data demonstrate that the type 2 Alu-like sequence has a function; the data also suggest a possible regulatory role of this sequence in the expression of class I genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kress, M -- Barra, Y -- Seidman, J G -- Khoury, G -- Jay, G -- AI 19148/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1984 Nov 23;226(4677):974-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6095445" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Chromosome Deletion
;
*Cloning, Molecular
;
DNA/*metabolism
;
DNA Restriction Enzymes
;
*DNA Transposable Elements
;
Genes, MHC Class II
;
Genetic Linkage
;
*Major Histocompatibility Complex
;
Mice
;
Protein Biosynthesis
;
Repetitive Sequences, Nucleic Acid
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
