Signals Controlling Alternative Splicing of Major Histocompatibility Complex H-2 Class I Pre-mRNA
Overview
Genetics
Affiliations
The use of alternative splice acceptor sites during the removal of intron 7 in pre-mRNA splicing produces two forms of H-2Kb protein: the predominant form, derived from a transcript that has spliced at the upstream splice acceptor site for exon 8 (long exon 8), and a Kb molecule derived from a transcript that has spliced at the downstream acceptor site for exon 8 (short exon 8). We have identified a potential lariat branch point adenosine for the upstream acceptor splice site. This adenosine is found 28 bp from the splice junction and is contained in the sequence AGTGATGG. D-region genes, which use only the downstream splice site, have the sequence AGTGGTGG. We have used in vitro mutagenesis to change this A of the H-2Kb gene to G and have made the reciprocal change in H-2Dd. Elimination of this adenosine in H-2Kb alters the pattern of pre-mRNA splicing and results in a predominance of the Kb molecules with short exon 8 encoded sequences. However, the addition of an adenosine in H-2Dd is not sufficient to direct splicing to the upstream site.
Vugmeyster Y, Glas R, Perarnau B, Lemonnier F, Eisen H, Ploegh H Proc Natl Acad Sci U S A. 1998; 95(21):12492-7.
PMID: 9770513 PMC: 22858. DOI: 10.1073/pnas.95.21.12492.
Characterization of a class Ib gene of the rat major histocompatibility complex.
Rothermel E, Heine L, Wurst W, Gunther E Immunogenetics. 1993; 38(2):82-91.
PMID: 8482583 DOI: 10.1007/BF00190895.
Handy D, Zanella M, Kanemaru A, Tavares A, Flordellis C, Gavras H Biochem J. 1995; 311 ( Pt 2):541-7.
PMID: 7487893 PMC: 1136033. DOI: 10.1042/bj3110541.
Locus-specific cDNA cloning in the class I multigene family: structure of H-2Dr and H-2Ds.
Cai Z, Pease L Immunogenetics. 1990; 32(6):456-9.
PMID: 2272667 DOI: 10.1007/BF00241641.
An intragenic recombinant class I gene: H-2Ddx.
Cai Z, Pease L Immunogenetics. 1991; 34(4):273-6.
PMID: 1916954 DOI: 10.1007/BF00215266.