PMID: 8954773Nov 15, 1996Paper

A novel gene, G7e, resembling a viral envelope gene, is located at the recombinational hot spot in the class III region of the mouse MHC

Genomics
M SnoekH van Vugt

Abstract

DNA sequence analysis of a segment of 15 kb, situated between G7b and G7a and present in the mouse but absent in human, revealed about 11 kb of DNA harboring a large number of repetitive sequences and 4 kb harboring a novel gene, G7e. This gene is transcribed in lymphoid tissues, having a 3-kb mRNA. The cDNA sequence of G7e shows stretches of nucleotide homology with murine leukemia virus (MuLV) envelope genes, and the predicted protein encompasses viral envelope motifs. The finding of a gene resembling MuLV envelope genes, flanked by a long terminal repeat and gag- and pol-like sequences, leads to the assumption that G7b and G7a in the mouse were separated through the insertion of a provirus, an event that might have taken place even before speciation of rat and mouse. The 15-kb interval forms a part of a 50-kb region, between Hsp70.3 and G7, where recombination preferentially takes place. Several disease susceptibility genes have been mapped to this same interval. The position of G7e in or in the vicinity of a recombinational hot spot might not be coincidental. The presence of adjacent putative recombination regulatory sequences is suggestive for the location of the crossover sites of recombination in this interval.

Citations

Aug 12, 2000·European Journal of Immunogenetics : Official Journal of the British Society for Histocompatibility and Immunogenetics·V B MatthewsP Price
Jan 14, 2005·Molecular Biology of the Cell·Yair KliegerGiora Simchen
Feb 6, 2020·Developmental Dynamics : an Official Publication of the American Association of Anatomists·Elisabeth A Rutledge, Andrew P McMahon

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