Abstract
By use of Southern blot analyses and low copy number probes, the fine structure of the Q region of the mouse major histocompatibility complex was studied in more detail. With a probe recognizing the even-numbered genes Q4, Q6, and Q8, it was evident that Q4 and/or the regions flanking Q4 are polymorphic, whereas Q6 and Q8, and their flanking regions are nonpolymorphic. Perhaps the most noteworthy finding is that at least two strain haplotypes, H-2k and H-2f, possessed extensive deletions in the Q region. The most striking deletion was found in the H-2f haplotype, where the Q1 through Q9 genes appear to be missing. Because of these extensive deletions the functional importance of the Q region is questioned.
MeSH Terms
Animals
Chromosome Deletion
Cosmids
DNA/isolation & purification
DNA Restriction Enzymes
Major Histocompatibility Complex
Mice
Mice, Inbred Strains
Nucleic Acid Hybridization
Chemicals
DNA
DNA Restriction Enzymes
Authors & Affiliations
5 authors, click to expand affiliations / ORCID
O'Neill A E
Reid K
Garberi J C
Karl M
Flaherty L
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