Rearrangement of 21-hydroxylase genes in disease-associated MHC supratypes Journal Article


Authors: Garlepp, M. J.; Wilton, A. N.; Dawkins, R. L.; White, P. C.
Article Title: Rearrangement of 21-hydroxylase genes in disease-associated MHC supratypes
Abstract: Human cDNA probes for 21-hydroxylase (21-OH) and for complement component C4 are used on restriction digests of the members of several families with interesting supratypes. The presence of two Taq I fragments of 3.7 kb and 3.2 kb in size with a 21-OH probe is confirmed in most individuals who show no evidence of C4 deletions or 21-OH deficiency. Most individuals also show a doublet of weakly hybridizing bands at approximately 2.5 kb, the smaller of which is part of the 21A gene. The arrangement of the 21-OH genes on disease-associated supratypes was examined, and it is shown that copies of the same supratype from unrelated individuals are usually identical. Evidence is provided for deletions of 21A on the B8, C$AQ0 C4B1, BfS, DR3 and B18, C4A3, C4BQ0, BjF1, DR3 supratypes and a duplication of 21A on the B14, C4A2, C4B1/B2, BfS supratype. Gene rearrangements may be relevant to diseases such as juvenile onset diabetes mellitus. © 1986 Springer-Verlag.
Keywords: clinical article; gene deletion; heredity; genetic predisposition to disease; alleles; dna; genetic engineering; diagnosis; gene duplication; major histocompatibility complex; genetic markers; gene structure; disease susceptibility; human; male; female; priority journal; dna restriction enzymes; support, non-u.s. gov't; steroid hydroxylases; dna probe; congenital disorder; steroid 21 monooxygenase; complement 4; steroid 21-hydroxylase; complement 4a
Journal Title: Immunogenetics
Volume: 23
Issue: 2
ISSN: 0093-7711
Publisher: Springer  
Date Published: 1986-02-01
Start Page: 100
End Page: 105
Language: English
DOI: 10.1007/bf00377968
PUBMED: 3007340
PROVIDER: scopus
DOI/URL:
Notes: Article -- Export Date: 18 August 2021 -- Source: Scopus
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