The genes for MHC class II regulatory factors RFX1 and RFX2 are located on the short arm of chromosome 19.

Abstract:

:RFX1 is a transacting DNA-binding regulatory factor involved in the control of MHC class II gene expression. RFX2 is a structurally very similar protein with identical DNA binding features. A member of the family of RFX factors is affected in an autosomal recessive disease, MHC class II deficient combined immunodeficiency (CID), caused by a defect in a trans-acting regulatory factor controlling MHC class II gene expression. In situ hybridization with 3H-labeled RFX1 cDNA has allowed us to identify two distinct targets on the short arm of chromosome 19 (19p13.1 and 19p13.2-p13.3). With the use of biotinylated genomic cosmid clones specific for RFX1 and RFX2, respectively, it was then possible to localize RFX1 at 19p13.1 and RFX2 at 19p13.2-p13.3. These two regulatory genes are thus assigned to a region of high gene density and RFX1 is close to another DNA-binding factor, LYL1.

journal_name

Genomics

journal_title

Genomics

authors

Pugliatti L,Derré J,Berger R,Ucla C,Reith W,Mach B

doi

10.1016/0888-7543(92)90052-t

subject

Has Abstract

pub_date

1992-08-01 00:00:00

pages

1307-10

issue

4

eissn

0888-7543

issn

1089-8646

journal_volume

13

pub_type

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