The genes encoding gonadal and nongonadal forms of 3[beta]-hydroxysteroid dehydrogenase/[Delta][sup 5]-[Delta][sup 4] isomerase are closely linked on mouse chromosome 3

Journal Article · Thu Apr 01 00:00:00 EST 1993 · Genomics; (United States)

DOI:https://doi.org/10.1006/geno.1993.1162· OSTI ID:6082681

Bain, P A; Meisler, M H; Payne, A H ^[1]; Taylor, B A ^[2]

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1. Univ. of Michigan, Ann Arbor (United States)
2. Jackson Lab., Bar Harbor, ME (United States)

The biosynthesis of steroid hormones in the gonads and adrenal glands requires the activities of the enzyme 3[beta]-hydroxysteriod dehydrogenanse/isomerase (3[beta]HSD) which catalyzes the NAD[sup +]-dependant dehydrogenation and subsequent [Delta][sup 5] [r arrow] [Delta][sup 4] isomerization of[Delta][sup 5]-3[beta]-hydroxysteriods to [Delta][sup 4]-3-ketosteroids. The mouse expresses four isoforms of 3[beta]HSD. 3[beta]HSD I is expressed in gonads and adrenal glands and appears to be the major steroidogenic form, 3[beta]HSDs II and III are expressed in both liver and kidneys, and 3[beta]HSD IV has been detected only in kidneys. To determine the genetic relationship between the 3[beta]HSD isoforms, the authors have mapped the chromosomal locations of the four genes by linkage analysis using gene-specific process derived from the 3[prime] untranslated regions of 3 [beta]HSD cDNA clones. The four 3[beta]HSD structural genes (Hsd3b) are closely linked within a segment of chromosome 3 that is conserved on human chromosome 1. The order of markers on Chr 3 surrounding Hsd3b is: centromere-Gba-(4.4 [+-] 2.2)-Hsd3b-(3.3 [+-] 1.9)-Tshb-(6.7 [+-] 2.7)-Amy-1. 28 refs., 5 figs.

• OSTI ID: 6082681
• Journal Information: Genomics; (United States), Vol. 16:1; ISSN 0888-7543
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
ISOMERASES
GENETIC MAPPING
OXIDOREDUCTASES
STEROIDS
DEHYDROGENATION
ISOMERIZATION
ADRENAL GLANDS
CHROMOSOMES
GONADS
ISOENZYMES
KIDNEYS
LIVER
MICE
ANIMALS
BODY
CHEMICAL REACTIONS
DIGESTIVE SYSTEM
ENDOCRINE GLANDS
ENZYMES
GLANDS
MAMMALS
MAPPING
ORGANIC COMPOUNDS
ORGANS
PROTEINS
RODENTS
VERTEBRATES
550400* - Genetics