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SHP (short heterodimer partner) is a bile acid-dependent orphan NR0 Knirps-Like receptor with dimerization and ligand-binding domains but not the conventional DNA-binding domain. SHP has been shown to inhibit the transcriptional activity of other nuclear receptors, including thyroid hormone receptor, constitutive androstane receptor, and retinoic acid receptors. SHP affects hepatic cholesterol catabolism based on a two-step mechanism dependent on both coactivator competition and direct transcriptional repression by mediating the repression of CYP7A1, the rate-limiting enzyme for bile acid synthesis. Mutations in the SHP gene contribute to increased body weight, indicating a possible role of SHP in the development of early-onset diabetes (maturity-onset diabetes of the young, MODY). Loss of SHP in mice caused abnormal accumulation and increased synthesis of bile acids due to derepression of rate-limiting CYP7A1 and CYP8B1 hydroxylase enzymes in the biosynthetic pathway.
Gene Name: | nuclear receptor subfamily 0, group B, member 2 |
Family/Subfamily: | NHR , NR0 Knirps-like |
Synonyms: | NR0B2, Short heterodimer partner, SHP, Nuclear receptor SHP, Orphan nuclear receptor SHP, Small heterodimer partner, SHP1 |
Target Sequences: | NM_021969 NP_068804.1 Q15466 |
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