IHH: Intercellular signal essential for a variety of patterning events during development. Binds to the patched (PTC) receptor, which functions in association with smoothened (SMO), to activate the transcription of target genes. Implicated in endochondral ossification: may regulate the balance between growth and ossification of the developing bones. Induces the expression of parathyroid hormone-related protein (PTHRP). Expressed in embryonic lung, and in adult kidney and liver. Belongs to the hedgehog family.
Chromosomal Location of Human Ortholog: 2q33-q35
Cellular Component: extracellular space; plasma membrane; proteinaceous extracellular matrix
Molecular Function: calcium ion binding; patched binding; peptidase activity
Biological Process: bone resorption; cartilage development; cell fate specification; cell maturation; cell-cell signaling; embryonic camera-type eye morphogenesis; embryonic digestive tract morphogenesis; embryonic digit morphogenesis; embryonic pattern specification; heart looping; in utero embryonic development; intein-mediated protein splicing; maternal process involved in pregnancy; multicellular organism growth; negative regulation of alpha-beta T cell differentiation; negative regulation of apoptosis; negative regulation of eye pigmentation; negative regulation of immature T cell proliferation in the thymus; negative regulation of signal transduction; negative regulation of T cell differentiation in the thymus; neuron development; osteoblast differentiation; pancreas development; patterning of blood vessels; positive regulation of alpha-beta T cell differentiation; positive regulation of chondrocyte differentiation; positive regulation of collagen biosynthetic process; positive regulation of epithelial cell proliferation; positive regulation of mesenchymal cell proliferation; positive regulation of smoothened signaling pathway; positive regulation of T cell differentiation in the thymus; positive regulation of transcription from RNA polymerase II promoter; proteoglycan metabolic process; regulation of growth; response to estradiol stimulus; skeletal development; smooth muscle development; smoothened signaling pathway; vitelline membrane formation
Disease: Acrocapitofemoral Dysplasia; Brachydactyly, Type A1
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