Butyrophilin

Butyrophilin
Identifiers
Aliases
External IDs GeneCards:
Orthologs
Species Human Mouse
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Butyrophilin is a family of proteins.

Butyrophilin (Btn) genes constitute a subgroup of at least 10 genes in the Ig superfamily identified in human, mouse, cow, goat and other species.[1]

The eponymous Btn gene (BTN1A1 in humans; Btn1a1 in mouse) is highly expressed in the secretory epithelium of the mammary gland during lactation. Other homologues are predominantly expressed in skeletal muscle and the intestine and erythroid cells. In contrast, BTN2A1 and 2 and BTN3A1, 2, and 3 are widely expressed in many tissues, suggesting that the structural domains of Btn proteins may have both universal and tissue-specific functions.

Types include:

References

  1. ↑ Sherry L. Ogg; Anne K. Weldon; Lorraine Dobbie; Andrew J. H. Smith; Ian H. Mather. "Expression of butyrophilin (Btn1a1) in lactating mammary gland is essential for the regulated secretion of milk–lipid droplets".


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