This is the C-terminal region of a family of FAM69 proteins from Metazoa and Viridiplantae that are active protein-kinases. The family members have a short transmembrane helix close to the N-terminus, and thereafter are highly enriched with cysteines. FAM69 proteins are localised to the endoplasmic reticulum. Many members also have a short EF-hand, calcium-binding, domain just upstream of the kinase domain. The exact function of the more N-terminal family is uncertain.

1: Cloning and expression of the mouse PIP49 (Pancreatitis Induced Protein 49) mRNA which encodes a new putative transmembrane protein activated in the pancreas with acute pancreatitis. Samir AA, Ropolo A, Grasso D, Tomasini R, Dagorn JC, Dusetti N, Iovanna JL, Vaccaro MI; Mol Cell Biol Res Commun. 2000;4:188-193. PMID:11281735

2: Characterisation of the FAM69 family of cysteine-rich endoplasmic reticulum proteins. Tennant-Eyles AJ, Moffitt H, Whitehouse CA, Roberts RG; Biochem Biophys Res Commun. 2011;406:471-477. PMID:21334309