Estructura de subunidad: Binds laminin, and possibly also collagen type IV. Binds to the protective antigen (PA) of Bacillus anthracis in a divalent cation-dependent manner, with the following preference: calcium > manganese > magnesium > zinc. Binding of PA leads to heptamerization of the receptor-PA complex.
Dominio: Binding to PA seems to be effected through the VWA domain.
Localización subcelular: Isoform 1: Cell membrane; Single-pass type I membrane protein. Note=Expressed at the cell surface.
Isoform 2: Endoplasmic reticulum membrane; Single-pass type I membrane protein. Note=Expressed predominantly within the endoplasmic reticulum and not at the plasma membrane.
Isoform 3: Secreted.
Especificidad del tejido: Expressed in prostate, thymus, ovary, testis, pancreas, colon, heart, kidney, lung, liver, peripheral blood leukocytes, placenta, skeletal muscle, small intestine and spleen.
Implicación en la enfermedad: Hyaline fibromatosis syndrome (HFS) [MIM:228600]: An autosomal recessive syndrome characterized by abnormal growth of hyalinized fibrous tissue usually affecting subcutaneous regions on the scalp, ears, neck, face, hands, and feet. The lesions appear as pearly papules or fleshy nodules. Additional features include gingival hypertrophy, progressive joint contractures resulting in severe limitation of mobility, osteopenia, and osteoporosis. Disease severity is variable. Some individuals manifest symptoms in infancy and have additional visceral or systemic involvement. Hyaline deposits in multiple organs, recurrent infections and intractable diarrhea often lead to early death. Surviving children may suffer from severely reduced mobility due to joint contractures. Other patients have later onset of a milder disorder affecting only the face and digits. Note=The disease is caused by mutations affecting the gene represented in this entry.
Similitud de la secuencia: Belongs to the ATR family.
Contains 1 VWFA domain.
General information above from UniProt