Recombinant Human Islet cell autoantigen 1 (ICA1)

Uniprot Id

Q05084

Target Species

Human

Target Name

ICA1

Target Full Name

Islet cell autoantigen 1

Target Function

May play a role in neurotransmitter secretion.

Target Subcellular Location

Cytoplasm, cytosol. Golgi apparatus membrane; Peripheral membrane protein. Cytoplasmic vesicle, secretory vesicle membrane; Peripheral membrane protein. Cytoplasmic vesicle, secretory vesicle, synaptic vesicle membrane; Peripheral membrane protein. Note=Predominantly cytosolic. Also exists as a membrane-bound form which has been found associated with synaptic vesicles and also with the Golgi complex and immature secretory granules.

Target Tissue Specificity

Expressed abundantly in pancreas, heart and brain with low levels of expression in lung, kidney, liver and thyroid.

Target Research Area

Neuroscience

Target Synonyms

69 kDa islet cell autoantigen; Diabetes mellitus type I autoantigen; ICA 1; Ica1; ICA69; ICA69_HUMAN; ICAp69; Islet cell autoantigen 1 (69kD); Islet cell autoantigen 1 69kDa; Islet cell autoantigen 1; Islet cell autoantigen 1 isoform; Islet cell autoantigen p69; OTTHUMP00000200933; OTTHUMP00000200934; OTTHUMP00000200941; OTTHUMP00000200993; p69

Target Background

This gene encodes a protein with an arfaptin homology domain that is found both in the cytosol and as membrane-bound form on the Golgi complex and immature secretory granules. This protein is believed to be an autoantigen in insulin-dependent diabetes mellitus and primary Sjogren's syndrome. Several transcript variants encoding two different isoforms have been found for this gene.