ATF6B Antibody – Rabbit Polyclonal

The protein encoded by this gene is a transcription factor in the unfolded protein response (UPR) pathway during ER stress. Either as a homodimer or as a heterodimer with ATF6-alpha, the encoded protein binds to the ER stress response element, interacting with nuclear transcription factor Y to activate UPR target genes. The protein is normally found in the membrane of the endoplasmic reticulum; however, under ER stress, the N-terminal cytoplasmic domain is cleaved from the rest of the protein and translocates to the nucleus. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2008]

ATF6B: Transcriptional factor that acts in the unfolded protein response (UPR) pathway by activating UPR target genes induced during ER stress. Binds DNA on the 5'-CCAC[GA]-3' half of the ER stress response element (ERSE) (5'-CCAATN(9)CCAC[GA]-3') when NF-Y is bound to ERSE. Belongs to the bZIP family. ATF subfamily. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Transcription factor; Membrane protein, integral

Chromosomal Location of Human Ortholog: 6p21.3

Cellular Component: Golgi apparatus; endoplasmic reticulum membrane; integral to endoplasmic reticulum membrane; intracellular; nucleus

Molecular Function: protein binding; sequence-specific DNA binding; transcription factor activity

Biological Process: transcription, DNA-dependent; unfolded protein response; signal transduction