Search Thermo Fisher Scientific
Search Thermo Fisher Scientific
Immunogen sequence: GAGPVVTPPE HLPMDSGGID SSDSESDILL GILDNLDPVM FFKCPSPEPA SLEELPEVYP EGPSSLPASL SLSVGTSSAK LEAINELIRF DHIYTKPLVL EIPSETESQA NVVVKIEEAP LSPSENDHPE FIVSVKEEPV EDDLVPELGI SNLLSSSHCP KPSSCLLDAY SDCGYGGSLS PFSDMSSLLG VNHSWEDTFA NELFPQLISV
X-box binding protein 1, spliced form (XBP1S), is a critical transcription factor involved in the unfolded protein response (UPR). Located on chromosome 22q12, XBP1S is derived from the unspliced XBP1 mRNA through a unique splicing event mediated by the endoribonuclease IRE1 alpha under endoplasmic reticulum (ER) stress conditions. Structurally, XBP1S belongs to the cAMP-response element-binding (CREB)/activating transcription factor (ATF) family and contains a basic-region leucine zipper (bZIP) domain that enables its function as a transcription factor. Functionally, XBP1S migrates to the nucleus where it regulates a broad range of genes involved in ER-associated degradation (ERAD), lipid biosynthesis, and molecular chaperones, aimed at restoring homeostasis and decreasing ER stress. Additionally, the IRE1 alpha-XBP1S signaling pathway has been implicated in cancer cell proliferation and various diseases characterized by misfolded protein accumulation.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: Hepatocarcinogenesis-related transcription factor; HTF; Tax-responsive element-binding protein 5; tax-responsive element-binding protein 5 homolog; TREB-5; X-box-binding protein 1; XBP-1
Gene Aliases: D11Ertd39e; HTF; TREB-5; TREB5; XBP-1; XBP1; XBP2
UniProt ID: (Human) P17861, (Rat) Q9R1S4, (Mouse) O35426
Entrez Gene ID: (Human) 7494, (Rat) 289754, (Mouse) 22433
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
Learn moreGet expert recommendations for common problems or connect directly with an on staff expert for technical assistance related to applications, equipment and general product use.
Contact tech support