ELISA. Western Blot: XBP1 antibody can be used for detection of XBP1 at 0.5-1 μg/mL. Positive Control: XBP-1 Recombinant Protein. Immunocytochemistry: 2 μg/mL. Positive Control: HepG2 cells. Immunohistochemistry on Paraffin Sections: 10 μg/mL Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.
Restrictions
For Research Use only
Concentration
1.0 mg/mL
Buffer
PBS containing 0.02 % Sodium Azide as preservative.
Preservative
Sodium azide
Precaution of Use
This product contains sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Storage
4 °C
Storage Comment
Store the antibody undiluted at 2-8 °C. Shelf life: one year from despatch.
X box binding protein 1 (XBP-1) is a key protein in the mammalian unfolded protein response (UPR) that protects the cell against the stress of malfolded proteins in the endoplasmic reticulum (ER) (1). Upon sensing unfolded proteins, an ER transmembrane endonuclease and kinase termed IRE1p is activated and excises an intron from XBP-1 mRNA. The spliced XBP-1 mRNA results in a 371 amino acid protein (XBP-1s) which is then translocated to the nucleus where it binds to the regulatory elements of downstream genes. Together with other UPR transcription factors such as ATF6, XBP-1 stimulates the production of ER stress proteins including the ER resident protein chaperones glucose regulated protein (GRP) 78 and GRP94 (3,4).Synonyms: Tax-responsive element-binding protein 5, X-box-binding protein 1, XBP-1, XBP2