XBP1 Human Gene Knockout Kit (CRISPR)

Specifications

Product Data
Format	2 gRNA vectors, 1 mBFP-Neo donor, 1 scramble control
Donor DNA	mBFP-Neo
Symbol	XBP1
Locus ID	7494
Kit Components	KN201959G1, XBP1 gRNA vector 1 in pCas-Guide CRISPR vector KN201959G2, XBP1 gRNA vector 2 in pCas-Guide CRISPR vector KN201959BN-D, donor DNA containing left and right homologous arms and mBFP-Neo functional cassette. GE100003, scramble sequence in pCas-Guide vector
Disclaimer	These products are manufactured and supplied by OriGene under license from ERS. The kit is designed based on the best knowledge of CRISPR technology. The system has been functionally validated for knocking-in the cassette downstream the native promoter. The efficiency of the knock-out varies due to the nature of the biology and the complexity of the experimental process.
Reference Data
RefSeq	NM_001079539, NM_005080
Synonyms	TREB-5; TREB5; XBP-1; XBP2
Summary	This gene encodes a transcription factor that regulates MHC class II genes by binding to a promoter element referred to as an X box. This gene product is a bZIP protein, which was also identified as a cellular transcription factor that binds to an enhancer in the promoter of the T cell leukemia virus type 1 promoter. It may increase expression of viral proteins by acting as the DNA binding partner of a viral transactivator. It has been found that upon accumulation of unfolded proteins in the endoplasmic reticulum (ER), the mRNA of this gene is processed to an active form by an unconventional splicing mechanism that is mediated by the endonuclease inositol-requiring enzyme 1 (IRE1). The resulting loss of 26 nt from the spliced mRNA causes a frame-shift and an isoform XBP1(S), which is the functionally active transcription factor. The isoform encoded by the unspliced mRNA, XBP1(U), is constitutively expressed, and thought to function as a negative feedback regulator of XBP1(S), which shuts off transcription of target genes during the recovery phase of ER stress. A pseudogene of XBP1 has been identified and localized to chromosome 5. [provided by RefSeq, Jul 2008]

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