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XBP1 encodes a transcription factor that regulates MHC class II genes by binding to a promoter element referred to as an X box. Additionally we are shipping XBP1 Antibodies (225) and XBP1 Kits (32) and many more products for this protein.
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The molecular-level exploration into the signaling mechanism was investigated for the respective role of the residues from the two important proteins from Homo sapiens ERalpha (show ESR1 Proteins) and XBP-1 (bZIP domain)) for breast tumors metastasis via proliferation. It further dealt with the analysis and examination of the changes that are caused due to the point mutation K214R in the ERalpha (show ESR1 Proteins) protein.
plasma exposure resulted in expression of unfolded protein response (UPR) proteins such as glucoserelated protein 78 (GRP78 (show HSPA5 Proteins)), protein kinase (show CDK7 Proteins) R (PKR (show PKLR Proteins))like ER kinase (PERK (show EIF2AK3 Proteins)), and inositolrequiring enzyme 1 (IRE1 (show ERN1 Proteins)). Elevated expression of spliced Xbox binding protein 1 (XBP1) and CCAAT/enhancerbinding protein homologous protein (CHOP (show DDIT3 Proteins)) further confirmed that ROS (show ROS1 Proteins) generatedby NTGP induces apoptosis through the ER stress
Data suggest that XBP1 is a major component in endocrine pancreas that is crucial for glucose homeostasis and lipid metabolism; drugs targeting XBP1 signaling and endoplasmic reticulum stress/unfolded protein response in endocrine pancreas are potential approaches for treatment of disorders of glucose metabolism.
High XBP1 expression is associated with glioma.
Overexpression of X-Box Binding Protein 1 (XBP1) Correlates to Poor Prognosis and Up-Regulation of PI3K (show PIK3CA Proteins)/mTOR (show FRAP1 Proteins) in Human Osteosarcoma
Overexpression of XBP1 is associated with breast cancer.
An RNA-intrinsic conformational change causes the intron of XBP1 mRNA to be ejected and the exons to zipper up into an extended stem, juxtaposing the RNA ends for ligation; These conformational rearrangements are important for XBP1 mRNA splicing in vivo
Our results reveal that IRE1alpha (show ERN1 Proteins)-XBP1 pathway plays an important role in tumor progression and epithelial-to-mesenchymal transition (EMT (show ITK Proteins)), and IRE1alpha (show ERN1 Proteins) could be employed as a novel prognostic marker and a promising therapeutic target for CRC (show CALR Proteins).
Silencing of IRE1 (show ERN1 Proteins) expression inhibited splicing of XBP1 resulting in an early onset of cell death. In the PERK (show EIF2AK3 Proteins)-reporter cells, authors observed that a slow rate of ATF4 (show ATF4 Proteins)-translation and late re-initiation of general translation
these findings suggest a possible mechanism underlying the RANKL (show TNFSF11 Proteins) expression induced by wear particles in fibroblasts, and downregulating ER stress and the XBP1s expression of fibroblasts
Findings indicate that PERK (show EIF2AK3 Proteins) kinase-activating transcription factor 4 (ATF4 (show ATF4 Proteins)) pathway affected the efficiency of X-box binding protein 1 (XBP1) mRNA splicing by regulating inositol-requiring enzyme 1alpha (IRE1alpha (show ERN1 Proteins)) expression.
Gene expression analysis revealed that XBP1 regulates a group of memory-related genes, highlighting BDNF (show BDNF Proteins), as a key component in memory consolidation.
XBP1s can regulate Wnt10b (show WNT10B Proteins) by a post-transcriptional mechanism through directly inducing microRNA-148a.
PKA-dependent IRE1alpha (show ERN1 Proteins)-XBP1 activation is crucial for the transcriptional induction of Ucp1 (show UCP1 Proteins) in brown adipocytes.
Data shsow that X-box binding protein 1 (XBP1) plays a critical role in controlling the oxidative stress in Leishmania amazonensis a-infected cells.
Diminished XBP1 and/or HNF4alpha (show HNF4A Proteins) in beta-cells led to impaired endoplasmic reticulum calcium homeostasis.
propose that the pathology of MCDS is underpinned by XBP1 independent UPR-induced dysregulation of C/EBP-beta (show CEBPB Proteins)-mediated chondrocyte differentiation
Data (including data from studies in knockout/transgenic mice) Xbp1 is required in mammary epithelial cells during lactation for cell proliferation (vs. apoptosis) and for development of elaborate endoplasmic reticulum (ER; without ER stress).
data indicate that hepatic XBP1 controls the adaptive response of the UPR and is critical to restoring homeostasis in the liver in response to ER stress.
analyzed XBP1 level and location to explore the effect of ER stress on oocyte maturation and developmental competency of porcine embryos in an in vitro culture system
Knock-down of XBP1 enhanced endoplasmic reticulum stress-mediated cell death in porcine embryonic fibroblasts.
Exposure of endothelial cells to VEGF (show VEGFA Proteins), high glucose, or hydrogen peroxide up-regulated the XBP1/IRE1 alpha (show ERN1 Proteins) and ATF6 (show ATF6 Proteins) arms of the unfolded protein response compared with untreated cells.
Expression of xbp1 is significantly upregulated in the liver of Cdipt (show CDIPT Proteins)-deficient zebrafish due to persistent endoplasmic reticulum stress. Cdipt (show CDIPT Proteins)-deficient zebrafish exhibits hepatic lipid accumulation.
zebrafish XBP-1 spliced form not only activates genes responsible for protein folding, transporting, glycosylation and Endoplasmic Reticulum associated degradation but also activates anti-apoptosis signal via IGF1 (show IGF1 Proteins)/Akt (show AKT1 Proteins) pathway in unfolded protein
XBP1 might function as an inhibitor of mesodermal and neural tissue formation by acting either as transcriptional activator or as repressor.
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.
X-box binding protein 1 pseudogene 1
, X-box binding protein pseudogene 1
, X-box binding protein 1
, X-box-binding protein 1
, tax-responsive element-binding protein 5
, tax-responsive element-binding protein 5 homolog
, hepatocarcinogenesis-related transcription factor
, X-box binding protein 1B