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YBOX1 (YB-1, YBX1)

Cat no: Y3051


Supplier: United States Biological
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Human DNA-binding proteins, dbpA and dbpB (YBOX-1), are members of a protein family containing a cold-shock domain, and are regarded as transcriptional regulators (1). The expression of HLA class II genes is regulated by a series of cis-acting elements and trans-acting factors. Several cis-acting elements have been identified and have been termed the Z box, X box, Y box, octamer, and "TATA" box. The Y box contains an inverted CCAAT box. An inverse correlation of YB-1 and HLA-DR beta chain mRNA levels suggests that YB-1 is a negative regulatory factor (2). Overexpression of YB-1 resulted in increased levels of PTP1B. Furthermore, depletion of YB-1 protein, by expression of a specific antisense construct, led to an approximately 70% decrease in expression of PTP1B, but no change in the level of its closest relative, TC-PTP. Data reveal an important role for YB-1 as a regulator of PTP1B expression, and further highlight PTP1B as a critical regulator of insulin- and cytokine-mediated signal transduction (3). Applications: Suitable for use in Western Blot, Immunoprecipitation, Flow Cytometry. Other applications not tested. Recommended Dilution: Western Blot: 1:10,000-1:20,000 Flow cytometry: 1:60 Immunoprecipitation: 1:50 Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4 degrees C for short-term only. For long-term storage, aliquot and store at -20 degrees C. Aliquots are stable for at least 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer. Manufactured incorporating RabMAb(R) technology under Epitomics US patents, No 5,675,063 and 7,429,487, owned by Abcam.
Catalogue number: Y3051
Reactivities: Human
Hosts: Rabbit
Applications: Flow Cytometry, Immunoprecipitation, Western Blot
Size: 100ul
Form: Supplied as a liquid in 50 mM Tris- Glycine, pH 7.4, 0.15 M sodium chloride, 0.01% sodium azide, 0.05% BSA and 40% Glycerol.
P type: Mab
Isotype: IgG
Purity: Supernatant
References: 1.Kudo S, et al. Eur J Biochem 231(1):72-82, 1995 2.Didier DK, et al. Proc Natl Acad Sci 85(19):7322-6, 19883.Fukada T, et al. EMBO J 22(3):479-93, 2003
Additional info: Recognizes human YBOX1.

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