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regulatory factor X, 5 (influences HLA class II expression)

Cat：P06894

Summary:

【Derived From】： E.coli

【Endotoxin】： Not measured

【Amino Acid】： 1-350aa

【Purity】： ≥85% by SDS-PAGE.

【Name】： RFX5

【Full Name】： regulatory factor X，5 (influences HLA class II expression)

【Uniprot】： P48382

【Gene ID】： 5993

【Mol Mass】： 38.3kDa

【Application】： Immunology research

【Purification】： NI-NTA affinity purification

【Bioactive】： N0

【Tag】： With a 6×His tag at the N/C-terminus.

【Concentration】： 1mg/ml by SDS-PAGE.

Store:

【Reconstitution】： Reconstituted protein solution can be diluted with distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles. (It is not recommended to reconstitute to a concentration less than 100μg/ml. Dissolve the lyophilized protein in distilled water.)

【Storage】： Reconstituted protein solution can be stored at 4-7℃ for 1-2 weeks， stored at < -20℃ for 1 year.

【Formulation】： Powder: Lyophilized from a 0.2 μm filtered solution of 2-8M Urea, 20mM Tris-HCl, 150mM NaCl, 1mM DTT, PH7.2-8.0.

Background:

A lack of MHC-II expression results in a severe immunodeficiency syndrome called MHC-II deficiency, or the bare lymphocyte syndrome (BLS; MIM 209920). At least 4 complementation groups have been identified in B-cell lines established from patients with BLS. The molecular defects in complementation groups B, C, and D all lead to a deficiency in RFX, a nuclear protein complex that binds to the X box of MHC-II promoters. The lack of RFX binding activity in complementation group C results from mutations in the RFX5 gene encoding the 75-kD subunit of RFX (Steimle et al., 1995). RFX5 is the fifth member of the growing family of DNA-binding proteins sharing a novel and highly characteristic DNA-binding domain called the RFX motif. Multiple alternatively spliced transcript variants have been found but the full-length natures of only two have been determined.

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