Recombinant Human alpha B Crystallin Chain/CRYAB (C-6His)

Cat.No.: C118

Recombinant Human CRYAB (C-6His)
Description
Recombinant Human Crystalline alpha -B chain is produced by our E.coli expression system and the target gene encoding Met1-Lys175 is expressed with a 6His tag at the C-terminus.
Accession #:P02511
Known as:Alpha-Crystallin B Chain; Alpha(B)-Crystallin; Heat Shock Protein Beta-5; HspB5; Renal Carcinoma Antigen NY-REN-27; Rosenthal Fiber Component; CRYAB; CRYA2
Formulation
Lyophilized from a 0.2 μm filtered solution of PBS, pH7.4.
Quality Control
Purity:Greater than 95% as determined by reducing SDS-PAGE.
Endotoxin:Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test.
Reconstitution
Always centrifuge tubes before opening. Do not mix by vortex or pipetting.
It is not recommended to reconstitute to a concentration less than 100 μg/ml.
Dissolve the lyophilized protein in ddH2O.
Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Storage
Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks.
Reconstituted protein solution can be stored at 4-7°C for 2-7 days.
Aliquots of reconstituted samples are stable at < -20°C for 3 months.
Background
α Crystallin B Chain (CRYAB) is a cytoplasmic protein that belongs to the small heat shock protein (HSP20) family. Alpha crystallins are composed of two gene products: alpha-A and alpha-B, for acidic and basic, respectively. Alpha crystallins can be induced by heat shock and are members of the small heat shock protein (sHSP also known as the HSP20) family. Alpha crystallins acts as molecular chaperones and hold them in in large soluble aggregates. CRYAB is expressed widely in many tissues and organs. It may contribute to the transparency and refractive index of the lens. The deficiency of CRYAB is the cause of myopathy myofibrillar type 2 (MFM2) and cataract posterior polar type 2 (CTPP2).

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