Recombinant Human CRYAB

Cat.No. : CRYAB-27293TH
Product Overview : Recombinant full length protein, corresponding to amino acids 1-175 of Human alpha B Crystallin Molecular Weight: 20,159 Da
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Description : Crystallins are separated into two classes: taxon-specific, or enzyme, and ubiquitous. The latter class constitutes the major proteins of vertebrate eye lens and maintains the transparency and refractive index of the lens. Since lens central fiber cells lose their nuclei during development, these crystallins are made and then retained throughout life, making them extremely stable proteins. Mammalian lens crystallins are divided into alpha, beta, and gamma families; beta and gamma crystallins are also considered as a superfamily. Alpha and beta families are further divided into acidic and basic groups. Seven protein regions exist in crystallins: four homologous motifs, a connecting peptide, and N- and C-terminal extensions. 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. They act as molecular chaperones although they do not renature proteins and release them in the fashion of a true chaperone; instead they hold them in large soluble aggregates. Post-translational modifications decrease the ability to chaperone. These heterogeneous aggregates consist of 30-40 subunits; the alpha-A and alpha-B subunits have a 3:1 ratio, respectively. Two additional functions of alpha crystallins are an autokinase activity and participation in the intracellular architecture. Alpha-A and alpha-B gene products are differentially expressed; alpha-A is preferentially restricted to the lens and alpha-B is expressed widely in many tissues and organs. Elevated expression of alpha-B crystallin occurs in many neurological diseases; a missense mutation cosegregated in a family with a desmin-related myopathy.
Source : E. coli
Tissue specificity : Lens as well as other tissues.
Form : Liquid
Purity : >95% by SDS-PAGE
Storage buffer : Preservative: NoneConstituents: 50mM Sodium chloride, 20mM Tris HCl, 1mM EDTA, pH 7.5
Storage : Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
Sequences of amino acids : MDIAIHHPWI RRPFFPFHSP SRLFDQFFGE HLLESDLFPT STSLSPFYLR PPSFLRAPSWFDTGLSEMRL EKDRFSVNLD VKHFSPEELK VKVLGDVIEV HGKHEERQDE HGFISREFHRKYRIPADVDP LTITSSLSSD GVLTVNGPRK QVSGPERTIP ITREEKPAVT AAPKK
Sequence Similarities : Belongs to the small heat shock protein (HSP20) family.
Gene Name : CRYAB crystallin, alpha B [ Homo sapiens ]
Official Symbol : CRYAB
Synonyms : CRYAB; crystallin, alpha B; CRYA2; alpha-crystallin B chain; HSPB5;
Gene ID : 1410
mRNA Refseq : NM_001885
Protein Refseq : NP_001876
MIM : 123590
Uniprot ID : P02511
Chromosome Location : 11q22.3-q23.1
Pathway : Protein processing in endoplasmic reticulum, organism-specific biosystem; Protein processing in endoplasmic reticulum, conserved biosystem;
Function : protein binding; protein homodimerization activity; structural constituent of eye lens; unfolded protein binding;

For Research Use Only. Not intended for any clinical use. No products from Creative BioMart may be resold, modified for resale or used to manufacture commercial products without prior written approval from Creative BioMart.

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