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. [provided by RefSeq, Jul 2008].

alpha B Crystallin (phospho S59); alpha B Crystallin (phospho Ser59); p-alpha B Crystallin (S59); p-alpha B Crystallin (Ser59); AACRYA; Alpha B crystallin; Alpha crystallin B chain; Alpha crystallin B chain; Alpha(B) crystallin; Alpha(B)-crystallin; Alpha-crystallin B chain; CRYA2; CRYAB; CRYAB_HUMAN; Crystallin alpha B; Crystallin alpha polypeptide 2; CTPP 2; CTPP2; Heat shock 20 kD like protein; Heat shock protein beta 5; Heat shock protein beta-5; HSPB5; NY REN 27 antigen; Renal carcinoma antigen NY REN 27; Renal carcinoma antigen NY-REN-27; Rosenthal fiber component.

Mouse,Human,Rat,Dog,Pig,Cow,Horse,Rabbit,Sheep,GuineaPig,Hamster

IHC,IF,ICC

IHC 1:100-500
IF 1:100-500
ICC 1:100-1:400

20kD

1410

P02511

https://www.uniprot.org/uniprotkb/P02511

Cytoplasm. Nucleus. Note=Translocates to the nucleus during heat shock and resides in sub-nuclear structures known as SC35 speckles or nuclear splicing speckles.

Lens as well as other tissues.

KLH conjugated synthesised phosphopeptide derived from human alpha B Crystallin around the phosphorylation site of Ser59

Rabbit

Polyclonal

IgG

affinity purified by Protein A

Liquid

0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol.

Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles.