Mouse Anti-Crystallin, alpha B (alpha B Crystallin Protein, Alpha(B) Crystallin, Alpha Crystallin B Chain, CRYAB, Crystallin alpha 2, CRYA2, CTPP2, Heat Shock 20kD Like Protein, Heat Shock Protein beta 5, HSPB5, NY-REN 27 Antigen, Renal Carcinoma Antigen NY-REN-27, Rosenthal Fiber Component) (Azide Free) (MaxLight 550)
AACRYA, Crystallin alpha Polypeptide 2
MaxLight™550 is a new Yellow-Green photostable dye conjugate comparable to Alexa Fluor™546, 555, DyLight™549 , Cy3™, TRITC and offers better labeling efficiency, brighter imaging and increased immunodetection. Absorbance (550nm); Emission (575nm); Extinction Coefficient 150,000.
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.
Applications
Suitable for use in FLISA and Western Blot. Other applications not tested.
Recommended Dilutions
Western Blot: 1:500-1:1000 FLISA: 1ug/ml-3ng/ml Optimal dilutions to be determined by the researcher.
Hybridoma
Sp2/0 myeloma cells with spleen cells from Balb/c mice.
Storage and Stability
Store product at 4°C in the dark. DO NOT FREEZE! Stable at 4°C for 12 months after receipt as an undiluted liquid. Dilute required amount only prior to immediate use. Further dilutions can be made in assay buffer. Caution: MaxLight™550 conjugates are sensitive to light. For maximum recovery of product, centrifuge the original vial prior to removing the cap.
Note: Applications are based on unconjugated antibody.
Immunogen
Recombinant protein corresponding to a portion of amino acids within aa1-176 of human CRYAB.
Form
Supplied as a liquid in PBS, pH 7.2. No preservative added. Labeled with MaxLight™550.
Purity
Purified by Protein A affinity chromatography.
Specificity
Recognizes human alpha B crystallin.
