Anti-Alpha A Crystallin/CRYAA Antibody Picoband®

Alpha-crystallin A chain is a protein that in humans is encoded by the CRYAA gene. Mammalian lens crystallins are divided into alpha, beta, and gamma families. 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 (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. Two additional functions of alpha crystallins are an autokinase activity and participation in the intracellular architecture. The encoded protein has been identified as a moonlighting protein based on its ability to perform mechanistically distinct functions. 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. Defects in this gene cause autosomal dominant congenital cataract (ADCC) .

Alpha-crystallin A chain; Heat shock protein beta-4; HspB4; Alpha-crystallin A (1-172) ; Alpha-crystallin A (1-168) ; Alpha-crystallin A (1-162) ; CRYAA; CRYA1, HSPB4

E. coli-derived human Alpha A Crystallin recombinant protein (Position: M1-S173) . Human Alpha A Crystallin shares 94.8% amino acid (aa) sequence identity with both mouse and rat Alpha A Crystallin.

Cell Type Markers, Chaperones, Heat Shock Proteins, Neuroscience, Protein Trafficking, Sensory System, Signal Transduction, Tags & Cell Markers, Visual System

Contributes to the transparency and refractive index of the lens. Has chaperone-like activity, preventing aggregation of various proteins under a wide range of stress conditions. .

1. Entrez Gene: CRYAA crystallin, alpha A. 2. Derham BK, Harding JJ (1999) . Alpha-crystallin as a molecular chaperone.. Progress in retinal and eye research 18 (4) : 463–509. 3. Jaworski CJ, Piatigorsky J (1989) . A pseudo-exon in the functional human alpha A-crystallin gene.. Nature337 (6209) : 752–4.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.

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