The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
1/1000 - 1/4000.
1/100 - 1/400.
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.
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 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.
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - alpha A + alpha B Crystallin antibody (ab63998)
Ab63998 (1:2000) staining of human brain tissue showing aß crystallin accumulation in Rosenthal fibres. Secondary antibody biotinylated Goat anti-rabbit (1/2000). (A) Shows the early stages of aß crystallin accumulation in astrocytes, (B) astrocyte begins to hypertrophy with aß crystallin accumulation, (C) the astrocyte begins to further hypertrophy and cell structure is lost.