AlphaB Crystallin/CRYAB Antibody [FITC]


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Product Details

Reactivity Hu, Mu, Chicken, Guinea Pig, Primate, Porcine, Rabbit, Rat, SheepSpecies Glossary
Applications WB
Please see the vial label for concentration. If unlisted please contact technical services.

AlphaB Crystallin/CRYAB Antibody [FITC] Summary

A synthetic peptide made to an internal region of the human Crystallin AB protein (within residues 70-140). [Swiss-Prot P02511]
Predicted Species
Rat (100%), Porcine (100%), Sheep (100%), Primate (100%), Chicken (100%), Guinea Pig (100%), Rabbit (100%). Backed by our 100% Guarantee.
Immunogen affinity purified
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Packaging, Storage & Formulations

Store at 4C in the dark.
FITC (A=495, E=519)
0.05% Sodium Azide
Immunogen affinity purified


  • Western Blot 0.5-1.0 ug/ml
Application Notes
This Crystallin AB antibody is useful for Western blot analysis, where a band is seen at ~20 kDa. There is also a band of greater intensity at ~40 kDa that may be an aggregated heteromeric complex. **CryAB aggregates with homologous proteins, including CryAA and the small heat shock protein HSP28, to form large heteromeric complexes. Immunocytochemistry/Immunofluorescence was reported in scientific literature.

Reactivity Notes

Predicted to react with rat, sheep, rabbit, monkey, guinea pig, chicken, and pig based on 100% sequence homology. Immunogen sequence has 81% homology with Zebrafish.

Alternate Names for AlphaB Crystallin/CRYAB Antibody [FITC]

  • alpha B crystallin
  • alpha(B)-crystallin
  • alpha-crystallin B chain
  • CRYA2
  • CRYA2alpha crystallin B chain
  • crystallin, alpha B
  • CTPP2
  • Heat shock protein beta-5
  • heat-shock 20 kD like-protein
  • HSPB5
  • Renal carcinoma antigen NY-REN-27
  • Rosenthal fiber component


Crystallin AB (CRYAB or alpha-basic-crystallin) belongs to HSP20 family and was originally discovered as chaperone abundantly expressed in eye lens where it plays a key role in maintaining transparency and refractive index of lens. Subsequently, CRYAB was found to acts as a molecular chaperone induced by a variety of stress stimuli, conferring cytoprotection by suppressing aggregation of denatured protein. In its anti-apoptotic role, CRYAB protects cells against stress, TNF-alpha, apoptotic effectors etc. and can inhibit caspase-3/PARP alongwith preventing Bax/Bcl-2 translocation. CRYAB is a heteropolymer of three CRYAA and one CRYAB subunits, and can aggregate with homologous proteins (e.g. HSPB1) to form large complexes and interact with HSPBAP1 as well as TTN/titin. Localized in cytoplasm, during heat shock stimulus, CRYAB translocates to sub-nuclear structures known as SC35/nuclear splicing speckles. CRYAB is expressed in several other tissues such as muscle, brain, spleen, lung, kidney, skin etc and has been shown to implicate in certain diseases including cardiac myopathies, neurodegenerative diseases and malignancies including brain, breast, prostate and renal cancers. Defectsive CRYAB causes myopathy myofibrillar type 2 (MFM2), cataract posterior polar type 2 (CTPP2) and myopathy myofibrillar fatal infantile hypertonic alpha-B crystallin-related (MFMFIH-CRYAB).


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Video Protocols

WB Video Protocol

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Secondary Antibodies


Isotype Controls

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Contact Information

Product PDFs


Gene Symbol CRYAB

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