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  3. Alpha-crystallin A chain/CRYAA Protein, Human (His)

Alpha-crystallin A chain/CRYAA Protein, Human (His)

Cat. No.: HY-P7872
Handling Instructions

Alpha-crystallin A chain/CRYAA Protein, Human (His) is a recombinant Alpha-crystallin A chain protein with a His tag. Alpha-crystallin A chain/CRYAA is a small heat shock protein and molecular chaperone that prevents nonspecific aggregation of denaturing proteins. Several point mutations in the alphaA-crystallin gene cause congenital human cataracts by unknown mechanisms[1].

For research use only. We do not sell to patients.

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Alpha-crystallin A chain/CRYAA Protein, Human (His) Related Classifications

  • Technical Parameters

  • Properties

  • Documentation




E. coli


P02489 (M1-S173)

Gene ID


rHuAlpha-crystallin A chain/CRYAA, His; Alpha-Crystallin A Chain; Heat Shock Protein Beta-4; HspB4; Alpha-Crystallin A Chain; Short Form; CRYAA; CRYA1; HSPB4
AA Sequence


Molecular Weight

Approximately 20.0 kDa


Greater than 90% as determined by reducing SDS-PAGE

Biological Activity
Data is not available.

Lyophilized powder.


Lyophilized from a 0.2 μm filtered solution of PBS, 2 mM EDTA, pH 8.0.

Endotoxin Level

<1 EU/μg, determined by LAL method.


It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O.

Storage & Stability

Stored at -20°C. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer. It is recommended to freeze aliquots at -20°C or -80°C for extended storage.


Room temperature in continental US; may vary elsewhere.


Alpha-crystallin A chain/CRYAA Protein is a member of the small heat shock protein family that includes 10 proteins in humans characterized by a conserved-crystallin domain of ~90 amino acids in their C-terminal region. Point mutations in small heat shock protein genes are associated with pathological conditions such as cataracts and desmin-related myopathy[1].

  • Reconstitution Calculator

  • Dilution Calculator

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

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Alpha-crystallin A chain/CRYAA Protein, Human (His)
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