Calpain 5 antibody - Domain III, large subunit (ab38942)

Product Name 

Calpain 5 antibody - Domain III, large subunit

Product type 

Primary antibodies

Description 

Rabbit polyclonal to Calpain 5 - Domain III, large subunit

Immunogen 

Synthetic peptide based on Domain III in the large subunit of Human Calpain 5.(Peptide available as ab41312.)

Reacts with 
(species key)

Hu, Ms, Rat

Specificity 

Ab38942 binds to Calpain 5, recognizing both latent and active Calpain 5. It also binds to the reduced and non reduced protein. The antibody does not cross react with the other calpain family members (calpain 1, calpain 2, calpain 3, ncl 2, ncl 3, etc.).

We have a range of domain specific antibodies for this target. For a full list please see all Calpain 5 antibodies

Tested applications 
(see key)

WB

Abreviews 

Customer reviews (see key)

Read about Abreviews

Application notes 
(see key)

Recommended dilutions
WB: A recommended starting concentration for Western blots is 1:1000 when using colorimetric substrates such as BCIP/NBT, and 1:5000 for chemiluminescent substrates. Higher concentrations of antibody may be needed for samples from more distantly related species. When used against the reduced protein this antibody identifies bands at 73kD, 58kD, and a series of further cleaved active forms. Dilution optimised using Chromogenic detection. Not yet tested in other applications. Optimal dilutions/concentrations should be determined by the end user.

Cellular localization 

Cytoplasmic

Research areas 

Cell Biology >> Proteolysis / Ubiquitin >> Proteolytic enzymes >> Cysteine protease >> Calpains
Signal Transduction >> Calcium Signaling >> Calpain

Relevance 

Calpain proteinases are defined currently as papain like neutral proteases that are calcium activated. Calpains 1 and 2 are composed of a large subunit, which is proteolytically active, and a small subunit (also called calpain 4), or enhancer protein, that is not proteolytically active. The other calpain proteins identified to date are not known to require a small subunit. Domains in the large subunit include the amino terminal domain I, the proteinase domain II, domain III, and the EF hand domain IV (Domain T in calpains 5 & 6).

Calpain 5, also known as the human orthologue of TRA3, a C. elegans protein involved in sex determination, is located on chromosome 11 in humans, near calpain 1. Calpain 5 is an intracellular, calcium dependent cysteine protease. Calpain 5 domain T does not have the standard calpain EF hand domain for binding calcium, making it unclear whether it is calcium regulated. It is also unclear if calpain 5 plays any role in mammalian sex determination, since the enzyme is found in colon, kidney, liver and trachea and other tissues, as well as testis.

Database links 

Raised in 

Rabbit

Clonality 

Polyclonal

Isotype 

IgG

Purity 

Immunogen affinity purified

Storage buffer 

Preservative: 0.05% Sodium Azide
Constituents: 50% Glycerol

Material safety datasheets (MSDS) for this product:
Glycerol MSDS
Sodium Azide MSDS

Form 

Liquid

Concentration 

1.000 mg/ml

Storage instructions 

Store at +4°C short term (1-2 weeks). Aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.

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