Monoclonal Anti-μ-Calpain (Domain III) antibody produced in mouse

MFCD01322347

NA.41

Calpain-1 catalytic subunit is a protein encoded by the CAPN1 gene in humans. Calpains are calcium dependent proteases constituting a family of proteins. They share a homologous cysteine-protease domain and an E-F hand Ca²⁺-binding domain. The calpain system consists of two ubiquitous forms of calpain (m-calpain and μ-calpain), a tissue specific calpain (n-calpain) and a calpain inhibitory protein (calpastatin).

Epitope mapping studies indicate the epitope is between amino acids 465-520 (domain III) of human μ-calpain. The antibody reacts specifically with μ-calpain. It does not cross-react with m-calpain, n-calpain, calmodulin or calpastatin. It is not recommended for immunoprecipitation. By immunoblotting, reactivity is observed with human platelets and erythrocytes, bovine platelets, heart and skeletal muscle and with rat myoblasts, kidney, liver and spleen. By immunofluorescence on pig LLC-PK1 cells, diffuse cytoplasmic staining is observed.

μ-calpain from bovine skeletal muscle.

Monoclonal Anti-μ-Calpain (Domain III) antibody produced in mouse is suitable for indirect immunofluorescence at a dilution of 1:100 and western blotting at a dilution of 1:2,000.

Calpain is involved in calmodulin-independent pathway for the activation of calcineurin. Endogenous calpain I forms active calcineurin in the human heart by proteolysis of calcineurin A, which may lead to pathogenesis of myocardial disease. μ-calpain, on overexpression, may have relationship with intractable epilepsy as well as the clinicopathological characteristics. The activity of this protein is elevated in skeletal muscle from gastric cancer patients.

Solution in phosphate buffered saline and contains 0.05% sodium azide.

200

mouse

unconjugated

ascites fluid

primary antibodies

9A4H8D3, monoclonal

buffered aqueous solution

antigen 80 kDa

rat, pig, human, bovine

indirect immunofluorescence: 1:100
western blot: 1:2,000

IgG1

P07384

dry ice

−20℃

human ... CAPN1(823)
rat ... Capn1(29153)

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