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C270

Sigma-Aldrich

Monoclonal Anti-Calpastatin antibody produced in mouse

clone 1F7E3D10, ascites fluid, buffered aqueous solution

Synonym(s):

Anti-BS-17, Anti-PLACK

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About This Item

MDL number:
UNSPSC Code:
12352203
NACRES:
NA.41

biological source

mouse

Quality Level

conjugate

unconjugated

antibody form

ascites fluid

antibody product type

primary antibodies

clone

1F7E3D10, monoclonal

form

buffered aqueous solution

species reactivity

human, rat, bovine, pig

technique(s)

indirect immunofluorescence: 1:200
western blot: 1:5,000

isotype

IgG1

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... CAST(831)
rat ... Cast(25403)

General description

Calpastatin is a protein encoded by the CAST gene in humans. Calpastatin is an endogenous inhibitor of the ubiquitous calcium dependent proteinases μ- and m-calpain. It plays a key role in many cellular physiological and pathological processes. Calpastatin level is very important for controlling calpain activity.

Specificity

Epitope mapping studies indicate the epitope is between amino acids 543-673 (domain IV) of human calpastatin. By immunoblotting, the antibody may detect bands at 150, 125, 90 and 70 kDa, which have been suggested to be proteins translated from different start sites of the calpastatin gene. It does not cross-react with calpains or calmodulin. By immunoblotting, reactivity is observed with human platelets and erythrocytes, bovine platelets, heart and skeletal muscle and in rat myoblasts, kidney, liver and spleen. By immunofluorescence on pig LLC-PK1 cells, diffuse cytoplasmic staining is observed.

Immunogen

calpastatin from bovine skeletal muscle.

Application

Monoclonal Anti-Calpastatin antibody produced in mouse is suitable for indirect immunofluorescence at a dilution of 1:200 and for western blotting at a dilution of 1:5,000.

Biochem/physiol Actions

Calpastatin availability in cytosol is controlled by Ca2+ and cyclic AMP. Prolonged calpain activation promotes degradation of calpastatin. Calpastatin is found to be overexpressed in mycoplasma-contaminated cultured cells. CAST gene is found to be involved in genetic susceptibility to Keratoconus (KC), a genetically heterogeneous corneal dystrophy. It is also found to be associated with Parkinson′s disease (PD) and single nucleotide polymorphisms (SNPs).

Physical form

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

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Lan Zhang et al.
PloS one, 8(8), e70935-e70935 (2013-08-21)
Recent studies point to an association between the late-onset sporadic Parkinson's disease (PD) and single nucleotide polymorphisms (SNPs) rs1559085 and rs27852 in Ca(2+)-dependent protease calpain inhibitor calpastatin (CAST) gene. This finding is of interest since loss of CAST activity could
H Ma et al.
Journal of biochemistry, 113(5), 591-599 (1993-05-01)
Calpain requires Ca2+ for both proteolysis of its substrates and interaction with its endogenous inhibitor, calpastatin. The mechanism of inhibition of calpain by calpastatin has remained unsolved, although Nishimura and Goll [J. Biol. Chem. 266, 11842-11850 (1991)] reported that autolyzed
Peggy Raynaud et al.
Archives of biochemistry and biophysics, 437(1), 69-77 (2005-04-12)
Calpastatin is a specific endogenous protein inhibitor of the ubiquitous calcium dependent proteinases mu- and m-calpain. The calpain-calpastatin system is involved in various physiological and pathological processes. In the present study, we determined the bovine calpastatin gene structure and demonstrated
Maryam Niapour et al.
The Journal of biological chemistry, 283(31), 21371-21381 (2008-06-12)
The c-Myc transcription factor is commonly dysregulated in cancer. c-Myc also sensitizes cells to apoptosis induced by a variety of toxic events. c-Myc turnover is rapid and mediated by the proteasome and intracellular calpains. Therefore, c-Myc accumulation could contribute to
Xiaohui Li et al.
Cornea, 32(5), 696-701 (2013-03-02)
Keratoconus (KC) is a genetically heterogeneous corneal dystrophy. Previously, we performed 2 genome-wide linkage scans in a 4-generation autosomal dominant pedigree and repeatedly mapped a KC locus to a genomic region located on chromosome 5q overlapping the gene encoding the

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