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Key Documents

C0581

Sigma-Aldrich

Monoclonal Anti-Calcineurin (β-Subunit) antibody produced in mouse

clone CN-B1, ascites fluid

Synonym(s):

Anti-CALNB1, Anti-CNB, Anti-CNB1

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About This Item

MDL number:
UNSPSC Code:
12352203
NACRES:
NA.44

biological source

mouse

Quality Level

conjugate

unconjugated

antibody form

ascites fluid

antibody product type

primary antibodies

clone

CN-B1, monoclonal

contains

15 mM sodium azide

species reactivity

bovine, rat, human, mouse

technique(s)

immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable using neurons in human myenteric and prostatic ganglia
indirect ELISA: suitable
western blot: 1:3,000 using rat brain extract

isotype

IgG2b

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

General description

Calcineurin (CaN, heterodimeric enzyme) is a Ca(2+)/calmodulin (CaM)-stimulated protein phosphatase 3 (PPP3) consisting of a catalytic A subunit (CnA) and a Ca(2+)-binding regulatory B subunit (CnB). The calcium-binding regulatory subunit (calcineurin B) is coded by the PPP3R1 gene located on human chromosome 2. Protein phosphatase 3, regulatory subunit B, α (PPP3R1) is also known as CALN, CCN1, CNA1, CALNA, PPP2B and CALNA1. The regulatory subunit (calcineurin B) is widely expressed in brain while the catalytic subunit (calcineurin A) is abundantly expressed in Hassall′s corpuscles, localized in the thymic medulla and represents the terminal stages of thymic medullary epithelium.
Monoclonal Anti-Calcineurin (β-subunit) (mouse IgM isotype) is derived from the CN-B1 hybridoma produced by the fusion of mouse myeloma cells and splenocytes from BALB/c mice immunized with purified bovine brain calcineurin preparation. Two different calcineurin B has been reported in rat testis.

Specificity

In immunoblotting, the antibody recognizes an epitope located on the β-subunit of calcineurin (18 kDa, also called calcineurin B) and does not cross-react with the α-subunit.

Immunogen

bovine brain calcineurin

Application

Monoclonal Anti-Calcineurin (b-Subunit) antibody produced in mouse has been used in immunohistochemistry, indirect ELISA and western blotting.

Biochem/physiol Actions

Calcineurin calcium -binding subunit, calcineurin B, is immunologically conserved from yeast to mammals. immunoreactivity is detected at significant concentrations only in normal and neoplastic neurons regions of the cytoplasm dendrites, axons and axon terminals. A close correlation has been observed between inhibition of calcineurin by the complexes of cyclosporin A/cyclophilin and tacrolimus(FK506) and FK506 binding proteins (FKBPs) and inhibition of apoptosis. Calcineurin is an excellent marker enzyme for the detection of neuronal activity and synaptic plasticity after brain damage, such as an ischemic insult.
Calcineurin is a major soluble calmodulin-binding protein in the brain. It stimulates the expression of the surface molecules CD83, CD80, CD86, CD40 and HLA-DR by promoting secretion of inflammatory cytokines IL-6, TNF-α and IL-1β by human PBMC-derived dendritic cells. It plays an important role in signal transduction, activation of T cell. Calcineurin is an excellent marker enzyme for the detection of neuronal activity and synaptic plasticity after brain damage.

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

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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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The unique C terminus of the calcineurin isoform CNAbeta1 confers non-canonical regulation of enzyme activity by Ca2+ and calmodulin
Bond R, et al.
The Journal of biological chemistry, 292(40), 16709-16721 (2017)
Rachel Bond et al.
The Journal of biological chemistry, 292(40), 16709-16721 (2017-08-27)
Calcineurin, the conserved Ca2+/calmodulin-regulated phosphatase and target of immunosuppressants, plays important roles in the circulatory, nervous, and immune systems. Calcineurin activity strictly depends on Ca2+ and Ca2+-bound calmodulin (Ca2+/CaM) to relieve autoinhibition of the catalytic subunit (CNA) by its C
Substitution in position 3 of cyclosporin A abolishes the cyclophilin-mediated gain-of-function mechanism but not immunosuppression
Baumgrass R, et al.
The Journal of Biological Chemistry, 279(4), 2470-2479 (2004)
Neural functions of calcineurin in synaptic plasticity and memory
Baumgartel K and Mansuy IM
Learning & Memory, 19(9), 375-384 (2012)
Protein phosphatase 2B (PP2B, calcineurin) in Paramecium: partial characterization reveals that two members of the unusually large catalytic subunit family have distinct roles in calcium-dependent processes
Fraga D, et al.
Eukaryotic Cell, 9(7), 1049-1063 (2010)

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