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Key Documents

HPA014263

Sigma-Aldrich

Anti-CNN1 antibody produced in rabbit

enhanced validation

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution

Synonym(s):

Anti-Basic calponin, Anti-Calponin H1, smooth muscle, Anti-Calponin-1

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About This Item

UNSPSC Code:
12352203
Human Protein Atlas Number:
NACRES:
NA.41

biological source

rabbit

Quality Level

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

product line

Prestige Antibodies® Powered by Atlas Antibodies

form

buffered aqueous glycerol solution

species reactivity

mouse, rat, human

enhanced validation

orthogonal RNAseq
Learn more about Antibody Enhanced Validation

technique(s)

immunoblotting: 0.04-0.4 μg/mL
immunohistochemistry: 1:200-1:500

immunogen sequence

PLDQATISLQMGTNKGASQAGMTAPGTKRQIFEPGLGMEHCDTLNVSLQMGSNKGASQRGMTVYGLPRQVYDPKYCLTPEYPELGEPAHNHHAHNYYNS

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... CNN1(1264)

General description

The gene CNN1 (calponin 1) encodes a 34kDa protein that has some sequence similarity with cardiac troponin I and T. It is mainly present in the cytoskeleton and contractile apparatus of differentiated smooth muscle cells. Calponin has three isoforms, calponin-1 (basic), 2 (neutral), and 3 (acidic). These isoforms have a conserved amino-terminal region containing calponin homology (CH)3 domain and a troponin I-like/actin-binding domain.

Immunogen

Calponin-1 recombinant protein epitope signature tag (PrEST)

Application

Anti-CNN1 antibody produced in rabbit, a Prestige Antibody, is developed and validated by the Human Protein Atlas (HPA) project . Each antibody is tested by immunohistochemistry against hundreds of normal and disease tissues. These images can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. The antibodies are also tested using immunofluorescence and western blotting. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige.

Biochem/physiol Actions

Calponin 1 is an actin-binding protein that is specific to smooth muscle cells. It serves as a marker for differentiation of smooth muscle cells. It may participate in the regulation of smooth muscle contraction by negatively regulating the actin-activated ATPase activity of myosin. It also binds to tropomyosin and calmodulin-binding protein. In vitro, it has the ability to interact with cytoskeletal components, such as myosin, caldesmon, desmin and tubulin. It participates in agonist-induced signal transduction in smooth muscle cells. The amino-terminal CH domain of this protein associates with extracellular regulated Ser/Thr kinases (ERK1 and ERK2) via PKC (protein kinase C). The protein plays an important role in cytoskeletal organization and development of vasculature.

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.

Linkage

Corresponding Antigen APREST71237

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Legal Information

Prestige Antibodies is a registered trademark of Merck KGaA, Darmstadt, Germany

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 1

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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Jian Tang et al.
The Journal of biological chemistry, 281(10), 6664-6672 (2005-12-01)
Calponin 2 (h2 calponin, CNN2) is an actin-binding protein implicated in cytoskeletal organization. We have found that the expression of calponin 2 is relatively restricted to vasculature from 16 to 30 h post-fertilization during zebrafish (Danio rerio) development. Forty-eight hours
Michele M Castro et al.
Arteriosclerosis, thrombosis, and vascular biology, 32(3), 662-668 (2011-12-27)
Matrix metalloproteinase (MMP)-2 is activated in aorta during endotoxemia and plays a role in the hypocontractility to vasoconstrictors. Calponin-1 is a regulator of vascular smooth muscle tone with similarities to troponin, a cardiac myocyte protein that is cleaved by MMP-2
Soo Jung Lee et al.
PloS one, 15(1), e0227672-e0227672 (2020-01-17)
A large number of pre-clinical and developmental investigations involve experimental vertebrate animals, of which mice have emerged as a favored organism. Recognition of the differences between humans and mice is essential for assessment of the relevance of animal studies to
Svenja Hinderer et al.
Biomedical materials (Bristol, England), 10(3), 034102-034102 (2015-03-19)
Elastic fibers are essential for the proper function of organs including cardiovascular tissues such as heart valves and blood vessels. Although (tropo)elastin production in a tissue-engineered construct has previously been described, the assembly to functional elastic fibers in vitro using

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