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Monoclonal Anti-Calponin antibody produced in mouse

clone hCP, ascites fluid

MDL number:

Quality Level

biological source




antibody form

ascites fluid

antibody product type

primary antibodies


hCP, monoclonal

mol wt

antigen 34 kDa


15 mM sodium azide

species reactivity

human, rabbit, pig, mouse, rat


immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable
immunoprecipitation (IP): suitable
microarray: suitable
western blot: 1:10,000 using human uterus extract



UniProt accession no.

shipped in

dry ice

storage temp.


Gene Information


The antibody hCP (also cited as CALP), localizes calponin in mammalian smooth muscle. In human uterus, an additional band of approximately 27 kDa (l-calponin) may also be stained. The antibody does not cross-react with skeletal, cardiac or non-muscle tissue calponin. Nevertheless, the antibody exhibits cross-reactivity with an epitope (150 kDa range) in human or mouse skeletal muscle. In immunohistochemical staining, the product exhibits smooth muscle specificity. It stains vascular and visceral smooth muscle cells in tissue sections and primary cultured cells (or early passages), but not most cell lines originally derived from smooth muscle. The antibody does not stain epithelial, endothelial or connective tissue fibroblast cells. This product does not cross react with smooth muscle tissue from chicken.


human uterus smooth muscle extract.


Monoclonal Anti-Calponin antibody produced in mouse is suitable for the following applications:
  • Immunohistochemistry using formalin-fixed, paraffin-embedded sections
  • Immunoprecipitation
  • Microarray
  • Western blotting (at a dilution of 1:10,000 using human uterus extract)
  • Flow cytometry analysis

Biochem/physiol Actions

Calponin is a calcium binding protein that belongs to a family of actin-associated proteins. Calponin is necessary for autophosphorylation of protein kinase C (PKC) in vascular smooth muscle (VSM). Calponin-1 inhibition can prevent uterine smooth muscle cell migration, cause morphological change and rearrange F-actin without affecting its proliferation and apoptosis. Calponin h1 (CN) is a differentiation marker of smooth muscle cells and is down-regulated in the blood vessels of several human tumors. It can inhibit actomyosin ATPase activity. The h1 and h2 calponins bind F-actin and play a key role in regulating actin filaments in smooth muscle and non-muscle cells.


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.

Storage Class Code

12 - Non Combustible Liquids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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Brandi N Davis-Dusenbery et al.
The Journal of biological chemistry, 286(32), 28097-28110 (2011-06-16)
In the postnatal vasculature, fully differentiated and quiescent vascular smooth muscle cells (VSMCs) in a "contractile" phenotype are required for the normal regulation of vascular tone. The transforming growth factor-β (TGF-β) superfamily of growth factors (TGF-βs and bone morphogenetic proteins
Guoqing Hu et al.
The Journal of biological chemistry, 285(16), 11800-11809 (2010-02-20)
Fully differentiated mature smooth muscle cells (SMCs) are characterized by the presence of a unique repertoire of smooth muscle-specific proteins. Although previous studies have shown myocardin to be a critical transcription factor for stimulating expression of smooth muscle-specific genes, the
Mun Chun Chan et al.
Molecular and cellular biology, 31(3), 517-530 (2010-12-08)
Pulmonary artery hypertension (PAH) is characterized by elevated pulmonary artery resistance and increased medial thickness due to deregulation of vascular remodeling. Inactivating mutations of the BMPRII gene, which encodes a receptor for bone morphogenetic proteins (BMPs), are identified in ∼60%
Yong-hong Gu et al.
Nan fang yi ke da xue xue bao = Journal of Southern Medical University, 30(6), 1369-1372 (2010-06-30)
To study the effects of calponin-1 expression inhibition on the proliferation , invasiveness, apoptosis and cytoskeleton of uterine smooth muscle cells, and explore the molecular mechanism of calponin-1 in the uterine smooth muscle cells for labor onset. siRNA-calponin-1 adenovirus plasmid
Y Yanagisawa et al.
European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology, 34(5), 531-537 (2007-08-21)
Calponin h1 (CN) is a differentiation marker of smooth muscle cells that has been reported to be down-regulated in the blood vessels of several human tumors. In this study, we examined CN expression in blood vessels in relation to the

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