Calponin regulates smooth muscle cell contraction and is a marker of smooth muscle cell differentiation. Calponin, an Actin- and Tropomyosin-binding protein, is characterized as an inhibitory factor of smooth-muscle actomyosin activity. Calponin is implicated in the regulation of smooth muscle contraction through its interaction with F-Actin and inhibition of the Actin-activated MgATPase activity of phosphorylated myosin. Both properties are lost following phosphorylation (primarily at Serine 175) by protein kinase C or calmodulin-dependent protein kinase II. The three forms of Calponin, Calponin 1 (basic Calponin), Calponin 2 (neutral Calponin) and Calponin 3 (acidic Calponin) are found in smooth muscle tissue. Additionally, Calponin 2 is found in heart muscle tissue and Calponin 3 is found in the brain.
Key Feature
Clonality
Polyclonal
Isotype
IgG
Host Species
Rabbit
Tested Applications
WBIPIFELISA
recommended for detection of Calponin 1 and 3 and, to a lesser extent, Calponin 2 of mouse, rat and human origin by WB, IP, IF and ELISA also reactive with additional species, including canine, bovine and porcine
Species Reactivity
HumanMouseRat
Concentration
1mg/ml
Purification
Affinity purified
Target Information
Alternative Names
epitope corresponding to amino acids 1-297 representing full length Calponin 1 of human origin
Tissue Specificity
epitope corresponding to amino acids 1-297 representing full length Calponin 1 of human origin
Western blot analysis of Calponin 2 expression in non-transfected: (A) and human Calponin 2 transfected: (B) 293T whole cell lysates.
Application Notes
recommended for detection of Calponin 1 and 3 and, to a lesser extent, Calponin 2 of mouse, rat and human origin by WB, IP, IF and ELISA also reactive with additional species, including canine, bovine and porcine
Additional Information
Form
Liquid
Storage Instructions
For short-term storage, store at 4° C. For long-term storage, aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.