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MAB3576

Sigma-Aldrich

Anti-Caldesmon Antibody, smooth muscle, clone N5/22

clone N5/22, Chemicon®, from mouse

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

antibody form

purified antibody

antibody product type

primary antibodies

clone

N5/22, monoclonal

species reactivity

rabbit, bovine, human, pig

manufacturer/tradename

Chemicon®

technique(s)

immunocytochemistry: suitable
immunohistochemistry: suitable (paraffin)
immunoprecipitation (IP): suitable
western blot: suitable

isotype

IgG1

UniProt accession no.

shipped in

wet ice

target post-translational modification

unmodified

Gene Information

human ... CALD1(800)

General description

Caldesmon is a protein component of the thin filaments of smooth muscle myofibrils. It

is also localized in the stress fibers of fibroblasts. Caldesmon was identified as a

Ca2+/Calmodulin-binding protein with molecular weight of 120-150kDa (H-Caldesmon)

and 70-80kDa (L-Caldesmon). H-Caldesmon is the primary isoform in smooth muscle

while L-Caldesmon is most abundant in non-muscle cells. Caldesmon is capable of

binding two calmodulin molecules, one at either end of the protein. Additionally,

Caldesmon is an actin, myosin, and tropomyosin-binding protein. Human L-Caldesmon

is a protein of 538 amino acids with mobility of 80kDa. In vitro, L-Caldesmon inhibits

the actomyosin ATPase in an F-Actin-dependent manner. L-Caldesmon may play an

important function in motile processes such as secretion and organelle movement.

Specificity

Caldesmon, smooth muscle. By Western blot the antibody recognizes a protein of 150-kDa.

Immunogen

Crude smooth muscle extract from normal human adult uterus.
Epitope: smooth muscle

Application

Detect Caldesmon using this Anti-Caldesmon Antibody, smooth muscle, clone N5/22 validated for use in IP, WB, IC, IH(P).
Research Category
Metabolism
Research Sub Category
Muscle Physiology
Western blot. Suggested blocking buffer is TBS-Tween with 2% BSA. Suggested dilution buffer is TBS-Tween with 0.05% sodium azide. Preferred gel percentage is 7% and/or 4-20% (or similar) gradient gel.

Immunohistochemistry on frozen and paraffin embedded tissue sections. Suggested fixation for frozen tissue sections is acetone fix for 6 minutes at room temperature. For formalin fixed paraffin embedded tissue sections: microwave in 0.01M citrate buffer (pH 6.0) for 8-10 minutes (note that all microwaves differ and adjustments may need to be made) follow with enzyme digestion (0.01% pronase for 10 mintues). Suggested blocking agent is fetal bovine serum. The antibody has also been used successfully on methyl-Carnoy fixed tissue.

Immunocytochemistry

Immunoprecipitation. Suggested extraction buffer is 20 mM Tris-HCl, pH 7.4, 150 mM NaCl, 1% Triton X-100, 0.1% SDS, 0.5% deoxycholic acid-NaCl and 0.5 mM PMSF. Final reaction volume is 1 mL and suggested capture agent is agarose conjugated anti-mouse IgG.

Optimal working dilutions must be determined by the end user.

Linkage

Replaces: 04-590

Physical form

Format: Purified
Liquid in 0.02M Phosphate buffer with 0.25M NaCl and 0.1% sodium azide.

Storage and Stability

Maintain at 2-8°C in undiluted aliquots up to 6 months after date of receipt

Analysis Note

Control
POSITIVE CONTROL:

Smooth muscle (e.g. aterial tunica media). Negative control: any nonmuscle tissue (e.g. arterial tunica adentitial).

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Legal Information

CHEMICON 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

12 - Non Combustible Liquids

WGK

WGK 2

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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Jonathan Paul et al.
PloS one, 6(6), e21542-e21542 (2011-07-09)
Human myometrium develops phasic contractions during labor. Phosphorylation of caldesmon (h-CaD) and extracellular signal-regulated kinase 1/2 (ERK 1/2) has been implicated in development of these contractions, however the phospho-regulation of these proteins is yet to be examined during periods of
Alvaro Yogi et al.
Biomedicines, 9(7) (2021-08-07)
Synthetic grafts have been developed for vascular bypass surgery, however, the risks of thrombosis and neointimal hyperplasia still limit their use. Tissue engineering with the use of adipose-derived stem cells (ASCs) has shown promise in addressing these limitations. Here we
M G Frid et al.
Developmental biology, 153(2), 185-193 (1992-10-01)
Expression of the regulatory contractile proteins, heavy caldesmon (h-caldesmon) and calponin was studied in human aortic smooth muscle cells (SMCs) during development and compared with the expression of alpha-SM-actin and smooth muscle-myosin heavy chain (SM-MHCs). For this study, novel monoclonal

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