Casein (kappa)
CSN3, CSN10, CSNK, Casein Kappa
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Antigen Preparation
A synthetic peptide corresponding to the N-terminus of mouse Casein protein.
Background
"Casein is the predominant phosphoprotein which has no disulphide bridges but rich in proline. It is found in fresh milk, as a salt of calcium. Casein is not coagulated by heat. It is precipitated by acids and by rennet, a proteolytic enzyme typically obtained from the stomachs of calves. The enzyme trypsin can hydrolyze off a phosphate-containing peptone. This protein is synthesized by mammary epithelium only in the presence of lactogenic hormone combination of insulin, hydrocortisone, and prolactin. Enhancement of the rate of secretion of newly-synthesised caseins occurs when mammary explants are challenged in vitro with agents that activate protein kinase A (PKA). The PKA-sensitive step(s) in casein secretion is early in the exocytosis pathway but inhibition of PKA does not impair casein maturation. PKA is located on membranes of vesicles situated in the Golgi region. Casein positive cells are present in all breast carcinomas with a variable distribution and degree of staining. Casein serves as an in vitro marker of terminally differentiated breast luminal epithelial cells."
PURIFICATION
The Rabbit IgG is purified by Epitope Affinity Purification
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SPECIFICITY
This antibody recognizes ~21 kDa of mouse Casein protein. The other species are not tested.
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FORMULATION
This affinity purified antibody is supplied in sterile Phosphatebuffered saline (pH7.2) containing antibody stabilizer
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STORAGE
The antibodies are stable for 24 months from date of receipt when stored at –20oC to –70oC. The antibodies can be stored at 2oC-8oC for three month without detectable loss of activity. Avoid repeated freezing-thawing cycles.
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Applications/Suggested Working Dilutions
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Immunoprecipitation
2-5 µg/ml
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Flow cytometry
Not tested
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