All items are supplied for in vitro laboratory research use only — not for human or veterinary use, diagnosis or therapy.
Prices are per unit as listed; each catalog number ships with its Certificate of Analysis.
Catestatin — frequently asked
What is catestatin?
Catestatin is a peptide released by proteolytic processing of chromogranin A, a protein stored in dense-core secretory granules. It is studied as one of several bioactive fragments generated from that precursor in chromaffin cells and other neuroendocrine tissues.
Why are variant catestatin peptides supplied?
Human chromogranin A carries naturally occurring polymorphisms within the catestatin region, and equivalent rodent variants are available. Comparing wild-type and variant peptides side by side lets researchers ask whether single-residue changes alter reported activity in a given assay.
Which species forms are available?
Human, rat and mouse catestatin sequences are the usual options, together with the corresponding variant peptides. Sequences differ between species, so antibodies and assay kits raised against one form may not recognise another and are normally validated before use.
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