Explain bind a cation exchanger or an anion exchanger resins

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At pH=7, do you expect the following peptides to bind a cation exchanger or an anion exchanger resins?

a. NH2-ser-glu-cys-tyr-ala-asp-lys-COOH

b. NH2-ala-arg-lys-thr-asn-glu-lys-COOH

Reference no: EM13256660

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