D-His(14)-Teriparatid ist eine Sequenzvariante des 1-34-Fragments des humanen Parathormons, gekennzeichnet durch den Austausch des nativen L-Histidinrests an Position 14 gegen das D-Enantiomer. Diese stereochemische Inversion kann während der Peptidsynthese durch Racemisierung oder Epimerisierung unter Aktivierungs- und Entschützungbedingungen entstehen. Als Peptidverunreinigung und nicht als niedermolekulares Abbauprodukt wird sie typischerweise mittels Intaktmassen-LC-MS, LC-MS/MS und orthogonaler Peptidkartierung charakterisiert, wobei für eine sichere Zuordnung eine chirale oder hochauflösende chromatographische Trennung erforderlich ist. Da Summenformel und Molekulargewicht nicht angegeben sind, stützt sich die Identität auf sequenzaufgelöste Spektren und das Retentionsverhalten.
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To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
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