[Tyr0] Gastric Inhibitory Peptide (23-42), human; [Tyr22] Gastri

[Tyr0] Gastric Inhibitory Peptide (23-42), human; [Tyr22] Gastri is a synthetic research peptide in the glucose-dependent insulinotropic polypeptide (GIP) family. GIP is a 42-residue incretin hormone produced by intestinal K cells and acting through the class B GIP receptor. N-terminal processing is functionally important; truncated forms can show reduced agonism or antagonist properties, so exact residue numbering is critical.

• GIP receptor assays
• incretin signaling studies
• DPP-IV processing research
• GIP fragment structure-activity studies

The exact sequence, residue range, species, terminal state, and chemical modifications should be matched to the intended assay. Fragmentation or processing can materially alter receptor selectivity, potency, aggregation, or enzymatic behavior.

1. Glucose-dependent insulinotropic polypeptide (GIP)
2. GIP receptor antagonists and truncated GIP peptides