Figure 1. . Tissue specific processing of proglucagon.

Figure 1.

Tissue specific processing of proglucagon. In the pancreas proglucagon is processed into glucagon, glicentin-related pancreatic polypeptide (GRPP), intervening peptide 1 (IP1), and major proglucagon fragment (MPGF) by the processing enzyme prohormone convertase 2 (PC2). In the intestine and in the brain proglucagon is processed by prohormone convertase 1/3 (PC1/3) into glucagon-like peptide 1 (GLP-1), glucagon-like peptide 2 (GLP-2), oxyntomodulin, intervening peptide 2 (IP2), and glicentin.

From: Glucagon Physiology

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