Little gastrin I

Little gastrin I

Names
Other names Gastrin I; Human gastrin I; pGlu-Gly-Pro-Trp-Leu-Glu-Glu-Glu-Glu-Glu-Ala-Tyr-Gly-Trp-Met-Asp-Phe-NH2
Identifiers
CAS Number	10047-33-3 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:75441 N
IUPHAR/BPS	3559
PubChem CID	16162108
UNII	L6G91DE14D Y
SMILES C[C@@H](C(=O)N[C@@H](CC1=CC=C(C=C1)O)C(=O)NCC(=O)N[C@@H](CC2=CNC3=CC=CC=C32)C(=O)N[C@@H](CCSC)C(=O)N[C@@H](CC(=O)O)C(=O)N[C@@H](CC4=CC=CC=C4)C(=O)N)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC5=CNC6=CC=CC=C65)NC(=O)[C@@H]7CCCN7C(=O)CNC(=O)[C@@H]8CCC(=O)N8
Properties
Chemical formula	C97H124N20O31S
Molar mass	2098.20 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Little gastrin I is a form of gastrin commonly called as gastrin-17. This is a protein hormone, secreted by the intestine.

Gastrin II has identical amino acid composition to Gastrin I, the only difference is that the single tyrosine residue is sulfated in Gastrin II.