The chemical substance known as PYR-GLN-ARG-LEU-GLY-ASN-GLN-TRP-ALA-VAL-GLY-D-PHE-LEU-LEU-NH2, with the CAS number 108437-88-3, is a synthetic peptide composed of a sequence of amino acids. This peptide features a combination of both standard and D-amino acids, which can influence its stability and biological activity. The presence of a C-terminal amide group (NH2) suggests that it may exhibit enhanced binding affinity and resistance to enzymatic degradation compared to its free acid form. The specific arrangement of amino acids contributes to its potential functionality in biological systems, possibly influencing processes such as receptor binding, signaling pathways, or therapeutic applications. Peptides like this one are often studied for their roles in pharmacology, biochemistry, and molecular biology, particularly in the development of peptide-based drugs or as research tools in understanding protein interactions. The characteristics of this peptide, including its solubility, stability, and biological activity, would depend on its specific sequence and structural conformation.

PYR-GLN-ARG-LEU-GLY-ASN-GLN-TRP-ALA-VAL-GLY-D-PHE-LEU-LEU-NH2

108437-88-3: The chemical substance known as PYR-GLN-ARG-LEU-GLY-ASN-GLN-TRP-ALA-VAL-GLY-D-PHE-LEU-LEU-NH2, with the CAS number 108437-88-3, is a synthetic peptide composed of a sequence of amino acids. This peptide features a combination of both standard and D-amino acids, which can influence its stability and biological activity. The presence of a C-terminal amide group (NH2) suggests that it may exhibit enhanced binding affinity and resistance to enzymatic degradation compared to its free acid form. The specific arrangement of amino acids contributes to its potential functionality in biological systems, possibly influencing processes such as receptor binding, signaling pathways, or therapeutic applications. Peptides like this one are often studied for their roles in pharmacology, biochemistry, and molecular biology, particularly in the development of peptide-based drugs or as research tools in understanding protein interactions. The characteristics of this peptide, including its solubility, stability, and biological activity, would depend on its specific sequence and structural conformation.

For cellular and molecular biology applications

[D-Phe12, Leu14] Bombesin

Bombesin receptor blocker; stops binding in rat brain (IC50=2 μM), hinders amylase release (IC50=4 μM), reduces appetite suppression in vivo.

CAS 108437-88-3

PYR-GLN-ARG-LEU-GLY-ASN-GLN-TRP-ALA-VAL-GLY-D-PHE-LEU-LEU-NH2

[D-Phe<sup>1</sup><sup>2</sup>, Leu<sup>1</sup><sup>4</sup>] Bombesin

Ref: 02-J66013

[D-Phe12,Leu14]-Bombesin

Ref: TM-TP1916