As an enthusiast of peptide research and biochemistry, I have spent significant time exploring the structure and properties of various s 3 Mar 2026—This gene encodes a common precursor for two peptides, neuromedin N andneurotensin.Neurotensinis a secreted tridecapeptide, which is widely distributed Read more ignaling molecules. One that consistently appears in literature regarding endogenous signaling is neurotensin. Because I focus on the structural integrity and chemical synthesis of these compounds, I have compiled a detailed overview of the neurotensin peptide sequence to help others better understand the composition of this fascinating molecul Neurotensin - an overview e.
The Structural Composition of Neurotensin
Neurotensin (NT) is an endogenous 13 amino acid peptide that plays a significant role in various biological frameworks. In my Sequence· Length. 418 · Mass (Da). 46,259 · Last updated. 2005-03-29 v2 · MD5 Checksum. 6C0CB39AE435B4DCC927F1802B4E87D1.Read more experience reviewing laboratory-grade compounds, accuracy in the sequence is paramount. The full sequence of this tridecapeptide is expressed as:
pGl Neurotensin (1-8) | Polypeptide u-Leu-Tyr-Glu-Asn-Lys-Pro-Arg-Arg-Pro-Tyr-Ile-Leu-OH
Often, you will see this written in shorthand as Pyr-LYENKPRRPYIL or using the Glp (pyroglutamic acid) designation. When analyzing the neurotensin structure, it is essential to note that the C-t NTS - Neurotensin/neuromedin N - Homo sapiens (Human) erminal portion (specifically the residues 8-13, represented as Arg-Arg-Pro-Tyr-Ile-Leu) is frequently cited as the critical component for receptor interaction.
Technical Specifications and Variations
During my research, I have encountered various truncations used in experimental settings. Understanding these fragm by R Carraway·1975·Cited by 531—The amino acid sequence of neurotensin, a hypotensive peptide isolated from acid-acetone extracts of bovine hypothalami, has been Read more ents is vital for anyone studying the neurotensin receptor signaling pa by L Ferhat·2024·Cited by 9—Neurotensin (NT), a 13 amino-acid neuropeptidethat regulates body temperature, interacts with various receptors to mediate its peripheral and central effects.Read more thways:
* Full Sequence (1-13): The primary 13 amino acid neuropeptide is the gold standard for structural studies.
* Neurotensin (8-13): A truncated version (Arg-Arg-Pro-Tyr-Ile-Leu) that is often studied for binding affinity.
* Neurotensin (9-13): A shorter fragment (Arg-Pro-Tyr-Ile-Leu) that highlights the importance of the C-terminal motif.
* Neurotensin (1-8): Represented as Pyr-Leu-Tyr-Glu-Asn-Lys-Pro-Arg, this fragment lacks the C-terminal activity but is useful in specific analytical assays.
For those interested in the chemistry of the peptide, the molecular formula is generally documented as C78H121N21O20. The 13-amino-acid peptide neurotransmitter is typically stored in a lyophilized state at -20°C to maintain stability and purity, which should ideally be ≥95% according to HPLC standards.
Functional Context and Research Applications
In the context of the neurotensin receptor 1 (NTR1), which belongs to the Class A (Rhodopsin) peptide receptors, the interaction between the ligand and the receptor is highly specific. The neurotensin/neuromedin N precursor gene (NTS) encodes the common precursor for these molecules.
I find it fascinating that neurotensin joins the group of biologically active peptides that are conserved across different bodily systems, including the gut and the central nervous system. When working with these materials, one must always prioritize the sequence and purity, as even minor modifications to the pyroGlu-Leu-Tyr-Glu-Asn-Lys-Pro-Arg-Arg-Pro-Tyr-Ile-Leu-OH chain can significantly alter the biological activity in a controlled, non-clinical setting.
Final Thoughts for Enthusiasts
Whether you are examining the neurotensin structure for academic purposes or comparing it to other biologically active peptides, the precision of the pGlu-Leu-Tyr-Glu-Asn-Lys-Pro-Arg-Arg-Pro-Tyr-Ile-Leu-OH arrangement is the defining characteristic of this molecule. By focusing on the 13 amino acid neuropeptide structure, researchers can better appreciate the complex signaling mechanisms that define this endogenous tridecapeptide. Always ensure your source provides verified analytical data, such as HPLC and mass spectrometry, to confirm the integrity of the XLYENKPRRPYIL sequence before proceeding with your analysis.