Nesfatin-1 is an 82-amino-acid peptide studied in laboratory research as a cleavage product of nucleobindin-2 (NUCB2) and as a tool in cell-based peptide signaling studies in vitro. Laboratory work uses defined synthetic or recombinant material so experiments are reproducible from lot to lot.

Structure: nesfatin-1 corresponds to the N-terminal fragment of NUCB2, and fragment boundaries are a key structural variable in laboratory studies comparing nesfatin-1 with nesfatin-2 and nesfatin-3 fragments. Identity and purity are confirmed by HPLC and mass spectrometry, and the lot-matched certificate of analysis is reviewed before use.

Laboratory applications: cell culture assays probing peptide signaling readouts, structure-activity studies comparing NUCB2 fragments, and stability and folding studies under controlled laboratory conditions. Vehicle controls, analytical verification, and replication are standard. In vitro findings describe behavior in laboratory systems only; no conclusions about human use can be drawn from them.

Analytical notes: store lyophilized material sealed, protected from light and moisture; verify identity and purity by HPLC/MS on receipt; avoid repeated freeze-thaw cycles; record lot numbers in laboratory documentation.

Disclaimer: This material is supplied for laboratory research purposes only. Not for human consumption. Not for medical, therapeutic, diagnostic, or veterinary use. No dosing, reconstitution-for-use, or efficacy information is provided or implied.

Citations: standard nesfatin-1 and NUCB2 literature; peptide characterization reviews; standard HPLC/MS methods.