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Identification of Proteins in Toad Venom by NanoLC-LTQ-Orbitrap Velos Pro

??OBJECTIVE To proteins in toad venom. To investigate the by proteomic approach. METHODS The total proteins from the ear-side gland of toad were digested by trypsin, and the peptides were further analyzed by the NanoLC-linear trap quadropole (LTQ)-Orbitrap Velos Pro.. The raw data acquired by mass spectrometer were imported into MaxQuant software for the identification of peptides and proteins. The proteins were categorized based on gene ontology annotation in biological process, cellular component and molecular function. RESULTS A total of 407 protein groups and 880 peptides were identified. There were 76 pathways associated with the identified proteins in toad venom, including the 5-HT receptor mediated signaling pathway, beta adrenergic receptor signaling pathway, blood coagulation, cadherin signaling pathway, cholesterol biosynthesis, etc.. CONCLUSION This study lays the foundation for further exploration of the proteins in toad venom and their functions.