China Animal Husbandry and Veterinary Medicine ›› 2022, Vol. 49 ›› Issue (2): 755-764.doi: 10.16431/j.cnki.1671-7236.2022.02.038

• Basic Veterinary Medicine • Previous Articles     Next Articles

Research Progress on the Interaction Between Small Molecules of Veterinary Drugs and Biometric Elements

WU Shuangmin1, LI Long1, HOU Ren1, CHEN Yushuang1, PENG Dapeng1,2   

  1. 1. National Reference Laboratory of Veterinary Drug Residues, The Key Laboratory for the Detection of Veterinary Drug Residues of Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan 430070, China;
    2. College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
  • Received:2021-06-23 Online:2022-02-05 Published:2022-01-27

Abstract: At present, due to unreasonable or illegal use of veterinary drugs, their prototypes or metabolites remain in animal derived food and water, which will endanger human health and damage the ecological environment.Therefore, the establishment of rapid detection methods of veterinary drug residues is particularly important.Receptors, antibodies, aptamers and other biometric elements have molecular recognition ability.According to its characteristics, different detection methods have been developed such as immunoassay, receptor detection and biosensor method, which are widely used in biomedical research.Because molecular recognition elements are the main body of analysis and affect the selectivity of analysis, the mechanism of interaction between different recognition elements and veterinary drugs has been paid more and more attention.With the development of computer technology, homologous modeling and molecular docking are widely used in residue detection, mainly used in the study of the interactions between drugs and proteins, antigens and antibodies, receptors and ligands and other biomolecules.This paper focused on the interaction mechanism between three recognition elements of single chain variable fragment (ScFv), receptor and aptamer and veterinary drug small molecules.It mainly analyzed the hydrogen bonds, hydrophobicity and key amino acids or bases formed at the binding site of biometric elements and veterinary drugs.The mechanism and law of drug and recognition element were explored at molecular level, so as to find out the key factors affecting the combination of drug and recognition element, and three recognition elements were summarized, in order to provide theoretical support for the comprehensive understanding of recognition mechanism and in vitro evolution, and prepare ScFv, receptors and aptamers with wider affinity, and lay a foundation for subsequent drug residue detection technology and drug development.

Key words: biometric element; single chain variable fragment (ScFv); receptor; aptamer; homology modeling; molecular docking

CLC Number: