Keywords

Tat, Protein Transduction Peptide, Basic Amino Acid, Protein Transduction, Foreign Protein Expression

Abstract

Tat protein transduction peptide is a positively charged polypeptide rich in basic amino acids encoded by human immunodeficiency virus type 1 (hiv-1), and is a member of the protein transduction domain family. Long-term studies have found that its full length and the core peptide segment (ygrkkrrqrrr) of 11 basic amino acid-rich regions not only play an important role in the transmembrane transduction process of a variety of foreign biological macromolecules including proteins, polypeptides and nucleic acids, but And it can carry these exogenous biological macromolecules through various biomembrane structures of living cells (such as cell membranes and blood-brain barriers, etc.) and exert physiological functions, but its transmembrane transduction mechanism is still unclear. Recent studies have also found that the core peptide of tat also plays an important role in promoting the efficient expression of foreign proteins, and can significantly increase the level of efficient and soluble expression of foreign proteins, showing the new function of the tat protein transduction peptide. Based on the long-term research background of the transmembrane transduction of tat protein transducing peptide, a systematic review was conducted from the structural characteristics of tat protein transducing peptide, factors influencing its transmembrane transduction and its mechanism of action, etc., and further Combining the latest research progress of Tat protein transducing peptides, the follow-up research direction and application value are prospected from the aspects of drug research and development, mechanism exploration and development of new functions. It not only provides an in-depth explanation of the transmembrane transduction function of Tat protein transducing peptides. The significance provides a reference basis, and provides important reference information for the potential application value of tat protein transducing peptides in fields such as microbial engineering and protein engineering.

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Original research done by Wu Yonghong, Zhang Chenggang

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