Cultivated silkworm microsporidian polar filament protein PTP2 gene and uses thereof

Abstract

The invention relates to a very important protein gene PTP2 related to propagation and infection of nosema bombycis nageli. A gene order CDS for encoding nosema bombycis nageli polar tube PTP2 is obtained according to 9-fold genome data of the nosema bombycis nageli and proven by a series of biotechnology clonings. The nosema bombycis nageli polar tube PTP2 obtained in the invention plays a very important role in studying a propagation and infection mechanism of microsporidian, thus further playing a role in productive practice and prevention and treatment of the microsporidian disease. Experiments and analyses such as RNAi intervention and the like indicate that after the polar tube protein PTP2 is intervened, the microsporidian loses the capacity of infecting a host, therefore, the polar tube protein PTP2 of the microsporidian and potential regulator genes thereof become new factors for treating microsporidian infection, in addition, the method of modifying genes can be adopted to express the polar tube protein PTP2 in an abundant way, thus killing part of pests such as locust and the like.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to a PTP2 gene derived from the silkworm microsporidium extremely silk protein related to the reproduction and infection of the silkworm microsporidia. Background technique [0002] Microsporidia are intracellular obligate parasitic protozoa commonly distributed in nature. There are nearly 150 genera and more than 1,200 species. They have a very wide range of hosts, including vertebrates and invertebrates. They are economic insects, fish, rabbits, hair-producing Deadly pathogen of animals, rodents and primates. Nosema bombycis belongs to the phylum Protozoa, the subphylum Monofilamenta, and the class Microsporidia in taxonomic status. Microsporidium parasitizes the economic insect Bombyx mori and causes severe infectious microparticle disease, and because Microsporidium can be transmitted to the next generation through the embryo, it has been listed as the legal quarantine object of se...

AI Technical Summary

Problems solved by technology

However, the current research on the polar tube protein of Microsporidia is limited to a small number of Microsporidia such as Encephalitozoon, Glugea, Ameson and Nosema.