Related Experiment Video

Updated: Aug 25, 2025

Using Reverse Genetics to Manipulate the NSs Gene of the Rift Valley Fever Virus MP-12 Strain to Improve Vaccine Safety and Efficacy
09:13

Using Reverse Genetics to Manipulate the NSs Gene of the Rift Valley Fever Virus MP-12 Strain to Improve Vaccine Safety and Efficacy

Published on: November 1, 2011

17.5K

me53 encoded by Autographa californica multiple nucleopolyhedrovirus: from mechanism to function

Shuoyu Hou1, Yingqi Li2, Yuejun Fu3

  • 1Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, 030006, People's Republic of China.

Virus Genes
|October 13, 2022
PubMed

Insights

The ME53 protein is crucial for Autographa californica multiple nucleopolyhedrovirus (AcMNPV) infection, aiding in budded virus production and nucleocapsid formation. Its nuclear translocation is essential for optimal baculovirus replication and anti-insect activity.

Area of Science:

  • Molecular virology
  • Insect pathology
  • Baculovirus research

Background:

  • The me53 gene is a highly conserved immediate early gene in Lepidoptera baculoviruses.
  • Autographa californica multiple nucleopolyhedrovirus (AcMNPV) is a significant member of the Baculoviridae family, genus Alphabaculovirus.
  • ME53 protein's structure and functions during baculovirus infection are of increasing interest.

Purpose of the Study:

  • To review and discuss the emerging roles and novel mechanisms of the ME53 protein in AcMNPV infection.
  • To provide a reference for improving the anti-insect activity of AcMNPV through understanding ME53's functions.
  • To summarize ME53's known roles, including budded virus production, nucleocapsid formation, cell membrane interactions, and nuclear translocation.

Main Methods:

  • Literature review and synthesis of existing research on the ME53 gene and protein.
  • Analysis of ME53's interactions with viral components (GP64, VP39) and host cell structures.
  • Discussion of the importance of the nuclear translocation signal sequence for ME53 function.

Main Results:

  • ME53 plays key roles in budded virus (BV) production and nucleocapsid formation within host nuclei.
  • ME53 forms lesions on the cell membrane of AcMNPV-infected cells, co-localizing with GP64 and VP39.
  • The nuclear translocation signal sequence of ME53 is vital for efficient baculovirus production.

Conclusions:

  • ME53 is a multifunctional protein essential for various stages of the AcMNPV life cycle.
  • Understanding ME53's mechanisms of action and interaction is critical for enhancing baculovirus-based insect control strategies.
  • Further research into ME53's novel roles will facilitate the effective utilization and improvement of AcMNPV's anti-insect efficacy.
Keywords:
AcMNPVFunctionStructureme53 gene

More Related Videos

Combining Analysis of DNA in a Crude Virion Extraction with the Analysis of RNA from Infected Leaves to Discover New Virus Genomes08:56

Combining Analysis of DNA in a Crude Virion Extraction with the Analysis of RNA from Infected Leaves to Discover New Virus Genomes

Published on: July 27, 2018

11.1K
Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo12:42

Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo

Published on: January 7, 2019

9.6K

Related Concept Videos

Viral Structure00:56

Viral Structure

Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains a DNA- or RNA-based genome. The core is surrounded by a protective coat of proteins called the capsid. The capsid is composed of subunits called capsomeres. The capsid and genome-containing core are together known as the nucleocapsid.
63.1K
Leaky Scanning02:28

Leaky Scanning

During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R...
5.2K
Size and Structure of Viral Genomes01:26

Size and Structure of Viral Genomes

Viral genomes exhibit remarkable diversity in size, structure, and composition, influencing their replication strategies and interactions with host cells. These genomes consist of either DNA or RNA and may be linear or circular. Additionally, they can be single-stranded or double-stranded, with each configuration affecting how the virus propagates within a host. RNA viruses, for instance, generally have smaller genomes than DNA viruses, a factor that contributes to their high mutation rates and...
111
Retrovirus Life Cycles01:10

Retrovirus Life Cycles

Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the...
46.5K