相关实验视频

Updated: Apr 25, 2026

Multi-target Parallel Processing Approach for Gene-to-structure Determination of the Influenza Polymerase PB2 Subunit

Multi-target Parallel Processing Approach for Gene-to-structure Determination of the Influenza Polymerase PB2 Subunit

Published on: June 28, 2013

设计,联合表达和评估从热友菌的结构蛋白组装 ΦIN9393

Hong Liu¹, Milad Kheirvari¹, Ebenezer Tumban¹

¹Graduate Program in One Health Sciences, School of Veterinary Medicine, Texas Tech University, Amarillo, TX 79106, USA.

International journal of molecular sciences

|June 13, 2025

概括

研究人员在细菌中共同表达了菌体 ΦIN93 囊和膜蛋白. 虽然病毒样颗粒没有形成,但这项研究开创了评估这些蛋白质在病毒组装中的作用.

科学领域:

病毒学病毒学
结构生物学结构生物学
菌体研究研究菌体研究

背景情况:

菌体 ΦIN93 具有类似于二面体的囊体,可能由开放的读取框架 (ORF) 13 和 ORF14 形成.
在病毒组合过程中,五种假定的膜相关蛋白质 (ORF12,ORF16,ORF17,ORF19,ORF20) 可能充当支架蛋白.
之前的研究集中在囊蛋白表达上,忽视了膜相关蛋白在 ΦIN93 组合中的作用.

研究的目的:

研究菌体FIN93囊蛋白 (ORF13,ORF14) 和精选的膜相关蛋白 (ORF12,ORF16,ORF17) 的共同表达.
评估这些蛋白质在热友和中友细菌宿主中共同表达的可行性.
探索这些蛋白质对病毒样颗粒 (VLP) 形成的潜在贡献.

主要方法:

在*Thermus thermophilus*和BL21 Star细菌中使用单独的等离子体共同表达ORF13,ORF14,ORF12,ORF16和ORF17.
分析蛋白质表达水平和分子重量迁移模式.
微观或结构分析以检测VLP形成.

主要成果:

在两种细菌宿主中都成功实现了ORF13,ORF14,ORF12,ORF16和ORF17的共同表达.
与*Thermus thermophilus*相比,BL21 Star的蛋白质表达水平更高.
一些蛋白质,特别是ORF17,表现出改变的迁移模式,表明翻译后的修改或聚合.
同表达没有导致可观测的VLP的形成.

结论:

在细菌系统中,菌体 ΦIN93 囊和膜相关蛋白的同时表达是可行的.
目前的共同表达策略没有产生VLPs,这表明 ΦIN93 组件的潜在复杂性.
这种方法为未来的研究提供了基础,以确定VLP形成的特定蛋白质需求.

关键词:

BL21 星星的星星毛皮蛋白质是毛皮的蛋白质.与膜相关的蛋白质.蛋白质的共同表达.热友细菌是一种热友细菌.热友细菌 ΦIN93

更多相关视频

Phage Phenomics: Physiological Approaches to Characterize Novel Viral Proteins

Phage Phenomics: Physiological Approaches to Characterize Novel Viral Proteins

Published on: June 11, 2015

Synthesis of Infectious Bacteriophages in an E. coli-based Cell-free Expression System

Synthesis of Infectious Bacteriophages in an E. coli-based Cell-free Expression System

Published on: August 17, 2017

相关概念视频

Protein Complex Assembly

Protein Complex Assembly

Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types. Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...

Protein Folding

Protein Folding

Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to its biological function. Interactions between its constituent amino acids guide protein folding, and hence the protein structure is primarily dependent on its amino acid sequence.
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...

DNA Bacteriophages

DNA Bacteriophages

Bacteriophages, or phages, are viruses that specifically infect bacteria, utilizing their genetic material to hijack host cellular machinery for replication. DNA bacteriophages employ single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA) genomes. These phages exhibit diverse replication strategies and host interactions, influencing their ecological roles and applications in biotechnology and medicine.ssDNA BacteriophagesssDNA phages, with their small genomes, utilize unique strategies to...