银黑狐 (Vulpes vulpes) 免疫球蛋白库的分子特征和复杂性
Xiaohua Yi1, Yanbo Qiu2, Puhang Xie2
1College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
BMC veterinary research
|March 29, 2025
概括
这项研究详细介绍了银黑狐免疫球蛋白基因结构和表达. 关键发现揭示了首选的基因使用和多样性机制,如V(D) J重组和体质突变,这对免疫遗传学至关重要.
科学领域:
- 免疫遗传学 免疫遗传学
- 进行比较基因组学.
- 分子生物学分子生物学
背景情况:
- 免疫球蛋白对于病原体防御至关重要.
- 了解狐免疫球蛋白基因有助于免疫遗传学研究.
- 银黑狐是用于遗传研究的独特物种.
研究的目的:
- 为了分析银黑狐免疫球蛋白的基因位置结构.
- 研究免疫球蛋白基因表达多样性的机制和偏好.
- 为了为银黑狐的疫苗设计提供基础.
主要方法:
- 对比基因组学方法来分析基因位置.
- 下一代测序 (NGS) 用于表达多样性.
- 5'RACE和PE300双部分测序用于表达曲目分析.
主要成果:
- 确定了许多功能VH,Vκ,Vλ,DH,JH,Jκ和Jλ基因.
- 在V,DH和J基因使用方面显示出强烈的偏好.
- 身体突变 (SHM) 发生在CDR和FR区域,并确定了特定的突变类型.
结论:
- 这项研究阐明了银黑狐免疫球蛋白基因结构和表达多样性.
- V(D) J重组和SHM是推动多样性的主要机制.
- 这些发现支持未来的疫苗开发,并加深免疫遗传知识.
相关概念视频
01:39Epistasis
In addition to multiple alleles at the same locus influencing traits, numerous genes or alleles at different locations may interact and influence phenotypes in a phenomenon called epistasis. For example, rabbit fur can be black or brown depending on whether the animal is homozygous dominant or heterozygous at a TYRP1 locus. However, if the rabbit is also homozygous recessive at a locus on the tyrosinase gene (TYR), it will have an unshaded coat that appears white, regardless of its TYRP1...
01:10Antibody Structure
Overview
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
01:20Immunoprecipitation
Immunoprecipitation, or IP, is a widely used technique that employs protein-antibody interactions to isolate proteins or protein complexes in their native state for studying protein-protein interactions, quaternary structures, or supramolecular complexes. Various modifications of the technique, including chromatin IP, cross-linking IP, and fluorescence IP, are commonly used.
Chromatin Immunoprecipitation
Chromatin immunoprecipitation, also known as ChIP, is used to study protein-DNA or...
Chromatin Immunoprecipitation
Chromatin immunoprecipitation, also known as ChIP, is used to study protein-DNA or...
01:28Diversity of Antigen Receptors
Antigen receptors are essential components of the immune system crucial in defending the body against foreign invaders. These receptors are present on the surface of B and T cells, enabling them to recognize antigens and mount an appropriate immune response.
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...