相关实验视频

Updated: Jan 12, 2026

Identification of Mouse and Human Antibody Repertoires by Next-Generation Sequencing

Identification of Mouse and Human Antibody Repertoires by Next-Generation Sequencing

Published on: March 15, 2019

使用EquCab3基因组,对马类免疫球蛋白的兰巴光链谱和非编码区域进行表征

Glória Maria da Silva¹, Carlena Navas¹, Milene Barbosa Carvalho²

¹Laboratory of Synthetic Biology and Biomimetics, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas - ICB, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.

Molecular immunology

|October 30, 2025

概括

研究人员分析了马类免疫球蛋白兰巴达光链 (Igλ),揭示了保存的促进子区域和受限制的基因使用. 这项研究增强了对马的抗体谱的理解,为未来的治疗应用提供了帮助.

科学领域:

免疫遗传学免疫遗传学
进行比较的基因组学.
马类免疫学马类免疫学

背景情况:

马性免疫球蛋白在血清治疗中至关重要,但对免疫球蛋白兰巴光链 (Igλ) 的分子数据有限.
国际免疫遗传学信息系统 (IMGT) 缺乏全面的马性Igλ注释,阻碍了谱系分析.
Igλ占循环抗体的90%以上,因此其表征对于了解马类抗体谱系至关重要.

研究的目的:

分析马类Igλ谱,包括促进区域和共刺激元素.
通过映射V和J基因段来改善马类Igλ基因的注释.
描述马类Igλ的组成,基因使用和促进体特征.

主要方法:

使用保存的人类序列推断促销者特征,对马 Igλ 谱的分析.
在马基因组组合EquCab2和EquCab3.3之间映射V和J基因段位置.
识别新的等位基因和非编码区域的特征,包括像八位基因和TATA-Box.com这样的促销元件.

主要成果:

在马类免疫球蛋白促进体区域 (如八度体区域) 确定了类似于人类序列的保存基因.
发现了一种新的J基因段,J4S1*01,它占J基因注释的50%以上,并注意到V基因段的使用受到限制 (从四个段中约70%).
描述了CDR-L3区域,长度主要为10-11个氨基酸,氨酸是最常见的氨基酸.

结论:

该研究增强了马 Igλ 谱的注释和表征,包括促进区域和共同刺激元素.
结果提供了对马类抗体组成,基因使用和促进体特征的见解,这对未来的研究至关重要.
这项工作促进了对马类抗体在血清治疗和其他领域的理解和潜在应用.

关键词:

抗体名录中的抗体.在EquCab2中使用EquCab2 在EquCab3中使用EquCab3 马马的马,就是马马.兰巴达轻链是什么意思马类抗体马类抗体推广区域是一个推广区域.

更多相关视频

Development of an in vitro model system for studying the interaction of Equus caballus IgE with its high-affinity receptor FcεRI

Development of an in vitro model system for studying the interaction of Equus caballus IgE with its high-affinity receptor FcεRI

Published on: November 1, 2014

T and B Cell Receptor Immune Repertoire Analysis using Next-generation Sequencing

T and B Cell Receptor Immune Repertoire Analysis using Next-generation Sequencing

Published on: January 12, 2021

相关概念视频

Genomic DNA in Eukaryotes

Genomic DNA in Eukaryotes

Eukaryotes have large genomes compared to prokaryotes. To fit their genomes into a cell, eukaryotic DNA is packaged extraordinarily tightly inside the nucleus. To achieve this, DNA is tightly wound around proteins called histones, which are packaged into nucleosomes that are joined by linker DNA and coil into chromatin fibers. Additional fibrous proteins further compact the chromatin, which is recognizable as chromosomes during certain phases of cell division.