相关实验视频

Updated: Jun 14, 2025

Navigating MARRVEL, a Web-Based Tool that Integrates Human Genomics and Model Organism Genetics Information

Navigating MARRVEL, a Web-Based Tool that Integrates Human Genomics and Model Organism Genetics Information

Published on: August 15, 2019

在确定HNA-1基因型和寻找新型等位基因时的陷

Kirstine Kløve-Mogensen¹, Tom Browne², Thure Mors Haunstrup^1,3,4

¹Department of Clinical Immunology, Aalborg University Hospital, 9000 Aalborg, Denmark.

International journal of molecular sciences

|August 29, 2024

概括

新的纳米孔测序准确地确定了人类中性粒细胞抗原1 (HNA-1) 变体的基因型. 这种方法克服了当前PCR-SSP和PCR-SBT技术的局限性,使得最终的等位基因分配和发现新的HNA-1变异成为可能.

科学领域:

免疫遗传学免疫遗传学
分子诊断学分子诊断

背景情况:

FCGR3B基因中的遗传变异决定了人类中性粒细胞抗原1 (HNA-1) 类型.
目前的HNA-1基因型定型方法如PCR-SSP和PCR-SBT对FCGR3B的特异性有限,原因是与FCGR3A的同质性.

研究的目的:

为了比较现有的HNA-1基因型鉴定技术的诊断能力与长期读取的纳米孔测序.
评估纳米孔测序在解决模糊性和识别新型HNA-1变异方面的潜力.

主要方法:

对TaqMan PCR,PCR-SSP,PCR-SBT和MLPA与长读纳米孔测序进行比较分析.
测试使用了具有不同FCGR3B副本数和罕见基因的丹麦样本,并通过对英语样本的盲测验进行验证.

主要成果:

现有的方法 (TaqMan PCR,PCR-SSP,PCR-SBT) 由于FCGR3A协同放大而与FCGR3B基因定型作斗争,复杂化了等位基因分布分析.
MLPA准确地量化了FCGR3B副本数,但未能检测到新型变异.
长时间读取的纳米孔测序证明了FCGR3B的高特异性,成功识别了剂量变异,罕见的等位基因和以前未被描述的变异.

结论:

目前的HNA-1基因型定型方法不足以获得明确的等位基因水平结果.
长读纳米孔测序为准确的HNA-1基因型定型,变体发现和确定的等位基因分配提供了一个有前途的解决方案.

关键词:

在FCGR3A中,它是FCGR3A.在FCGR3B中,在HNA-1中,它具有HNA-1的特征.这是一个PCRPCR.副本编号变化副本编号变化基因型定制是基因型定制.长时间阅读序列排序.这是一个纳米孔.

更多相关视频

Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation

Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation

Published on: January 16, 2019

Infinium Assay for Large-scale SNP Genotyping Applications

Infinium Assay for Large-scale SNP Genotyping Applications

Published on: November 19, 2013

相关概念视频

Genome-wide Association Studies-GWAS

Genome-wide Association Studies-GWAS

Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...

Hardy-Weinberg Principle

Hardy-Weinberg Principle

Diploid organisms have two alleles of each gene, one from each parent, in their somatic cells. Therefore, each individual contributes two alleles to the gene pool of the population. The gene pool of a population is the sum of every allele of all genes within that population and has some degree of variation. Genetic variation is typically expressed as a relative frequency, which is the percentage of the total population that has a given allele, genotype or phenotype.

Multiple Allele Traits

Multiple Allele Traits

The Concept of Multiple Allelism

Genetic Lingo

Genetic Lingo

Trihybrid Crosses

Trihybrid Crosses

Trihybrid Crosses
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal...

Punnett Squares

Punnett Squares