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相关概念视频

Lampbrush Chromosomes01:51

Lampbrush Chromosomes

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In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops...
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Lethal Alleles02:41

Lethal Alleles

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Agouti: A Lethal Allele
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
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Pleiotropy01:33

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Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
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Adrenal Gland Disorders01:27

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Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
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Genetic Lingo01:11

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Overview
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Complementation Tests00:49

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A complementation test is a simple cross to identify whether the two mutations are located on the same gene or different genes. It was first performed by Edward Lewis in the 1940s while working on fruit flies. He developed the test to identify the location and arrangement of different mutations on chromosomes.
Organisms heterozygous for different mutations are crossed pairwise in all combinations. If present on different genes, the mutations can complement each other by providing the missing...
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相关实验视频

Updated: Jun 15, 2025

An Electrochemiluminescence-Based Assay for MeCP2 Protein Variants
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An Electrochemiluminescence-Based Assay for MeCP2 Protein Variants

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在基路伯的PLCG2变体.

Jennifer G Chester1, Benjamin Carcamo2, David A Gudis3

  • 1Department of Medicine, Division of Pulmonary, Allergy, and Critical Care, Columbia University, New York, NY.

The Journal of allergy and clinical immunology
|August 28, 2024
PubMed
概括
此摘要是机器生成的。

在PLCG2中获得功能的变体可能会导致基路比主义,这种情况以前与SH3BP2有关. 这一发现扩大了对PLAID的理解,并建议对受影响患者进行骨成像.

关键词:
一个玩具玩具玩具.自发炎症是一种自发炎症.基路伯教是基路伯教的一个形式.免疫调节失调 免疫调节失调脂酶 C 玛2 脂酶 C 玛2 玛2

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Visualization of Chondrocyte Intercalation and Directional Proliferation via Zebrabow Clonal Cell Analysis in the Embryonic Meckel’s Cartilage

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科学领域:

  • 遗传学 是一个遗传学.
  • 免疫学 免疫学 免疫学
  • 儿科牙科 儿科牙科

背景情况:

  • 基路比主义通常是由SH3BP2基因变异引起的,导致面部骨损伤.
  • 在PLCG2中,功能增益 (GOF) 变异会导致PLAID,一种具有免疫失调的疾病,但以前没有报道过基路比主义.
  • 信号通路涉及SH3BP2,脂酶C玛2 (PLCG2) 和骨质细胞活动.

研究的目的:

  • 为了调查GOF PLCG2变体与基路伯主义之间的潜在关联.
  • 为了确定PLCG2变异是否可能是对SH3BP2变异负的患者基因原因.

主要方法:

  • 检查了两名基路比症患者的临床,实验室和基因组数据.
  • 使用流细胞计评估初级B细胞受体诱导的流量.
  • 基因分析以确定SH3BP2和PLCG2.2中的变异.

主要成果:

  • 两名患有像病变的患者缺乏SH3BP2变异,但具有罕见的GOF PLCG2变异.
  • 在一名患者身上观察到B细胞受体诱导的流量增加.
  • 患者表现出可变的幽默缺陷,自身炎症性皮疹和其他与PLAID一致的发现.

结论:

  • GOF PLCG2 变种可能是基因基因基因的基因原因,特别是在SH3BP2-负个体中.
  • 扩张性骨病变扩大了已知的自身炎症性PLAID的表型.
  • 在被诊断患有PLAID的患者中,应该考虑进行骨图像.