[Progress on X-linked mental retardation related gene JARID1C]
Xu Lei1, Xiao-Cai Gao, Fu-Chang Zhang
1Institute of Population and Health, College of Life Science, Northwest University, Xi'an 710069, China. leixu840806@163.com
Yi Chuan = Hereditas
|March 18, 2010
Summary
JARID1C gene mutations are linked to X-linked mental retardation. Understanding its role in cognitive ability and brain function aids in diagnosing and preventing intellectual disabilities.
Area of Science:
- Genetics
- Neuroscience
- Molecular Biology
Context:
- JARID1C is implicated in X-linked mental retardation.
- Its gene product affects gene expression in the brain.
- This impacts human cognitive abilities.
Purpose:
- To review the current understanding of JARID1C.
- To explore its physiological and cognitive functions.
- To discuss future research directions.
Summary:
- JARID1C, a gene associated with X-linked mental retardation, plays a role in regulating gene transcription within the nervous system.
- Its product is crucial for normal cognitive function.
- This review covers JARID1C's location, isolation, and functions, highlighting its significance in understanding intellectual disabilities.
Impact:
- Provides insights into the molecular mechanisms of mental retardation.
- Offers potential references for clinical diagnosis and prevention strategies.
- Guides future research on JARID1C and cognitive development.
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X-linked Traits
In most mammalian species, females have two X sex chromosomes and males have an X and Y. As a result, mutations on the X chromosome in females may be masked by the presence of a normal allele on the second X. In contrast, a mutation on the X chromosome in males more often causes observable biological defects, as there is no normal X to compensate. Trait variations arising from mutations on the X chromosome are called “X-linked”.
X-linked Traits
In most mammalian species, females have two X sex chromosomes and males have an X and Y. As a result, mutations on the X chromosome in females may be masked by the presence of a normal allele on the second X. In contrast, a mutation on the X chromosome in males more often causes observable biological defects, as there is no normal X to compensate. Trait variations arising from mutations on the X chromosome are called “X-linked”.
Sex-linked Disorders
Like autosomes, sex chromosomes contain a variety of genes necessary for normal body function. When a mutation in one of these genes results in biological deficits, the disorder is considered sex-linked.
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The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
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Sex Linked Disorders
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