ARHGAP35 is a novel factor disrupted in human developmental eye phenotypes.

ARHGAP35 is a novel factor disrupted in human developmental eye phenotypes.
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ARHGAP35是在人类发育性眼表型中破坏的新因素。

DOI:
10.1038/s41431-022-01246-z
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发表时间:
2023-03
期刊:
European journal of human genetics : EJHG
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ARHGAP35 在细胞迁移、侵袭和分裂、神经元形态发生和基因/mRNA 调控中具有已知的作用;先前的研究表明,它在人类癌症以及小鼠眼睛、神经组织和肾脏结构的发育中发挥作用。我们在来自四个患有无眼症、小眼症、缺损和/或眼前节发育不全疾病的家庭的五名个体中发现了 ARHGAP35 的破坏性变异,以及一些家庭中的可变非眼表型,包括肾脏、神经或心脏异常。三个变体影响了蛋白质的极端 C 末端,其中两个导致移码和 C 末端延伸,另一个导致 Rho-GAP 结构域的错义变化;第四个(无义)变体影响了基因的中部,并且是唯一预计会经历无义介导的衰变的等位基因。这项研究表明 ARHGAP35 与人类眼睛发育表型有关。已识别等位基因的 C 端聚类表明眼部疾病可能存在共同机制,但需要进一步研究。
ARHGAP35 has known roles in cell migration, invasion and division, neuronal morphogenesis, and gene/mRNA regulation; prior studies indicate a role in cancer in humans and in the developing eyes, neural tissue, and renal structures in mice. We identified damaging variants in ARHGAP35 in five individuals from four families affected with anophthalmia, microphthalmia, coloboma and/or anterior segment dysgenesis disorders, together with variable non-ocular phenotypes in some families including renal, neurological, or cardiac anomalies. Three variants affected the extreme C-terminus of the protein, with two resulting in a frameshift and C-terminal extension and the other a missense change in the Rho-GAP domain; the fourth (nonsense) variant affected the middle of the gene and is the only allele predicted to undergo nonsense-mediated decay. This study implicates ARHGAP35 in human developmental eye phenotypes. C-terminal clustering of the identified alleles indicates a possible common mechanism for ocular disease but requires further studies.
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