The sea urchin sperm receptor for egg jelly is a modular protein with extensive homology to the human polycystic kidney disease protein, PKD1.

The sea urchin sperm receptor for egg jelly is a modular protein with extensive homology to the human polycystic kidney disease protein, PKD1.
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鸡蛋果冻的海胆精子受体是一种模块化蛋白,与人类多囊肾脏病蛋白PKD1具有广泛的同源性。

DOI:
10.1083/jcb.133.4.809
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发表时间:
1996-05
影响因子:
7.8
通讯作者:
Vacquier, VD
Vacquier, VD
中科院分区:
生物学1区
文献类型:
--
作者:
Moy, GW;Mendoza, LM;Schulz, JR;Swanson, WJ;Glabe, CG;Vacquier, VD

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在受精过程中,海胆精子顶体反应(AR)是一种离子通道调节事件,由卵胶(EJ)中的糖蛋白触发。 210 kD 的精子膜糖蛋白是 EJ (REJ) 的受体。这一结论基于以下数据:纯化的 REJ 与点在硝酸纤维素上的 EJ 特异性结合,REJ 的 mAb 诱导精子 AR,纯化的 REJ 阻断抗体诱导,纯化的 REJ 吸收 EJ 的 AR 诱导活性。克隆了 REJ cDNA 的重叠片段(总长度,5,596 bp)。该序列通过对成熟 REJ 的 6 个肽进行微测序并通过使用根据该序列设计的合成肽的抗体进行蛋白质印迹来确认。 REJ 完全去糖基化,然后进行蛋白质印迹,得到与成熟氨基酸序列一致的大小估计值。 REJ采用模块化设计;它包含一个 EGF 模块和两个 C 型凝集素碳水化合物识别模块。最重要的是,它包含一个新颖的模块,本文命名为 REJ 模块(700 个残基),该模块与人类多囊肾病蛋白 (PKD1) 具有广泛的同源性。 PKD1 突变会导致常染色体显性多囊肾病,这是人类最常见的遗传病之一。 PKD1 蛋白突变导致的细胞生理学损伤仍然未知。海胆 REJ 的 REJ 模块与人类 PKD1 之间的同源性表明 PKD1 可能参与离子调节。
During fertilization, the sea urchin sperm acrosome reaction (AR), an ion channel-regulated event, is triggered by glycoproteins in egg jelly (EJ). A 210-kD sperm membrane glycoprotein is the receptor for EJ (REJ). This conclusion is based on the following data: purified REJ binds species specifically to EJ dotted onto nitrocellulose, an mAb to REJ induces the sperm AR, antibody induction is blocked by purified REJ, and purified REJ absorbs the AR-inducing activity of EJ. Overlapping fragments of REJ cDNA were cloned (total length, 5,596 bp). The sequence was confirmed by microsequencing six peptides of mature REJ and by Western blotting with antibody to a synthetic peptide designed from the sequence. Complete deglycosylation of REJ followed by Western blotting yielded a size estimate in agreement with that of the mature amino acid sequence. REJ is modular in design; it contains one EGF module and two C-type lectin carbohydrate-recognition modules. Most importantly, it contains a novel module, herein named the REJ module (700 residues), which shares extensive homology with the human polycystic kidney disease protein (PKD1). Mutations in PKD1 cause autosomal dominant polycystic kidney disease, one of the most frequent genetic disease of humans. The lesion in cellular physiology resulting from mutations in the PKD1 protein remains unknown. The homology between REJ modules of the sea urchin REJ and human PKD1 suggests that PKD1 could be involved in ionic regulation.
DOI: 10.1002/mrd.1120230408
发表时间: 1989-08-01
期刊: GAMETE RESEARCH
影响因子: --
作者:
LONGO, FJ;GEORGIOU, C;COOK, S
通讯作者: COOK, S
DOI: 10.1038/scientificamerican1093-50
发表时间: 1993-10-01
影响因子: 3
作者:
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通讯作者: BORK, P
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发表时间: 1970-01-01
期刊: NATURE
影响因子: 64.8
作者:
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通讯作者: LAEMMLI, UK
DOI: 10.1016/0022-2836(82)90515-0
发表时间: 1982-01-01
影响因子: 5.6
作者:
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通讯作者: DOOLITTLE, RF
DOI: 10.1038/ng0695-151
发表时间: 1995-06-01
期刊: NATURE GENETICS
影响因子: 30.8
作者:
HUGHES, J;WARD, CJ;HARRIS, PC
通讯作者: HARRIS, PC