Point mutation in a leucine-rich repeat of platelet glycoprotein Ib alpha resulting in the Bernard-Soulier syndrome.

Point mutation in a leucine-rich repeat of platelet glycoprotein Ib alpha resulting in the Bernard-Soulier syndrome.
复制标题

血小板糖蛋白 Ib α 富含亮氨酸重复序列的点突变导致 Bernard-Soulier 综合征。

DOI:
10.1172/jci116692
复制
发表时间:
1993
期刊:
The Journal of clinical investigation
影响因子:
--
通讯作者:
Ruggeri,ZM
Ruggeri,ZM
中科院分区:
--
文献类型:
--
作者:
Ware,J;Russell,SR;Marchese,P;Murata,M;Mazzucato,M;DeMarco,L;Ruggeri,ZM

文献摘要

参考文献

被引文献

相似文献

富含亮氨酸的重复序列是一种保守的结构基序,但意义不明,存在于一组来自不同物种的蛋白质中。其中包括人血小板糖蛋白Ib-IX-V复合物的四种组分,该复合物是一种膜受体,通过与粘附蛋白von Willebrand因子相互作用,在血小板的血栓形成功能中发挥重要作用。我们发现,糖蛋白Ib α亚基中六个富含亮氨酸重复序列之一的单个氨基酸取代(Ala 156-->瓦尔)导致先天性出血性疾病Bernard-Soulier综合征的变异形式,其特征是巨大的功能障碍性血小板。先证者及其家族成员的遗传学研究通过表达的重组GP Ib α片段的免疫学和功能分析来补充,以证明观察到的突变是缺陷性血管性血友病因子结合的原因。这些研究确定了该家族中Bernard-Soulier综合征的分子基础,并证明富含亮氨酸的重复序列的结构完整性对于糖蛋白Ib-IX-V受体复合物的正常功能是必要的,并且可能对于正常的血小板形态也是必要的。图片
Leucine-rich repeats are a conserved structural motif, of yet undefined significance, found in a group of proteins from different species. Among these are the four components of the human platelet glycoprotein Ib-IX-V complex, a membrane receptor that performs an essential role in the thrombogenic function of platelets by interacting with the adhesive protein, von Willebrand factor. We have found that a single amino acid substitution (Ala156-->Val) within one of the six leucine-rich repeats in the alpha-subunit of glycoprotein Ib results in a variant form of the congenital bleeding disorder, Bernard-Soulier syndrome, characterized by giant dysfunctional platelets. Genetic studies of the propositus and his family members were complemented by immunological and functional analysis of expressed recombinant GP Ib alpha fragments to demonstrate that the observed mutation is the cause of defective von Willebrand factor binding. These studies define the molecular basis of the Bernard-Soulier syndrome within this family and demonstrate that structural integrity of a leucine-rich repeat is necessary for normal function of the glycoprotein Ib-IX-V receptor complex and, possibly, for normal platelet morphology.Images
伯纳德-苏利埃综合征中的其他糖蛋白缺陷:通过亲本分析确认遗传基础。
DOI: 10.1016/s0031-3025(16)38197-1
发表时间: 1983
期刊: Blood
影响因子: 20.3
作者:
M. Berndt;C. Gregory;B. Chong;H. Zola;P. Castaldi
通讯作者: P. Castaldi
DOI: 10.1038/255720a0
发表时间: 1975-01-01
期刊: NATURE
影响因子: 64.8
作者:
NURDEN, AT;CAEN, JP
通讯作者: CAEN, JP
推导的人羧肽酶 N 高分子量亚基的蛋白质序列揭示了富含亮氨酸的串联重复序列的存在。
DOI: --
发表时间: 1990
期刊: The Journal of biological chemistry
影响因子: --
作者:
Tan,F;Weerasinghe,DK;Skidgel,RA;Tamei,H;Kaul,RK;Roninson,IB;Schilling,JW;Erdös,EG
通讯作者: Erdös,EG
发展关系:动脉血小板粘附、糖蛋白 Ib 和富含亮氨酸的糖蛋白。
DOI: --
发表时间: 1991
期刊: Blood
影响因子: 20.3
作者:
Roth,GJ
通讯作者: Roth,GJ
DOI: --
发表时间: 1991
期刊: The Journal of biological chemistry
影响因子: --
作者:
Sugimoto,M;Mohri,H;McClintock,RA;Ruggeri,ZM
通讯作者: Ruggeri,ZM