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
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发表时间:
1993
期刊:
影响因子:
--
通讯作者:
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
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
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影响因子:
20.3
作者:
M. Berndt;C. Gregory;B. Chong;H. Zola;P. Castaldi
通讯作者:
P. Castaldi
影响因子:
64.8
作者:
NURDEN, AT;CAEN, JP
通讯作者:
CAEN, JP
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
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