Functional characterization of protein 4.1 homolog in amphioxus: defining a cryptic spectrin-actin-binding site.
Functional characterization of protein 4.1 homolog in amphioxus: defining a cryptic spectrin-actin-binding site.
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文昌鱼中蛋白质 4.1 同源物的功能表征:定义一个神秘的血影蛋白-肌动蛋白结合位点
DOI:
10.1038/srep02873
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发表时间:
2013-10-07
影响因子:
4.6
通讯作者:
Zhang S
中科院分区:
文献类型:
--
作者:
Wang L;Wang Y;Li Z;Gao Z;Zhang S
Vertebrate 4.1 proteins have a spectrin-actin-binding (SAB) domain, which is lacking in all the invertebrate 4.1 proteins indentified so far and it was therefore proposed that the SAB domain emerged with the advent of vertebrates during evolution. Here we demonstrated for the first time that amphioxus (an invertebrate chordate) protein 4.1, though lacking a recognizable SAB, was able to bind both spectrin and actin, with a binding capacity comparable to that of human protein 4.1. Detailed structure-activity analyses revealed that the unique domain U2/3 was a newly identified SAB-like domain capable of interacting with spectrin and actin, suggesting the presence of a “cryptic” SAB domain in amphioxus 4.1 protein. We also showed that amphioxus 4.1 protein gene was the common ancestor of vertebrate 4.1 protein genes, from which 4.1R, 4.1N, 4.1G and 4.1B genes originated. This work will encourage further study on the structure-activity of invertebrate 4.1 protein and its interacting proteins.
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影响因子:
1.7
作者:
Baines, A. J.
通讯作者:
Baines, A. J.
影响因子:
4
作者:
Liu, Mingying;Zhang, Shicui
通讯作者:
Zhang, Shicui
影响因子:
2.5
作者:
Taylor-Harris, PM;Keating, LA;Pinder, JC
通讯作者:
Pinder, JC
影响因子:
14.9
作者:
Chenna, R;Sugawara, H;Thompson, JD
通讯作者:
Thompson, JD
DOI:
10.1016/j.biocel.2006.09.013
发表时间:
2007-01-01
影响因子:
4
作者:
Fan, Chunxin;Zhang, Shicui;Saren, Gaowa
通讯作者:
Saren, Gaowa