250 Million Years of Bindin Evolution

250 Million Years of Bindin Evolution
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2.5 亿年的 Bindin 进化

DOI:
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发表时间:
2003
期刊:
The Biological Bulletin
影响因子:
--
通讯作者:
H. Lessios
H. Lessios
中科院分区:
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文献类型:
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作者:
K. Zigler;H. Lessios

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结合蛋白在海胆(海胆)的精卵附着和融合中起着核心作用。先前的研究确定了棘总科的两个目中结合蛋白的DNA序列,占所有棘属物种的10%。我们报告的成熟bindin的序列从另外五个属,代表四个新的订单,包括远亲沙美元,心脏海胆,铅笔海胆。目前已知的六个目中有70%的海胆都含有结合蛋白,这表明结合蛋白在2.5亿年前就存在于所有现存海胆的共同祖先中。在这段进化时间内,(1)结合蛋白的核心区域有显著的保守性,特别是在一段29个氨基酸的区域,它根本没有变化;(2)在前原结合蛋白和成熟结合蛋白之间的切割位点的碱性氨基酸基序的保守性;(3)成熟结合蛋白的长度有两倍以上的变化;和(4)在核心外的序列中出现高度变异,包括在某些顺序的结合蛋白中插入富含甘氨酸的重复序列,但不是其他顺序。
Bindin plays a central role in sperm-egg attachment and fusion in sea urchins (echinoids). Previous studies determined the DNA sequence of bindin in two orders of the class Echinoidea, representing 10% of all echinoid species. We report sequences of mature bindin from five additional genera, representing four new orders, including the distantly related sand dollars, heart urchins, and pencil urchins. The six orders in which bindin is now known include 70% of all echinoids, and indicate that bindin was present in the common ancestor of all extant sea urchins more than 250 million years ago. Over this span of evolutionary time there has been (1) remarkable conservation in the core region of bindin, particularly in a stretch of 29 amino acids that has not changed at all; (2) conservation of a motif of basic amino acids at the cleavage site between preprobindin and mature bindin; (3) more than a twofold change in length of mature bindin; and (4) emergence of high variation in the sequences outside the core, including the insertion of glycine-rich repeats in the bindins of some orders, but not others.
DOI: 10.1093/oxfordjournals.molbev.a040200
发表时间: 1995-03
影响因子: 10.7
作者:
Youn-Ho Lee;Tatsuya Ota;V. D. Vacquier
通讯作者: Youn-Ho Lee;Tatsuya Ota;V. D. Vacquier
DOI: 10.1073/pnas.95.18.10676
发表时间: 1998-09-01
影响因子: 11.1
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DOI: 10.1073/pnas.89.6.2002
发表时间: 1992-03-15
影响因子: 11.1
作者:
BRENDEL, V;BUCHER, P;KARLIN, S
通讯作者: KARLIN, S
DOI: 10.1083/jcb.113.3.615
发表时间: 1991-05
期刊: The Journal of cell biology
影响因子: --
作者:
Sakakibara H;Mitchell DR;Kamiya R
通讯作者: Kamiya R
海胆属异域物种的线粒体 DNA 和结合蛋白基因序列进化。
DOI: 10.1093/oxfordjournals.molbev.a025914
发表时间: 1998
影响因子: 10.7
作者:
Metz,EC;Gómez-Gutiérrez,G;Vacquier,VD
通讯作者: Vacquier,VD