Conservation of protein structure over four billion years.
Conservation of protein structure over four billion years.
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DOI:
10.1016/j.str.2013.06.020
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发表时间:
2013-09-03
期刊:
影响因子:
5.7
通讯作者:
Gavira, Jose A.
中科院分区:
文献类型:
--
作者:
Ingles-Prieto, Alvaro;Ibarra-Molero, Beatriz;Delgado-Delgado, Asuncion;Perez-Jimenez, Raul;Fernandez, Julio M.;Gaucher, Eric A.;Sanchez-Ruiz, Jose M.;Gavira, Jose A.
Little is known with certainty about the evolution of protein structures in general and the degree of protein structure conservation over planetary time scales in particular. Here we report the X-ray crystal structures of seven laboratory resurrections of Precambrian thioredoxins dating back up to ~4 billion years before present. Despite considerable sequence differences compared with extant enzymes, the ancestral proteins display the canonical thioredoxin fold while only small structural changes have occurred over 4 billion years. This remarkable degree of structure conservation since a time near the last common ancestor of life supports a punctuated-equilibrium model of structure evolution in which the generation of new folds occurs over comparatively short periods of time and is followed by long periods of structural stasis.
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DOI:
10.1107/s0907444905036693
发表时间:
2006-01-01
影响因子:
2.2
作者:
Evans, P
通讯作者:
Evans, P
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
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通讯作者:
Cowtan, K
DOI:
10.1002/prot.340230412
发表时间:
1995-12-01
期刊:
PROTEINS-STRUCTURE FUNCTION AND GENETICS
影响因子:
--
作者:
Frishman, D;Argos, P
通讯作者:
Argos, P
影响因子:
2.9
作者:
Hebert, EJ;Giletto, A;Pace, CN
通讯作者:
Pace, CN
影响因子:
1.9
作者:
Costantini S;Colonna G;Facchiano AM
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