The native-state ensemble of proteins provides clues for folding, misfolding and function

被引:23
作者
Cremades, Nunilo
Sancho, Javier
Freire, Ernesto [1 ]
机构
[1] Johns Hopkins Univ, Dept Biol, Baltimore, MD 21218 USA
[2] Univ Zaragoza, Dept Biochem, E-50009 Zaragoza, Spain
[3] Univ Zaragoza, BIFI, E-50009 Zaragoza, Spain
关键词
D O I
10.1016/j.tibs.2006.07.001
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The predominant equilibrium in proteins is not between native and unfolded states, it is between the native and multiple partially unfolded forms. Some of these partially unfolded forms can be energetically close to the native state and, therefore, have the potential to become appreciably populated. This could have an important role in protein function or misfolding diseases. The recent identification and characterization of the partially unfolded forms of apoflavodoxin furthers our understanding of their formation.
引用
收藏
页码:494 / 496
页数:3
相关论文
共 15 条
[1]   PROTEIN-FOLDING INTERMEDIATES - NATIVE-STATE HYDROGEN-EXCHANGE [J].
BAI, YW ;
SOSNICK, TR ;
MAYNE, L ;
ENGLANDER, SW .
SCIENCE, 1995, 269 (5221) :192-197
[2]   The folding energy landscape of apoflavodoxin is rugged: Hydrogen exchange reveals nonproductive misfolded intermediates [J].
Bollen, YJM ;
Kamphuis, MB ;
van Mierlo, CPM .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2006, 103 (11) :4095-4100
[3]   Protein topology affects the appearance of intermediates during the folding of proteins with a flavodoxin-like fold [J].
Bollen, YJM ;
van Mierlo, CPM .
BIOPHYSICAL CHEMISTRY, 2005, 114 (2-3) :181-189
[4]   Formation of on- and off-pathway intermediates in the folding kinetics of Azotobacter vinelandii apoflavodoxin [J].
Bollen, YJM ;
Sánchez, IE ;
van Mierlo, CPM .
BIOCHEMISTRY, 2004, 43 (32) :10475-10489
[5]   Topological and energetic factors: What determines the structural details of the transition state ensemble and "en-route" intermediates for protein folding? An investigation for small globular proteins [J].
Clementi, C ;
Nymeyer, H ;
Onuchic, JN .
JOURNAL OF MOLECULAR BIOLOGY, 2000, 298 (05) :937-953
[6]  
EDSALL JT, 1995, ADV PROTEIN CHEM, V46, P1, DOI 10.1016/S0065-3233(08)60329-0
[7]   Protein folding intermediates and pathways studied by hydrogen exchange [J].
Englander, SW .
ANNUAL REVIEW OF BIOPHYSICS AND BIOMOLECULAR STRUCTURE, 2000, 29 :213-238
[8]   Apoflavodoxin folding mechanism:: An α/β protein with an essentially off-pathway lntermediate [J].
Fernández-Recio, J ;
Genzor, CG ;
Sancho, J .
BIOCHEMISTRY, 2001, 40 (50) :15234-15245
[9]   Structure-based calculation of the equilibrium folding pathway of proteins. Correlation with hydrogen exchange protection factors [J].
Hilser, VJ ;
Freire, E .
JOURNAL OF MOLECULAR BIOLOGY, 1996, 262 (05) :756-772
[10]   Folding units govern the cytochrome c alkaline transition [J].
Hoang, L ;
Maity, H ;
Krishna, MMG ;
Lin, Y ;
Englander, SW .
JOURNAL OF MOLECULAR BIOLOGY, 2003, 331 (01) :37-43