Extension of the classical classification of β-turns.
Extension of the classical classification of β-turns.
复制标题
DOI:
10.1038/srep33191
复制
发表时间:
2016-09-15
影响因子:
4.6
通讯作者:
de Brevern AG
中科院分区:
文献类型:
--
作者:
de Brevern AG
The functional properties of a protein primarily depend on its three-dimensional (3D) structure. These properties have classically been assigned, visualized and analysed on the basis of protein secondary structures. The β-turn is the third most important secondary structure after helices and β-strands. β-turns have been classified according to the values of the dihedral angles φ and ψ of the central residue. Conventionally, eight different types of β-turns have been defined, whereas those that cannot be defined are classified as type IV β-turns. This classification remains the most widely used. Nonetheless, the miscellaneous type IV β-turns represent 1/3rd of β-turn residues. An unsupervised specific clustering approach was designed to search for recurrent new turns in the type IV category. The classical rules of β-turn type assignment were central to the approach. The four most frequently occurring clusters defined the new β-turn types. Unexpectedly, these types, designated IV1, IV2, IV3 and IV4, represent half of the type IV β-turns and occur more frequently than many of the previously established types. These types show convincing particularities, in terms of both structures and sequences that allow for the classical β-turn classification to be extended for the first time in 25 years.
登录
查看更多内容
影响因子:
4.8
作者:
Becker, A;Kabsch, W
通讯作者:
Kabsch, W
影响因子:
4.8
作者:
de Sanctis, D;Dewilde, S;Bolognesi, M
通讯作者:
Bolognesi, M
影响因子:
14.9
作者:
Kruus E;Thumfort P;Tang C;Wingreen NS
通讯作者:
Wingreen NS
影响因子:
14.9
作者:
Bonet J;Planas-Iglesias J;Garcia-Garcia J;Marín-López MA;Fernandez-Fuentes N;Oliva B
通讯作者:
Oliva B
DOI:
10.1002/(sici)1097-0134(19981101)33:2
发表时间:
1998-11-01
期刊:
PROTEINS-STRUCTURE FUNCTION AND GENETICS
影响因子:
--
作者:
Creamer, TP
通讯作者:
Creamer, TP