Crystal and solution structures of a prokaryotic M16B peptidase: an open and shut case.

Crystal and solution structures of a prokaryotic M16B peptidase: an open and shut case.
复制标题

DOI:
10.1016/j.str.2009.09.009
复制
发表时间:
2009-11-11
期刊:
Structure (London, England : 1993)
影响因子:
--
通讯作者:
Smith JW
Smith JW
中科院分区:
其他
文献类型:
--
作者:
Aleshin AE;Gramatikova S;Hura GL;Bobkov A;Strongin AY;Stec B;Tainer JA;Liddington RC;Smith JW

文献摘要

参考文献

被引文献

相似文献

锌肽酶的M16家族包含一对同源结构域,其形成围绕活性位点的“蛤壳”的两半。M16 A和M16 C亚家族形成一类(“肽酶体”):它们降解30-70个残基的肽,并采用开放和闭合构象。真核生物M16 B亚家族形成第二类(“加工蛋白酶”):它们采用单一的部分开放构象,使它们能够从较大的蛋白质中切割信号序列。在这里,我们报告的解决方案和晶体结构的原核M16 B肽酶,并证明它具有这两个类的功能:因此,它在溶液中形成稳定的“开放”的同源二聚体,类似于加工蛋白酶,但蛤壳关闭后结合底物,M16 A/C肽酶体的功能。此外,蛋白水解活性需要蛤壳闭合。我们预测,其他原核M16 B家族成员将形成二聚体肽酶体,并提出了一个模型的M16家族的进化。
The M16 family of zinc peptidases comprises a pair of homologous domains that form two halves of a ‘‘clam-shell’’ surrounding the active site. The M16A and M16C subfamilies form one class (‘‘peptidasomes’’): they degrade 30–70 residue peptides, and adopt both open and closed conformations. The eukaryotic M16B subfamily forms a second class (‘‘processing proteases’’): they adopt a single partly-open conformation that enables them to cleave signal sequences from larger proteins. Here, we report the solution and crystal structures of a prokaryotic M16B peptidase, and demonstrate that it has features of both classes: thus, it forms stable ‘‘open’’ homodimers in solution that resemble the processing proteases; but the clam-shell closes upon binding substrate, a feature of the M16A/C peptidasomes. Moreover, clam-shell closure is required for proteolytic activity. We predict that other prokaryotic M16B family members will form dimeric peptidasomes, and propose a model for the evolution of the M16 family.
DOI: 10.1371/journal.pone.0005274
发表时间: 2009
期刊: PloS one
影响因子: 3.7
作者:
Cabrol C;Huzarska MA;Dinolfo C;Rodriguez MC;Reinstatler L;Ni J;Yeh LA;Cuny GD;Stein RL;Selkoe DJ;Leissring MA
通讯作者: Leissring MA
DOI: 10.1107/s0907444904019158
发表时间: 2004-12-01
影响因子: 2.2
作者:
Emsley, P;Cowtan, K
通讯作者: Cowtan, K
DOI: 10.1074/jbc.274.45.32411
发表时间: 1999-11-05
影响因子: 4.8
作者:
Eggleson, KK;Duffin, KL;Goldberg, DE
通讯作者: Goldberg, DE
DOI: 10.1107/s0021889803012779
发表时间: 2003-10-01
影响因子: 6.1
作者:
Konarev, PV;Volkov, VV;Svergun, DI
通讯作者: Svergun, DI
DOI: 10.1128/jvi.78.18.9947-9953.2004
发表时间: 2004-09-01
影响因子: 5.4
作者:
Hedengren-Olcott, M;Byrd, CM;Hruby, DE
通讯作者: Hruby, DE