Allosteric regulation controls actin-bundling properties of human plastins.
Allosteric regulation controls actin-bundling properties of human plastins.
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DOI:
10.1038/s41594-022-00771-1
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发表时间:
2022-06
影响因子:
16.8
通讯作者:
Kudryashov, Dmitri S.
中科院分区:
文献类型:
--
作者:
Schwebach, Christopher L.;Kudryashova, Elena;Agrawal, Richa;Zheng, Weili;Egelman, Edward H.;Kudryashov, Dmitri S.
Plastins/fimbrins are conserved actin-bundling proteins contributing to motility, cytokinesis, and other cellular processes by organizing strikingly different actin assemblies as in aligned bundles and branched networks. We propose that this ability of human plastins stems from an allosteric communication between their actin-binding domains (ABD1/2) engaged in a tight spatial association. Here we show that ABD2 can bind actin three orders of magnitude stronger than ABD1, unless the domains are involved in an equally strong inhibitory engagement. A mutation mimicking physiologically relevant phosphorylation at the ABD1-ABD2 interface greatly weakened their association, dramatically potentiating actin cross-linking. Cryo-EM reconstruction revealed the ABD1-actin interface and enabled modeling of the plastin bridge and domain separation in parallel bundles. We predict that a strong and tunable allosteric inhibition between the domains allows plastins to modulate the cross-linking strength, contributing to remodeling of actin assemblies of different morphologies defining the unique place of plastins in actin organization.
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影响因子:
64.5
作者:
Huttlin EL;Jedrychowski MP;Elias JE;Goswami T;Rad R;Beausoleil SA;Villén J;Haas W;Sowa ME;Gygi SP
通讯作者:
Gygi SP
影响因子:
64.8
作者:
Jumper J;Evans R;Pritzel A;Green T;Figurnov M;Ronneberger O;Tunyasuvunakool K;Bates R;Žídek A;Potapenko A;Bridgland A;Meyer C;Kohl SAA;Ballard AJ;Cowie A;Romera-Paredes B;Nikolov S;Jain R;Adler J;Back T;Petersen S;Reiman D;Clancy E;Zielinski M;Steinegger M;Pacholska M;Berghammer T;Bodenstein S;Silver D;Vinyals O;Senior AW;Kavukcuoglu K;Kohli P;Hassabis D
通讯作者:
Hassabis D
DOI:
10.1126/science.aab4090
发表时间:
2015-07-31
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Heisler DB;Kudryashova E;Grinevich DO;Suarez C;Winkelman JD;Birukov KG;Kotha SR;Parinandi NL;Vavylonis D;Kovar DR;Kudryashov DS
通讯作者:
Kudryashov DS
影响因子:
3.4
作者:
Aitken, Colin Echeverria;Marshall, R. Andrew;Puglisi, Joseph D.
通讯作者:
Puglisi, Joseph D.
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