The middle lipin domain adopts a membrane-binding dimeric protein fold.
The middle lipin domain adopts a membrane-binding dimeric protein fold.
复制标题
DOI:
10.1038/s41467-021-24929-5
复制
发表时间:
2021-08-05
影响因子:
16.6
通讯作者:
Airola MV
中科院分区:
文献类型:
--
作者:
Gu W;Gao S;Wang H;Fleming KD;Hoffmann RM;Yang JW;Patel NM;Choi YM;Burke JE;Reue K;Airola MV
Phospholipid synthesis and fat storage as triglycerides are regulated by lipin phosphatidic acid phosphatases (PAPs), whose enzymatic PAP function requires association with cellular membranes. Using hydrogen deuterium exchange mass spectrometry, we find mouse lipin 1 binds membranes through an N-terminal amphipathic helix, the Ig-like domain and HAD phosphatase catalytic core, and a middle lipin (M-Lip) domain that is conserved in mammalian and mammalian-like lipins. Crystal structures of the M-Lip domain reveal a previously unrecognized protein fold that dimerizes. The isolated M-Lip domain binds membranes both in vitro and in cells through conserved basic and hydrophobic residues. Deletion of the M-Lip domain in lipin 1 reduces PAP activity, membrane association, and oligomerization, alters subcellular localization, diminishes acceleration of adipocyte differentiation, but does not affect transcriptional co-activation. This establishes the M-Lip domain as a dimeric protein fold that binds membranes and is critical for full functionality of mammalian lipins. Lipins need to bind cell membranes before they can function as phosphatidic acid phosphatases. Here, the authors elucidate the structural basis of lipin membrane-association and identify a lipin domain with a novel protein fold that is critical for membrane binding and full functionality of lipins.
登录
查看更多内容
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
影响因子:
4
作者:
Ferguson, PJ;Chen, S;El-Shanti, H
通讯作者:
El-Shanti, H
DOI:
10.1021/jasms.0c00283
发表时间:
2020-10-07
影响因子:
3.2
作者:
Dobbs, Joseph M.;Jenkins, Meredith L.;Burke, John E.
通讯作者:
Burke, John E.
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH
影响因子:
10.9
作者:
Harris, Thurl E.;Finck, Brian N.
通讯作者:
Finck, Brian N.