E2-RING expansion of the NEDD8 cascade confers specificity to cullin modification.
E2-RING expansion of the NEDD8 cascade confers specificity to cullin modification.
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DOI:
10.1016/j.molcel.2009.01.011
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发表时间:
2009-02-27
期刊:
影响因子:
16
通讯作者:
Schulman, Brenda A.
中科院分区:
文献类型:
--
作者:
Huang, Danny T.;Ayrault, Olivier;Hunt, Harold W.;Taherbhoy, Asad M.;Duda, David M.;Scott, Daniel C.;Borg, Laura A.;Neale, Geoffrey;Murray, Peter J.;Roussel, Martine F.;Schulman, Brenda A.
Ubiquitin and ubiquitin-like proteins (UBLs) are directed to targets by cascades of E1, E2, and E3 enzymes. The largest ubiquitin E3 subclass consists of cullin-RING ligases (CRLs), which contain one each of several cullins (CUL1, 2, 3, 4, or 5) and RING proteins (RBX1 or 2). CRLs are activated by ligation of the UBL NEDD8 to a conserved cullin Lys. How is cullin NEDD8ylation specificity established? Here we report that like UBE2M (aka UBC12), the previously uncharacterized E2 UBE2F is a NEDD8 conjugating enzyme in vitro and in vivo. Biochemical and structural analyses indicate how plasticity of hydrophobic E1–E2 interactions and E1 conformational flexibility allow one E1 to charge multiple E2s. The E2s have distinct functions, with UBE2M/RBX1 and UBE2F/RBX2 displaying different target cullin specificities. Together, these studies reveal the molecular basis for and functional importance of hierarchical expansion of the NEDD8 conjugation system in establishing selective CRL activation.
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影响因子:
64.5
作者:
Duda, David M.;Borg, Laura A.;Scott, Daniel C.;Hunt, Harold W.;Hammel, Michal;Schulman, Brenda A.
通讯作者:
Schulman, Brenda A.
影响因子:
4.8
作者:
Durfee, Larissa A.;Kelley, Melissa L.;Huibregtse, Jon M.
通讯作者:
Huibregtse, Jon M.
影响因子:
4.8
作者:
Amir, RE;Iwai, K;Ciechanover, A
通讯作者:
Ciechanover, A
影响因子:
16
作者:
Huang, DT;Paydar, A;Schulman, BA
通讯作者:
Schulman, BA
影响因子:
11.4
作者:
Johnson, ES;Schwienhorst, I;Blobel, G
通讯作者:
Blobel, G