Conformational flexibility of the oncogenic protein LMO2 primes the formation of the multi-protein transcription complex.
Conformational flexibility of the oncogenic protein LMO2 primes the formation of the multi-protein transcription complex.
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致癌蛋白LMO2素的构象柔韧性形成了多蛋白转录复合物的形成。
DOI:
10.1038/srep03643
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发表时间:
2014-01-10
影响因子:
4.6
通讯作者:
Rabbitts TH
中科院分区:
文献类型:
--
作者:
Sewell H;Tanaka T;El Omari K;Mancini EJ;Cruz A;Fernandez-Fuentes N;Chambers J;Rabbitts TH
LMO2 was discovered via chromosomal translocations in T-cell leukaemia and shown normally to be essential for haematopoiesis. LMO2 is made up of two LIM only domains (thus it is a LIM-only protein) and forms a bridge in a multi-protein complex. We have studied the mechanism of formation of this complex using a single domain antibody fragment that inhibits LMO2 by sequestering it in a non-functional form. The crystal structure of LMO2 with this antibody fragment has been solved revealing a conformational difference in the positioning and angle between the two LIM domains compared with its normal binding. This contortion occurs by bending at a central helical region of LMO2. This is a unique mechanism for inhibiting an intracellular protein function and the structural contusion implies a model in which newly synthesized, intrinsically disordered LMO2 binds to a partner protein nucleating further interactions and suggests approaches for therapeutic targeting of LMO2.
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影响因子:
3
作者:
Flores SC;Lu LJ;Yang J;Carriero N;Gerstein MB
通讯作者:
Gerstein MB
影响因子:
5.8
作者:
Fernandez-Fuentes, Narcis;Rai, Brajesh K.;Fiser, Andras
通讯作者:
Fiser, Andras
影响因子:
2.7
作者:
Kowalski, K;Czolij, R;Mackay, JP
通讯作者:
Mackay, JP
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:
10.1107/s0907444904016427
发表时间:
2004-12-01
影响因子:
2.2
作者:
Blanc, E;Roversi, P;Bricogne, G
通讯作者:
Bricogne, G