Molecular mechanism of poly(ADP-ribosyl)ation by PARP1 and identification of lysine residues as ADP-ribose acceptor sites.
Molecular mechanism of poly(ADP-ribosyl)ation by PARP1 and identification of lysine residues as ADP-ribose acceptor sites.
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DOI:
10.1093/nar/gkp229
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发表时间:
2009-06
影响因子:
14.9
通讯作者:
Hottiger MO
中科院分区:
文献类型:
--
作者:
Altmeyer M;Messner S;Hassa PO;Fey M;Hottiger MO
Poly(ADP-ribose) polymerase 1 (PARP1) synthesizes poly(ADP-ribose) (PAR) using nicotinamide adenine dinucleotide (NAD) as a substrate. Despite intensive research on the cellular functions of PARP1, the molecular mechanism of PAR formation has not been comprehensively understood. In this study, we elucidate the molecular mechanisms of poly(ADP-ribosyl)ation and identify PAR acceptor sites. Generation of different chimera proteins revealed that the amino-terminal domains of PARP1, PARP2 and PARP3 cooperate tightly with their corresponding catalytic domains. The DNA-dependent interaction between the amino-terminal DNA-binding domain and the catalytic domain of PARP1 increased Vmax and decreased the Km for NAD. Furthermore, we show that glutamic acid residues in the auto-modification domain of PARP1 are not required for PAR formation. Instead, we identify individual lysine residues as acceptor sites for ADP-ribosylation. Together, our findings provide novel mechanistic insights into PAR synthesis with significant relevance for the different biological functions of PARP family members.
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影响因子:
2.9
作者:
CERVANTESLAUREAN, D;MINTER, DE;JACOBSON, MK
通讯作者:
JACOBSON, MK
DOI:
10.1016/0167-4838(91)99007-f
发表时间:
1991-06-24
期刊:
BIOCHIMICA ET BIOPHYSICA ACTA
影响因子:
--
作者:
DESMARAIS, Y;MENARD, L;POIRIER, GG
通讯作者:
POIRIER, GG
DOI:
10.1016/j.biocel.2008.03.008
发表时间:
2008-01-01
影响因子:
4
作者:
Haenni, Sandra S.;Hassa, Paul O.;Hottiger, Michael O.
通讯作者:
Hottiger, Michael O.
DOI:
10.1073/pnas.1633591100
发表时间:
2003-08-05
影响因子:
11.1
作者:
Fjeld, CC;Birdsong, WT;Goodman, RH
通讯作者:
Goodman, RH
影响因子:
4
作者:
Augustin, A;Spenlehauer, C;de Murcia, G
通讯作者:
de Murcia, G