Staggering of subunits in NMDAR channels.
Staggering of subunits in NMDAR channels.
复制标题
NMDAR 通道中亚基的交错。
DOI:
10.1016/s0006-3495(02)75331-9
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发表时间:
2002
期刊:
影响因子:
--
通讯作者:
Wollmuth,LonnieP
中科院分区:
文献类型:
--
作者:
Sobolevsky,AlexanderI;Rooney,LeeAnn;Wollmuth,LonnieP
FunctionalN-methyl-d-aspartate receptors (NMDARs) are heteromultimers formed by NR1 and NR2 subunits. The M3 segment, as contributed by NR1, forms the core of the extracellular vestibule, including binding sites for channel blockers, and represents a critical molecular link between ligand binding and channel opening. Taking advantage of the substituted cysteine accessibility method along with channel block and multivalent coordination, we studied the contribution of the M3 segment in NR2C to the extracellular vestibule. We find that the M3 segment in NR2C, like that in NR1, contributes to the core of the extracellular vestibule. However, the M3 segments from the two subunits are staggered relative to each other in the vertical axis of the channel. Compared to NR1, homologous positions in NR2C, including those in the highly conserved SYTANLAAF motif, are located about four amino acids more externally. The staggering of subunits may represent a key structural feature underlying the distinct functional properties of NMDARs.
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影响因子:
5.3
作者:
Sobolevsky, AI;Koshelev, SG;Khodorov, BI
通讯作者:
Khodorov, BI
DOI:
10.1016/s0005-2736(98)00211-9
发表时间:
1999
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
A. Sobolevsky
通讯作者:
A. Sobolevsky
影响因子:
56.9
作者:
Rosenmund, C;Stern-Bach, Y;Stevens, CF
通讯作者:
Stevens, CF
影响因子:
5.5
作者:
BENVENISTE, M;MAYER, ML
通讯作者:
MAYER, ML
DOI:
10.1113/jphysiol.1996.sp021257
发表时间:
1996
期刊:
The Journal of Physiology
影响因子:
--
作者:
L. Wollmuth;T. Kuner;P. Seeburg;B. Sakmann
通讯作者:
B. Sakmann