Effective strategy to assign ¹H- ¹⁵N heteronuclear correlation NMR signals from lysine side-chain NH3₃⁺ groups of proteins at low temperature.
Effective strategy to assign ¹H- ¹⁵N heteronuclear correlation NMR signals from lysine side-chain NH3₃⁺ groups of proteins at low temperature.
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DOI:
10.1007/s10858-014-9854-y
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发表时间:
2014-09
影响因子:
2.7
通讯作者:
Iwahara J
中科院分区:
文献类型:
--
作者:
Esadze A;Zandarashvili L;Iwahara J
Recent studies have shown that lysine side-chain NH3+ groups are excellent probes for NMR investigations of dynamics involving hydrogen bonds and ion pairs relevant to protein function. However, due to rapid hydrogen exchange, observation of 1H-15N NMR cross peaks from lysine NH3+ groups often requires use of a relatively low temperature, which renders difficulty in resonance assignment. Here we present an effective strategy to assign 1H and 15N resonances of NH3+ groups at low temperatures. This strategy involves two new 1H/13C/15N triple-resonance experiments for lysine side chains. Application to a protein-DNA complex is demonstrated.
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影响因子:
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作者:
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通讯作者:
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