Inert site in a protein zinc cluster: Isotope exchange by high resolution mass spectrometry
Inert site in a protein zinc cluster: Isotope exchange by high resolution mass spectrometry
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DOI:
10.1021/ja0284409
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发表时间:
2003-03-19
影响因子:
15
通讯作者:
Sadler, PJ
中科院分区:
文献类型:
--
作者:
Blindauer, CA;Polfer, NC;Sadler, PJ
Using electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry, we show that one Zn2+ion in the Zn4cluster of cyanobacterial metallothionein is inert to exchange with67Zn2+. We suggest that this is zinc in site A, which together with the surrounding α and β secondary structure forms a zinc-finger fold.