Effects of temperature and Y21M mutation on conformational heterogeneity of the major coat protein (pVIII) of filamentous bacteriophage fd.
Effects of temperature and Y21M mutation on conformational heterogeneity of the major coat protein (pVIII) of filamentous bacteriophage fd.
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温度和Y21M突变对丝状噬菌体fd主要外壳蛋白(pVIII)构象异质性的影响。
DOI:
10.1006/jmbi.1998.2517
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发表时间:
1999
影响因子:
5.6
通讯作者:
Perham,RN
中科院分区:
文献类型:
--
作者:
Tan,WM;Jelinek,R;Opella,SJ;Malik,P;Terry,TD;Perham,RN
Solid-state NMR spectroscopy was used to analyze the conformational heterogeneity of the major coat protein (pVIII) of filamentous bacteriophage fd. Both one and two-dimensional solid-state NMR spectra of magnetically aligned samples of fd bacteriophage reveal that an increase in temperature and a single site substitution (Tyr21 to Met, Y21M) reduce the conformational heterogeneity observed throughout wild-type pVIII. The NMR results are consistent with previous studies indicating that conformational flexibility in the hinge-bend segment that links the amphipathic and hydrophobic helices in the membrane-bound form of the protein plays an essential role during phage assembly, which involves a major change in the tertiary, but not secondary, structure of the coat protein.
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