A novel approach to identify proteins modified by nitric oxide: the HIS-TAG switch method

被引:67
作者
Camerini, Serena
Polci, Maria L.
Restuccia, Umberto
Usuelli, Vera
Malgaroli, Antonio
Bachi, Angela
机构
[1] Ist Sci San Raffaele, DIBIT, Mass Spectrometry Unit, I-20132 Milan, Italy
[2] Univ Vita Salute San Raffaele, I-20132 Milan, Italy
关键词
S-nitrosylation; proteomics; mass spectrometry; post-translational modifications; nitric oxide;
D O I
10.1021/pr0701456
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
S-nitrosylation is emerging as an important signaling mechanism that regulates a broad range of cellular functions. The recognition of Cysteine residues that undergo S-nitrosylation is crucial to elucidate how this modification modulates protein activity. We report here a novel strategy, defined His-tag switch, which allows the purification and identification of S-nitrosylated proteins and the unambiguous localization of the modified cysteine residues by mass spectrometry analysis.
引用
收藏
页码:3224 / 3231
页数:8
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