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    • 31. 发明授权
    • Peptide standards
    • 肽标准
    • US08361740B2
    • 2013-01-29
    • US12597872
    • 2008-05-02
    • Charles TurnerRaymond Neil Dalton
    • Charles TurnerRaymond Neil Dalton
    • C12Q1/37A61K38/04C07K5/00C07K7/00C07K16/00C07K17/00
    • G01N33/6848C07B59/008C07K14/76
    • The invention relates to methods for making a peptide standard for mass spectrometry said method comprising (a) identifying endopeptidase cleavage sites in a parent polypeptide sequence of interest; (b) selecting peptide sequences from said parent polypeptide which are defined by endopeptidase cleavage sites of step (a); (c) adding a C-terminal extension to each selected sequence; wherein if the endopeptidase cleavage site is C-terminal to its recognition sequence then the C-terminal extension comprises 1 to 6 amino acids, wherein if the endopeptidase cleavage site is N-terminal to its recognition sequence then the C-terminal extension comprises said recognition sequence, wherein if the endopeptidase cleavage site is within its recognition sequence then the C-terminal extension comprises the remainder of said recognition sequence C-terminal to the cleavage site; and (d) synthesizing a peptide having the extended amino acid sequence of step (c). The invention also relates to peptide standards and methods of analysing samples.
    • 本发明涉及制备用于质谱的肽标准物的方法,所述方法包括(a)鉴定感兴趣的亲本多肽序列中的内肽酶切割位点; (b)选择由步骤(a)的内肽酶切割位点定义的所述亲本多肽的肽序列; (c)向每个选择的序列添加C-末端延伸; 其中如果内肽酶切割位点是其识别序列的C-末端,则C-末端延伸包含1-6个氨基酸,其中如果内肽酶切割位点是其识别序列的N末端,那么C-末端延伸包括所述识别 序列,其中如果内肽酶切割位点在其识别序列内,那么C末端延伸包括切割位点C末端的所述识别序列的剩余部分; 和(d)合成具有步骤(c)的延伸氨基酸序列的肽。 本发明还涉及分析样品的肽标准和方法。