Pu-Erh Tea Extract Induces the Degradation of FET Family Proteins Involved in the Pathogenesis of Amyotrophic Lateral Sclerosis

Table 2

Identification of the PTE binding protein based on peptide fragments produced by MAILDI-TOF MS.

Peptide	Start–end	Observed	Mr (expt.)	Mr (calc.)	Delta 𝑀
K.KTGQPMINLYTDR.E	90–102	1536.7841	1535.7768	1535.7766	0.0002
K.KTGQPMINLYTDR.E + oxidation (M)	90–102	1552.7707	1551.7635	1551.7715	−0.0080
K.TGQPMINLYTDR.E	90–102	1408.7088	1407.7015	1407.6816	0.0199
K.TGQPMINLYTDRETGK.L	91–106	1823.8919	1822.8847	1822.8883	−0.0037
K.LKGEATVSFDDPPSAK.A	107–122	1661.8517	1660.8444	1660.8308	0.0136
K.AAIDWFDGKEFSGNPIK.V	123–139	1894.9324	1893.9251	1893.9261	−0.0010
K.CPNPTCENMNFSWP.N	202–215	1698.6680	1697.6608	1697.6749	−0.0141
K.APKPDGPGGGPGGSHMGGNYGDDR.R	223–246	2252.9478	2251.9406	2251.9665	−0.0259
NCBI database		GI:62087384