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. 2017 May 25;12:1549–1564. doi: 10.2147/COPD.S137806

Figure 2.

Figure 2

Identification of THBG by iTRAQ.

Notes: (A) Representative MS/MS (–GWVDLFVPK–) spectra of THBG; 5 typical y-ions and 7 b-ions were identified by iTRAQ, as presented in the upper panel. (B) Four COPD samples were labeled by reporter ions 113, 115, 118, and 119; 4 controls were labeled by reporter ions 114, 116, 117, and 121. Relative intensity represents the relative abundance of THBG in the samples.

Abbreviations: COPD, chronic obstructive pulmonary disease; iTRAQ, isobaric tags for relative and absolute quantification; MS/MS, tandem mass spectrometry; THBG, thyroxine-binding globulin.