O18Quant: A Semiautomatic Strategy for Quantitative Analysis of High-Resolution ¹⁶O/¹⁸O Labeled Data

Table 1

Identified and quantified proteins from three known-ratio samples.

Sample	Identified peptides	Identified proteins	Identified unique 2 proteins*	Quantified peptides	Quantified proteins	Quantified unique 2 proteins*
O18/O16 = 1 : 1	752	257	138	726	251	138
O18/O16 = 1 : 2	993	325	180	961	315	180
O18/O16 = 2 : 1	813	281	162	779	272	162

∗Unique 2 protein means that protein was identified with at least two unique peptides.