Table 4.

Summed intensities (Sum) of unique peptides (proteotypicity = TRUE) detected for each myosin heavy chain (MYH) isoform that is indicative of fiber types (type I, type IIa, type IIb, and type IIx).

Protein	Peptide Sequence	Proteotypicity	Sum Type I (10 × 106)	Sum Type IIa (10 × 106)	Sum Type IIb (10 × 106)	Sum Type IIx (10 × 106)
MYH7	DTQIQLDDAVR	TRUE	226.57	45.22	0.00	0.00
MYH7	IEDEQALGSQLQK	TRUE	162.65	34.33	0.05	0.19
MYH7	ANDDLKENIAIVER	TRUE	137.41	27.70	0.01	0.01
MYH7	GQNVQQVSYAIGALAK	TRUE	80.46	15.95	0.04	0.03
MYH7	SLQSLLK	TRUE	74.67	15.45	0.02	0.03
Protein	Peptide Sequence	Proteotypicity	Sum Type I (10 × 106)	Sum Type IIa (10 × 106)	Sum Type IIb (10 × 106)	Sum Type IIx (10 × 106)
MYH2	LINDLTTQR	TRUE	95.23	216.18	8.32	14.98
MYH2	AAYLQGLNSADLLK	TRUE	77.60	179.82	8.17	11.76
MYH2	VLNASAIPEGQYIDSK	TRUE	74.62	173.66	6.23	11.20
MYH2	GQTVEQVTNAVGALAK	TRUE	39.80	106.67	3.76	7.45
MYH2	IEDEQAIGIQLQK	TRUE	25.58	71.06	2.53	5.65
Protein	Peptide Sequence	Proteotypicity	Sum Type I (10 × 106)	Sum Type IIa (10 × 106)	Sum Type IIb (10 × 106)	Sum Type IIx (10 × 106)
MYH4	VAEQELLDASER	TRUE	3.78	3.82	221.71	49.27
MYH4	LINELSTQK	TRUE	4.17	4.55	175.11	37.76
MYH4	AAYLTSLNSADLLK	TRUE	1.87	2.98	129.68	24.67
MYH4	LQDAEEHVEAVNSK	TRUE	1.42	1.34	75.10	17.27
MYH4	RVAEQELLDASER	TRUE	1.52	2.48	74.18	19.12
Protein	Peptide Sequence	Proteotypicity	Sum Type I (10 × 106)	Sum Type IIa (10 × 106)	Sum Type IIb (10 × 106)	Sum Type IIx (10 × 106)
MYH1	AAYLQNLNSADLLK	TRUE	14.02	20.54	25.48	122.96
MYH1	SALAHALQSSR	TRUE	14.19	20.28	17.76	97.12
MYH1	DSLVSQLSR	TRUE	8.37	11.42	13.79	49.63
MYH1	NAYEESLDHLETLKR	TRUE	4.60	6.71	8.68	41.85
MYH1	QLDEKDSLVSQLSR	TRUE	4.59	6.82	8.77	41.53