Table 3. Biological processes related to differentially abundant proteins and phosphoproteins in the Longissimus lumborum muscle of Angus and Nellore bulls.

Protein ID	ABVa	Biological process described in UniProtb
14-3-3 protein épsilon	YWHAE	Negative regulation of peptidyl-serine dephosphorylation; Protein targeting; Regulation of membrane repolarization; Regulation of potassium ion transmembrane transporter activity
Prohibitin	PHB	DNA biosynthetic process; Mitochondrion organization; Negative regulation of protein catabolic process; Negative regulation of transcription by competitive promoter binding; Protein stabilization
Stress-70 protein, mitochondrial	HSPA9	Protein export from nucleus; Protein folding
Uncharacterized protein	HSPA6	Cellular response to heat; Protein refolding
78 kDa glucose-regulated protein	HSPA5	Maintenance of protein localization in endoplasmic reticulum
Malate dehydrogenase, cytoplasmic	MDH1	Carbohydrate metabolic process; Malate metabolic process; NADH metabolic process; Oxaloacetate metabolic process; Tricarboxylic acid cycle
Alpha-enolase	ENO1	Glycolytic process
Phosphoglucomutase-1	PGM1	Glucose metabolic process; Glycogen biosynthetic process
Triosephosphate isomerase	TPI1	Gluconeogenesis; Glyceraldehyde-3-phosphate biosynthetic process; Glycerol catabolic process; Glycolytic process; Pentose-phosphate shunt
Myosin light chain 3	MYL3	Regulation of striated muscle contraction
Myosin light chain 1/3	MYL1	Muscle contraction
Myosin regulatory light chain 2	MYLPF	Skeletal muscle tissue development
Alpha actin 1	ACTA1	Positive regulation of gene expression; Skeletal muscle fiber development; Skeletal muscle thin filament assembly
Tropomyosin alpha-1 chain	TPM1	Regulation of striated muscle contraction;
Troponin T	TNNT3	Regulation of ATPase activity; Regulation of striated muscle contraction; Skeletal muscle contraction

^aProtein abbreviation is in accordance with gene abbreviation in UniProt

^bInformation obtained through UniProt accession numbers shown in Tables 1 and 2