Table 1.

Proteins identified from extracts of liver from Rana sylvatica that were more abundant in summer than in winter.

GI	Protein	AR 1	Species	Function
129730	protein disulfide isomerase precursor	2.34	Oryctolagus cuniculus	protein folding
9755362	acetaldehyde dehydrogenase	2.28	Mus musculus	alcohol metabolism
85719973	peptidylprolyl isomerase B	2.22	Ictalurus punctatus	protein folding
57087309	mRNA transport regulator 3	1.74	Canis familiaris	protein synthesis
47498070	aspartate aminotransferase 1	1.68	Xenopus tropicalis	amino acid metabolism
146415164	RNA recognition motif (hypothetical)	1.65	Pichia guilliermondii	protein synthesis
5921957	carbamoyl-phosphate synthase I	1.53	Rana catesbeiana	urea metabolism
148226795	binding immunoglobulin protein (BiP)	1.51	Xenopus laevis	protein folding/stress
121594245	protein DUF891	1.51	Acidovorax sp.	unknown
47210694	glutamate dehydrogenase 1	1.49	Tetraodon nigroviridis	nitrogen metabolism
45383354	histidine ammonia-lyase	1.38	Gallus gallus	amino acid metabolism
124266729	acetyl-CoA C-acetyltransferase 1	1.34	Methylibium petroleiphilum	protein/lipid metabolism
58332740	aconitase 2	1.33	Xenopus tropicalis	TCA cycle
148230238	homogentisate 1,2-dioxygenase	1.32	Xenopus laevis	amino acid metabolism
126632707	long-chain acyl-CoA dehydrogenase	1.26	Danio rerio	fatty acid metabolism
50417404	alanine-glyoxylate aminotransferase	1.24	Xenopus laevis	amino acid metabolism
56377788	elongation factor 1-α	1.22	Pelodiscus sinensis	protein synthesis
89886140	phosphoenolpyruvate carboxykinase 1	1.21	Xenopus tropicalis	gluconeogenesis

¹AR, abundance ratio: protein abundance in summer frogs relative to that in winter frogs.