Table 1.

Proteins detected in membrane protein bands that were more prominent when S. wolfei was grown syntrophically on butyrate.

Band	Locus tag	Protein	Number of unique peptides	Score
A34	SWOL_RS09950	HydA2	5	196
	SWOL_RS09960	HydC2	2+	33
B12	SWOL_RS09950	HydA2	41	1208
	SWOL_RS09955	HydB2	10	379
	SWOL_RS03515	EtfB2	2	151
	SWOL_RS03525	FeS oxidoreductase	2	106
	SWOL_RS12360	ATP synthase (alpha)	10	197
	SWOL_RS00720	S layer protein	6	311