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Fig. 1 | BMC Microbiology

Fig. 1

From: The proteins of Fusobacterium spp. involved in hydrogen sulfide production from L-cysteine

Fig. 1

The protein expression of different bacterial strains grown in broth without cysteine was examined with gel electrophoresis. With Coomassie staining (a) all proteins were stained. However, the in-gel activity assay with bismuth staining (b) only detected the proteins that produced hydrogen sulfide (H2S) from cysteine. Sulfide from H2S reacted with bismuth and formed bismuth sulfide, a brown to black precipitate

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