putative cysteine [SW|ABC transporter ](ATP-binding protein)

putative cysteine [SW|ABC transporter ](ATP-binding protein), the [[gene|yxeK]]-[[gene|snaB]]-[[gene|yxeM]]-[[gene|yxeN]]-[[gene|yxeO]]-[[gene|sndB]]-[[gene|yxeQ ]]operon may be implicated in the utilization of a modified cysteine variant