Sphingobium indicum B90A chromosome, sul1 is cis-regulatory element that is thought to sense ions involved in sulfur or methionine metabolism; they are found in alphaproteobacteria.
Sphingobium indicum B90A plasmid pSRL1, complete sequence.
Sphingobium indicum B90A plasmid pSRL3, complete sequence.
Sphingobium indicum B90A plasmid pSRL2, complete sequence.