Lorio, Julio C Y4xP, an open reading frame located in a type III protein secretion system locus of Sinorhizobium fredii USDA257 and USDA191, encodes cysteine synthase. [electronic resource] - Molecular plant-microbe interactions : MPMI Jun 2006 - 635-43 p. digital Publication Type: Journal Article ISSN: 0894-0282 Standard No.: 10.1094/MPMI-19-0635 doi Subjects--Topical Terms: Amino Acid SequenceBacterial Proteins--geneticsCysteine Synthase--geneticsEscherichia coli--geneticsGene DosageGene Expression Regulation, BacterialGenetic Complementation TestGenistein--pharmacologyMolecular Sequence DataMutationOpen Reading FramesRecombinant Fusion Proteins--analysisSequence AlignmentSinorhizobium fredii--enzymologyGlycine max--microbiologySymbiosis--genetics