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Proteome nameRhizobium meliloti - Reference proteome
Proteome IDiUP000001976
Taxonomy266834 - Rhizobium meliloti (strain 1021)
Last modifiedFebruary 4, 2017
Genome assembly and annotationi GCA_000006965.1 from ENA/EMBL
Pan proteomei This proteome is part of the Rhizobium meliloti pan proteome (fasta)

Gram-negative nitrogen-fixing bacteria living in soil and able to establish a symbiosis with host plants from the genera Medicago, Melilotus and Trigonella leading to the formation of nodules on roots. Its genome contains three replicons, a chromosome and two plasmids. Strain 1021 is a commonly used laboratory strain.

Strain Sm1021 is closely related to another sequenced bacterium Sm2011 (SUNM2). Both strains are independent spontaneous streptomycin-resistant derivatives of the parental SU47 strain. Despite their derivation from a single parental strain, a number of phenotypic differences have been reported between them (adapted from PMID 23599422).


DownloadView all proteins
Component nameGenome Accession(s)
Plasmid pSymA1278
Plasmid pSymB1576


  1. "The complete sequence of the 1,683-kb pSymB megaplasmid from the N2-fixing endosymbiont Sinorhizobium meliloti."
    Finan T.M., Weidner S., Wong K., Buhrmester J., Chain P., Vorhoelter F.J., Hernandez-Lucas I., Becker A., Cowie A., Gouzy J., Golding B., Puehler A.
    Proc. Natl. Acad. Sci. U.S.A. 2001:9889-9894(2001) [PubMed] [Europe PMC] [Abstract]