Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.


StatusReference proteome
Proteome IDiUP000001976
Taxonomy266834 - Rhizobium meliloti (strain 1021)
Last modifiedFebruary 27, 2018
Genome assembly and annotationi GCA_000006965.1 from ENA/EMBL
Pan proteomei This proteome is part of the Rhizobium meliloti (strain 1021) (Ensifer meliloti) (Sinorhizobium 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]

Cookie policy

We would like to use anonymized google analytics cookies to gather statistics on how is used in aggregate. Learn more

UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health