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HAMAP: Listeria welshimeri serovar 6b (strain ATCC 35897 / DSM 20650 / SLCC5334) complete proteome
General information

Species:  Listeria welshimeri serovar 6b (strain ATCC 35897 / DSM 20650 / SLCC5334)
Species code: LISW6
Taxonomy: Bacteria; Firmicutes; Bacillales; Listeriaceae; Listeria (TaxID: 386043) [NEWT/ NCBI]
Description: Listeria are Gram-positive, motile, facultative anaerobic bacteria; L.welshimeri (serovar 6b) is one of 4 nonpathogenic members of the genus. There are 2 pathogenic members, L.monocytogenes (also fully sequenced) and L.ivanovii. L.welshimeri was first isolated from decaying plants. Biochemical properties such as presence of catalase activity, absence of oxidase activity and acid production from fermentation of D-xylose or alpha-methyl-D-mannoside but not from L-rhamnose or D-mannitol are used to distinguish it from other Listeria. Comparisons between the 4 currently fully-sequenced genomes L.welshimeri, L.innocua (another non-pathogenic Listeria) and L.monocytogenes indicate that the non-pathogenic Listeria probably evolved from a virulent ancestor by loss of the virulence gene cluster region. Genes lost include those coding for virulence, general intracellular survival genes, surface-associated LPXTG- and LRR-containing proteins and proteins involved in survival at elevated temperatures. L.welshimeri has undergone further gene loss (233 genes compared to L.innocua and L.monocytogenes) and acquired other novel genes (311 genes compared to L.innocua and L.monocytogenes), probably as a result of horizontal gene transfer. Genes exclusively present in L.welshimeri include those for uptake and utilization systems for plant energy sources, indicating an adaptation to a plant saprophytic lifestyle. It contains a single putative prophage inserted in a region that in the related pathogen L.ivanovii has pathogenicity island.
Properties: Presence of flagella: Yes
Human pathogen: No
Interaction: Plant saprophyte
Number of membranes: 1
Number of inteins:0
Statistics: Number of LISW6 entries in the UniProt Knowledgebase: 2769 (406 in UniProtKB/Swiss-Prot + 2363 in UniProtKB/TrEMBL)


Genome(s) sequenced

Strain:    ATCC 35897 / DSM 20650 / SLCC5334
Genome structure:
Chromosome EMBL accession number AM263198 (circular; 2,814,130 bp) (download entry)
Reference(s):
[1] PubMed=16936040; [ NCBI , EBI , Israel , Japan ]
Hain T., Steinweg C., Kuenne C.T., Billion A., Ghai R., Chatterjee S.S., Domann E., Kaerst U., Goesmann A., Bekel T., Bartels D., Kaiser O., Meyer F., Puehler A., Weisshaar B., Wehland J., Liang C., Dandekar T., Lampidis R., Kreft J., Goebel W., Chakraborty T. ;
"Whole-genome sequence of Listeria welshimeri reveals common steps in genome reduction with Listeria innocua as compared to Listeria monocytogenes.";
J. Bacteriol. 188:7405-7415(2006).
Web links:
Official genome site(s):
http://www.genomik.uni-wuerzburg.de/pathogenomik_2001_-_2006/overview/
Other web sites:
Entrez Genome Project: http://www.ncbi.nlm.nih.gov/sites/entrez?Db=genomeprj&Cmd=DetailsSearch&Term=txid386043%5Borgn%5D
GIB (DDBJ): http://gib.genes.nig.ac.jp/single/index.php?spid=Lwel_6B_SLCC5334
NMPDR: http://www.nmpdr.org/FIG/wiki/rest.cgi/NmpdrPlugin/SeedViewer?pattern=386043.6;page=SearchResult
PEDANT: http://pedant.gsf.de/pedant3htmlview/pedant3view?Method=analysis&Db=p3_p13443_Lis_welsh
 EBI Proteome Analysis page



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