Species code:	PSEA6
Taxonomy:	Bacteria; Proteobacteria; Gammaproteobacteria; Alteromonadales; Pseudoalteromonadaceae; Pseudoalteromonas (TaxID: 342610) [NEWT/ NCBI]
Description:	Pseudoalteromonas atlantica is a motile, biofilm-forming, Gram-negative chemoorganotroph that is found in oceans worldwide. It was first isolated in association with marine algae and named Pseudomonas atlantica, but has now been assigned to a new genus, Pseudoalteromonas. P.atlantica is found associated with marine eukaryotic hosts (seaweed, crab) as well as in the water column, and produces a variety of biologically active extracellular compounds. The extracellular compounds identified from P.atlantica include enzymes that hydrolyze agar, alginate, and carrageenan, acidic extracellular polysaccharide (EPS), and proteases. It was shown to be a primary biofilm-forming bacteria, attaching to sterile slides and producing voluminous amounts of EPS. Following biofilm formation by P.atlantica , stalked and/or filamentous bacteria with more limited nutrient utilization capabilities attached to the surface, and these organisms were followed by diatoms, microalgae, and sessile protozoa. These results suggest that P. atlantica colonizes solid surfaces quickly, utilizing substrates that are processed for uptake by its secreted agarases, proteases, etc., and then forms biofilms in which the EPS concentrates nutrients and provides substrates for other marine microorganisms.
Properties:	Presence of flagella: Yes Interaction: No Number of membranes: 2 Number of inteins:0
Statistics:	Number of PSEA6 entries in the UniProt Knowledgebase: 4271 (378 in UniProtKB/Swiss-Prot + 3893 in UniProtKB/TrEMBL)

Genome structure:	Chromosome EMBL accession number CP000388 (circular; 5,187,005 bp) (download entry) (download Genome Reviews).
Reference(s):	[1] Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S., Saunders E., Brettin T., Bruce D., Han C., Tapia R., Gilna P., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Kim E., Karls A.C., Bartlett D., Higgins B.P., Richardson P. ; "Complete sequence of Pseudoalteromonas atlantica T6c."; Submitted (JUN-2006) to the EMBL/GenBank/DDBJ databases.
Web links:	Official genome site(s): http://genome.jgi-psf.org/finished_microbes/pseat/pseat.home.html Other web sites: Entrez Genome Project: http://www.ncbi.nlm.nih.gov/sites/entrez?Db=genomeprj&Cmd=DetailsSearch&Term=txid342610%5Borgn%5D GIB (DDBJ): http://gib.genes.nig.ac.jp/single/index.php?spid=Patl_T6C PEDANT: http://pedant.gsf.de:3345/pedant3htmlview/pedant3view?Method=start_method&Db=p3_p13454_Pse_atlan  EBI Proteome Analysis page

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