| http://purl.uniprot.org/proteomes/UP000002483 | http://www.w3.org/2000/01/rdf-schema#comment | "Anabaena is a filamentous, heterocyst-forming cyanobacterium. Heterocysts are metabolically highly active cells that have the capacity for the fixation of dinitrogen. Under conditions of nitrogen deficiency, heterocysts differentiate from vegetative cells at semi-regular intervals along the filaments, generating a pattern."xsd:string |