##gff-version 3 Q89D21 UniProtKB Transmembrane 46 67 . . . Note=Helical;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:Phobius Q89D21 UniProtKB Transmembrane 243 265 . . . Note=Helical;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:Phobius Q89D21 UniProtKB Domain 323 458 . . . Note=Guanylate cyclase;Ontology_term=ECO:0000259;evidence=ECO:0000259|PROSITE:PS50125