##gff-version 3 O54865 UniProtKB Chain 1 620 . . . ID=PRO_0000074117;Note=Guanylate cyclase soluble subunit beta-1 O54865 UniProtKB Domain 421 554 . . . Note=Guanylate cyclase;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00099 O54865 UniProtKB Binding site 105 105 . . . Note=Proximal binding residue;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P16068