# refseq assembly genbank ucsc NC_043363.1 segment_Un_1 U76536.1 NC_043363v1 NC_043364.1 segment_Un_2 D10681.1 NC_043364v1 NC_043365.1 segment_Un_3 AF027657.1 NC_043365v1 NC_043366.1 segment_Un_4 U19239.1 NC_043366v1