Sequence_accession_number,Species_name,GC_content,Sequence_length,Sequence_status,Is_protein_coding_sequence,Is_annotated HB886919,Saccoglossus kowalevskii,49.5964783565664,1363.0,observed,0,0 HC754350,Saccoglossus kowalevskii,38.7225548902196,1002.0,observed,1,1 HC944328,Saccoglossus kowalevskii,49.5964783565664,1363.0,observed,0,0