{"success":true,"accession":"NM_000044.6","description":"NM_000044.6 Homo sapiens androgen receptor (AR), transcript variant 1, mRNA","sequence_length":10667,"cag_count":22,"cag_position":[1297,1363],"sequence_preview":"AGCGCCCCCTCCGAGATCCCGGGGAGCCAGCTTGCTGGGAGAGCGGGACGGTCCGGAGCAAGCCCAGAGGCAGAGGAGGCGACAGAGGGAAAAAGGGCCGAGCTAGCCGCTCCAGTGCTGTACAGGAGCCGAAGGGACGCACCACGCCAG...","source":"NCBI RefSeq","error":null,"note":"Reference AR sequence (NM_000044.6) from NCBI RefSeq. The CAG count of this reference serves as the educational baseline."}