DNA Marker Index information for Chromosome: Y Marker: M523Names and Aliases for this DNA Marker: M523, L15, PF3492, S137, Z4413, IJK-L15, IJK, rs9786139.Chromosome Position in hg38 Human Genome assembly1: 6885478.Chromosome Position in hg19 assembly2: 6753519 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.