DNA Marker Index information for Chromosome: Y Marker: CTS1231Names and Aliases for this DNA Marker: CTS1231, Z1649, rs747773503.Chromosome Position in hg38 Human Genome assembly1: 7416468.Chromosome Position in hg19 assembly2: 7284509 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.