DNA Marker Index information for Chromosome: Y Marker: CTS4157Names and Aliases for this DNA Marker: CTS4157, S3741, rs774014961.Chromosome Position in hg38 Human Genome assembly1: 13327256.Chromosome Position in hg19 assembly2: 15439136 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.