From SNPedia
rs53576 is a silent G to A change in the oxytocin receptor (OXTR) gene.
A blog summarizes 10.1073/pnas.0909579106 to show that people with the (G;G) genotype were better able to discern the emotional state of others than students who carried the A-allele.
[PMID 19015103] Oxytocin receptor and serotonin transporter (5-HTT) genes associated with observed parenting.
[PMID 19376182] Associations between the oxytocin receptor gene (OXTR) and affect, loneliness and intelligence in normal subjects
