Human T-lymphotropic virus 2 (HTLV-2) shares approximately 70% genomic homology (structural similarity) with HTLV-I. It is found predominantly in Native Americans, and South American Indian groups. And also in Asian countries. More common in Japan and Korea.[citation needed] It can be passed down from mother to child through breastmilk and genetically as well from either parent. HTLV-2 entry in target cells is mediated by the glucose transporter GLUT1. HTLV-2 has not been clearly linked to any disease, but has been associated with several cases of myelopathy/tropical spastic paraparesis (HAM/TSP)-like neurological disease. Capsid protein p24 forms the conical core of the virus that encapsulates the genomic RNA-nucleocapsid complex.