genome chm1_cens_v13 trackDb chm1_cens_v13/trackDb.txt groups chm1_cens_v13/groups.txt description CHM1 centromere assemblies v13 by Glennis Logsdon twoBitPath chm1_cens_v13/chm1_cens_v13.2bit organism Human defaultPos chm1_cen5v2:28500000-34300000 scientificName Homo sapiens