12-repeat allele at DYS392 microsatellite of certain PN2 clades, including E-M78.

Update!

Getting back to the point raised earlier about the rare 12-repeat allele at DYS392 by Semino et al...

It is interesting that both E-P2* and E-M35* and their derivatives, E-M78 and E-M123, exhibit in Ethiopians the 12-repeat allele at the DYS392 microsatellite locus, an allele scarcely seen (Y-Chromosome STR Database), especially in other haplogroups and other populations (A.S.S.-B.,