  We consider non-canonical embeddings of the MSSM in high-dimensional orbifold
GUTs based on the gauge symmetry SU(N), N=5,6,7,8. The hypercharge
normalization factor k_Y can either have unique non-canonical values, such as
23/21 in a six-dimensional SU(7) model, or may lie in a (continuous) interval.
Gauge coupling unification and gauge-Yukawa unification can be realized in
these models by introducing new particles with masses in the TeV range which
may be found at the LHC. In one such example there exist color singlet
fractionally charged states.
