Huntington’s protein may have a crony

Researchers may have discovered how a neuron-killing protein selects its victims — it has an accomplice.

Scientists identified a mutant form of the protein huntingtin as the culprit in Huntington’s disease in 1993. The protein is found in every cell in the body, but it only turns deadly in brain cells — particularly cells in the striatum, a part of the brain that helps control movement.