Martini is a coarse grained model which uses four-to-one mapping strategy, and defined four types of beads: polar(P), non-polar(N), apolar(C), and charged(Q).
Martinize, converts the protein to Martini model.
Backward,conversion of CG models to GROMOS united atom representation.
1. Perspective on the Martini Model. Chem. Soc. Rev. 2013,42, 6801-6822.