name = 'methyl group'

valence = 1

C  = Atom('C')
H1 = Atom('H')
H2 = Atom('H')
H3 = Atom('H')

bonds = [Bond(C, H1), Bond(C, H2), Bond(C, H3)]

pdbmap = [('MTH', {'C': C, 'H1': H1, 'H2': H2, 'H3': H3})]

amber_atom_type = {C: 'CT', H1: 'HC', H2: 'HC', H3: 'HC'}

amber_charge = {C: 0., H1: 0.1, H2: 0.1, H3: 0.1}
