Figure 1.

Protein dihedral angle. This figure illustrates different protein dihedral angles. ϕ, ψ and ω constitute backbone dihedral angles and χ1, χ2 and χ3 denote side-chain dihedral angles.

Bhuyan and Gao BMC Bioinformatics 2011 12(Suppl 14):S10   doi:10.1186/1471-2105-12-S14-S10