ɪnðə fˈɑːloʊɪŋ dɪskˈʌʃən, lˈɛt biː ðə lˈɛŋθ ʌvðə pɹˈoʊtiːn ænd lˈɛt ɹˌɛpɹᵻzˈɛnt ðə ɹˈoʊɾeɪmɚɹ ʌvðə sˈaɪd tʃˈeɪn.
In the following discussion, let  be the length of the protein and let  represent the rotamer of the  side chain.