Chains and heterogens:
PDB Chain Sequences:
>1xwsA (A:) mllskinslahlraapcndlhatklapgkekeplesqyqvgpllgsggfgsvysgirvsd nlpvaikhvekdrisdwgelpngtrvpmevvllkkvssgfsgvirlldwferpdsfvlil erpepvqdlfdfitergalqeelarsffwqvleavrhchncgvlhrdikdenilidlnrg elklidfgsgallkdtvytdfdgtrvysppewiryhryhgrsaavwslgillydmvcgdi pfehdeeiirgqvffrqrvssecqhlirwclalrpsdrptfeeiqnhpwmqdvllpqeta eihlhslspgpsk
>1xwsA (A:) plesqyqvgpllgsggfgsvysgirvsdnlpvaikhvekdrisdwgelpngtrvpmevvl lkkvssgfsgvirlldwferpdsfvlilerpepvqdlfdfitergalqeelarsffwqvl eavrhchncgvlhrdikdenilidlnrgelklidfgsgallkdtvytdfdgtrvysppew iryhryhgrsaavwslgillydmvcgdipfehdeeiirgqvffrqrvssecqhlirwcla lrpsdrptfeeiqnhpwmqdvllpqetaeihlh