Chains and heterogens:
PDB Chain Sequences:
>1e63A (A:) dvpvnlyrpnapfigkvisneplvkeggigivqhikfdltggnlkyiegqsigiippgvd kngkpeslrlysiastrhgddvddktislcvrqleykhpesgetvygvcstylthiepgs evkitgpvgkemllpddpeanvimlatgtgiapmrtylwrmfkdaeraanpeyqfkgfsw lvfgvpttpnilykeeleeiqqkypdnfrltyaisreqknpqggrmyiqdrvaehadqlw qliknqkthtyicglrgmeegidaalsaaaakegvtwsdyqkdlkkagrwhvety