>4q50C (C:) observed residues (from ATOM records)
lalsltadqmvsalldaeppilysesmmglltnladrelvhminwakrvpgfvdltlhdq
vhllecawleilmiglvwrsmehpgkllfapnllldrnqgkcvmveifdmllatssrfrm
mnlqgeefvclksiillnsgvytsstsleekdhihrvldkitdtlihlmakagltlqqqh
qrlaqlllilshirhmsnkgmehlysvvplyglllemlda