>1c4kA (A:) observed residues (from ATOM records)
ssslkiastqearqyfdtdrvvvdavgsdftdvgaviamdyetdvidaadatkfgipvfa
vtkdaqaisadelkkifhiidlefdatvnareietavnnyedsilppffkslkeyvsryl
iqfdcpghqggqyyrkhpagrefydffgetvfradlcnadvalgdllihegpavaaekha
arvynadktyfvlggssnanntvtsalvsngdlvlfdrnnhksvynsalamaggrpvylq
tnrnpygfiggiydsdfdekkirelaakvdperakwkrpfrlaviqlgtydgtiynahev
vkrighlcdyiefdsawvgyeqfipmmrnssplliddlgpedpgiivvqsvhkqqagfsq
tsqihkkdshikgqlrycdhkhfnnsfnlfmstspfypmyaaldvnaamqegeagrklwh
dllittiearkklikagsmfrpfvppvvngkkwedgdtedmannidywrfekgakwhaye
gygdnqyyvdpnkfmlttpginpetgdyedfgvpativanylrdhgiipeksdlnsilfl
mtpaetpakmnnlitqllqlqrlieedaplkqvlpsiyaaneeryngytirelcqelhdf
yknnntftyqkrlflreffpeqgmlpyearqefirnhnklvplnkiegeialegalpypp
gvfcvapgekwsetavkyftilqdginnfpgfapeiqgvyfkqegdkvvaygevydaeva
knddrynn