>3kj4D (D:) observed residues (from ATOM records)
cpgacvcynepkvttscpqqglqavptgipassqriflhgnrisyvpaasfqscrnltil
wlhsnalagidaaaftgltlleqldlsdnaqlrvvdpttfrglghlhtlhldrcglqelg
pglfrglaalqylylqdnnlqalpdntfrdlgnlthlflhgnripsvpehafrglhsldr
lllhqnhvarvhphafrdlgrlmtlylfannlsmlpaevlvplrslqylrlndnpwvcdc
rarplwawlqkfrgsssevpcnlpqrlagrdlkrlaasdlegc