>3kj4A (A:) observed residues (from ATOM records)
cpgacvcynepkvttscpqqglqavptgipassqriflhgnrisyvpaasfqscrnltil
wlhsnalagidaaaftgltlleqldlsdnaqlrvvdpttfrglghlhtlhldrcglqelg
pglfrglaalqylylqdnnlqalpdntfrdlgnlthlflhgnripsvpehafrglhsldr
lllhqnhvarvhphafrdlgrlmtlylfannlsmlpaevlvplrslqylrlndnpwvcdc
rarplwawlqkfrgsssevpcnlpqrlagrdlkrlaasdlegc