>5cz1D (D:) observed residues (from ATOM records)
kprvlwqmdvthvsefgklkyvhvtvdtyshftfatartgeatkdvlqhlaqsfaymgip
qkiktdnapayvsrsiqeflarwkishvtaiverthqnikaqlnklqkagkyytphhlla
halfvlnhvnmdnqghtaaerhw