>2ar3A (A:) observed residues (from ATOM records)
meirkklvvpskygtkcpytmkpkyitvhntyndapaenevnymitnnnevsfhvavddk
qaiqgipwernawacgdgngpgnresisvaicysksggdryykaennavdvvrqlmsmyn
ipienvrthqswsgkycphrmlaegrwgafiqkvksg