>4ib6A (A:) observed residues (from ATOM records)
livtqtmkgldiqkvagtwyslamaasdislldaqsaplrvyveelkptpegdleillqk
wendecaqkkiiaektkipavfkidalnenkvlvldtdykkyllfcmensqslvcqclvr
tpevddealekfdkalkalpmhirlsfnptqleeqchi