>1w4bA (A:) observed residues (from ATOM records)
mihlydaksfaklraaqyaafhtdapgswfdhtsgvlesvedgtpvlaigvesgdaivfd
knaqrivaykeksvkaedgsvsvvqvengfmkqghrgwlvdltgelvgcspvvaefgghr
yasgmvivtgkgnsgktplvhalgealggkdkyatvrfgeplsgyntdfnvfvddiaram
lqhrvividslknviisrgafdllsdigamaasrgcvviaslnptsnddkivelvkeasr
snstslvistdvdgewqvltrtgeglqrlthtlqtsygehsvltihts