>1t7sB (B:) observed residues (from ATOM records) dkiivmggknalvddagfkmlmqyekhnlsnlqkaydlnlrdvadlergflekpkqvemg kklekkvkyfneeaerhletldgmniitettpenqakrnrekrktlvngiqtllnqndal lrrlqeyqs