>1t7sA (A:) observed residues (from ATOM records) dkiivmggknalvddagfkmlmqyekhnlsnlqkaydlnlrdvadlergflekpkqvemg kklekkvkyfneeaerhletldgmniitettpenqakrnrekrktlvngiqtllnqndal lrrlqeyqs