>4q1sM (M:) observed residues (from ATOM records)
tqqpivtgtsvismkydngviiaadnlgsygsllrfngverlipvgdntvvgisgdisdm
qhierllkdlvtenaydnpladaeealepsyifeylatvmyqrrskmnplwnaiivagvq
sngdqflryvnllgvtyssptlatgfgahmanpllrkvvdresdipkttvqvaeeaivna
mrvlyyrdarssrnfslaiidkntgltfkknlqvenmkwdfakdikgygtqki