>6htra (a:) observed residues (from ATOM records)
tqqpivtgtsvismkydngviiaadnlgsygsllrfngverlipvgdntvvgisgdisdm
qhierllkdlvtenaydnpladaeealepsyifeylatvmyqrrskmnplwnaiivagvq
sngdqflryvnllgvtyssptlatgfgahmanpllrkvvdresdipkttvqvaeeaivna
mrvlyyrdarssrnfslaiidkntgltfkknlqvenmkwdfakdikgy