>4q75B (B:) observed residues (from ATOM records)
vslghrvrkdfrilhqevngsklvyldsaatsqkpaavldalqnyyefynsnvhrgihyl
sakatdefelarkkvarfinasdsreivftrnateainlvayswglsnlkpgdeviltva
ehhscivpwqivsqktgavlkfvtlnedevpdinklrelispktklvavhhvsnvlassl
pieeivvwahdvgakvlvdacqsvphmvvdvqklnadflvasshkmcgptgigflygksd
llhsmppflgggemisdvfldhstyaeppsrfeagtpaigeaialgaavdylsgigmpki
heyeveigkylyeklsslpdvriygprpsesvhrgalcsfnveglhptdlatfldqqhgv
airsghhcaqplhrylgvnasaraslyfyntkddvdafivaladtvsffnsfk