>5x1tA (A:) observed residues (from ATOM records) snslpsgyrfnefeiqeaigeggfgivyraydhqlertiaikeymptslakrnddlsigl rgerfgktfqaglnsfiqearllarfshpgllhvlrfweengtaymgtqfysgttlknlq aqqpekideawirrllpplfsaintihqegylhrdisldniqiqesqlpvlldfgsarke ignlsdeteivlkpgfapieqyteqgpwtdiyalgavlhtlivgspppvsvvrsiedsyq plterrpagyspellrtvdralalkpedrpqtidemaellehh