>3fm4A (A:) observed residues (from ATOM records)
atcddgrttanaaccilfpilddiqenlfdgaqcgeevheslrltfhdaigfsptlgggg
adgsiiafdtietnfpanagideivsaqkpfvakhnisagdfiqfagavgvsncpggvri
pfflgrpdavaaspdhlvpepfdsvdsilarmgdagfspvevvwllashsiaaaakvdps
ipgtpfdstpgvfdsqffietqlkgrlfpgtadnkgeaqsplqgeirlqsdhllardpqt
acewqsmvnnqpkiqnrfaatmskmallgqdktklidcsdviptppalvgaahlpagfsl
sdveqacaatpfpaltadp