>4obtB (B:) observed residues (from ATOM records)
arkffvggnwkcngtaeevkkivntlneaqvpsqdvvevvvsppyvflplvkstlrsdff
vaaqncwvkkggaftgevsaemlvnldipwvilghserrailnessefvgdkvayalaqg
lkviacvgetleereagstmdvvaaqtkaiadrvtnwsnvviayepvwaigtgkvaspaq
aqevhdelrkwlaknvsadvaattriiyggsvnggnckelggqadvdgflvggaslkpef
idiikaaevk