>5xfdB (B:) observed residues (from ATOM records)
ttsavniynisagasvdlaapvttgdivtffssalnlsnntalnllsengayllhiafrl
qenvivfnsrqpnapwlveqrvsnvanqfigsggkamvtvfdhgdkyqvvinektviqyt
kqisgttsslsynstsifstvveavtytgla