>4le6B (B:) observed residues (from ATOM records)
aapaqqktqvpgyyrmalgdfevtalydgyvdlpasllkgiddkdlqsllarmfvasekg
vqtavnaylintgdnlvlidtgaaqcfgptlgvvqtnlkasgyqpeqvdtvllthlhpdh
acglvnadgspaypnatvevpqaellpgvslvaspghtpghtsylfksggqsllvwgdil
lnhavqfakpevvfefdvdsdqarqsrqrilaeaatdklwvagahlpfpglghvrkeaqg
yawvpvefspirsdr