>4lb2A (A:) observed residues (from ATOM records)
sevahrfkdlgeenfkalvliafaqylqqcpfedhvklvnevtefaktcvadesaencdk
slhtlfgdklctvatlretygemadccakqepernecflqhkddnpnlprlvrpevdvmc
tafhdneetflkkylyeiarrhpyfyapellffakrykaafteccqaadkaacllpklde
lrdegkassakqrlkcaslqkfgerafkawavarlsqrfpkaefaevsklvtdltkvhte
cchgdllecaddradlakyicenqdsissklkeccekpllekshciaevendempadlps
laadfveskdvcknyaeakdvflgmflyeyarrhpdysvvlllrlaktyettlekccaaa
dphecyakvfdefkplveepqnlikqncelfeqlgeykfqnallvrytkkvpqvstptlv
evsrnlgkvgskcckhpeakrmpcaedylsvvlnqlcvlhektpvsdrvtkccteslvnr
rpcfsalevdetyvpkefnaetftfhadictlsekerqikkqtalvelvkhkpkatkeql
kavmddfaafvekcckaddketcfaeegkklvaasqaa