>2b4dB (B:) observed residues (from ATOM records)
akfvirpataadcsdilrlikelakyeymeeqviltekdlledgfgehpfyhclvaevpk
ehwtpeghsivgfamyyftydpwigkllyledffvmsdyrgfgigseilknlsqvamrcr
cssmhflvaewnepsinfykrrgasdlsseegwrlfkidkeyllkmatee