>2b3vA (A:) observed residues (from ATOM records)
fvirpataadcsdilrlikelaryeymeeqviltekdlledgfgehpfyhclvaevpkeh
wtpeghsivgfamyyftydpwigkllyledffvmsdyrgfgigseilknlsqvamrcrcs
smhflvaewnepsinfykrrgasdlsseegwrlfkidkeyllkmate