>4db3A (A:) observed residues (from ATOM records)
nlyfqsnamyygfdvggtkiefgafneklervatervptptddypllletiaglvakydq
efacegkiglglpgmedaddatvltvnvpaakgkplradleakigrsvkiendancfals
eawdeelqdapsvmglilgtgfgggliyegkvfsgrnnvagelghmrlpldawfhlgdna
pllgcgcgkkgcldsylsgrgfellyahyygeekkaidiikanaagdekaaehverfmel
laicfgniftandphvvalggglsnfeliyeempkrvpkyllsvakcpkiikakhgdsgg
vrgaaflnikg