>1k3aA (A:) observed residues (from ATOM records)
vpdewevarekitmsrelgqgsfgmvyegvakgvvkdepetrvaiktvneaasmrerief
lneasvmkefnchhvvrllgvvsqgqptlvimelmtrgdlksylrslrpempslskmiqm
ageiadgmaylnankfvhrdlaarncmvaedftvkigdfgmtrdiyetdyyrkggkgllp
vrwmspeslkdgvfttysdvwsfgvvlweiatlaeqpyqglsneqvlrfvmegglldkpd
ncpdmllelmrmcwqynpkmrpsfleiissikeemepgfrevsfyyseenk