>4d1nB (B:) observed residues (from ATOM records)
cprflkvknwetevvltdtlhlkstletgcteyicmgsimhpvatkdqlfplakefidqy
yssikrfgskahmerleevnkeidttstyqlkdteliygakhawrnasrcvgriqwsklq
vfdardcttahgmfnyicnhvkyatnkgnlrsaitifpqrtdgkhdfrvwnsqliryagy
kqpdgstlgdpanvqfteiciqqgwkpprgrfdvlplllqangndpelfqippelvlevp
irhpkfewfkdlglkwyglpavsnmlleigglefsacpfsgwymgteigvrdycdnsryn
ileevakkmnldmrktsslwkdqalveiniavlysfqsdkvtivdhhsatesfikhmene
yrcrggcpadwvwivppmsgsitpvfhqemlnyrltpsfeyqpdpwnthvw