>4upmB (B:) observed residues (from ATOM records)
rflkvknwetdvvltdtlhlkstletgctehicmgsimlpvrtkdqlfplakefldqyys
sikrfgskahmdrleevnkeieststyqlkdteliygakhawrnasrcvgriqwsklqvf
dardcttahgmfnyicnhvkyatnkgnlrsaitifpqrtdgkhdfrvwnsqliryagykq
pdgstlgdpanvqfteiciqqgwkaprgrfdvlplllqangndpelfqippelvlevpir
hpkfdwfkdlglkwyglpavsnmlleigglefsacpfsgwymgteigvrdycdnsrynil
eevakkmdldmrktsslwkdqalveiniavlysfqsdkvtivdhhsatesfikhmeneyr
crggcpadwvwivppmsgsitpvfhqemlnyrltpsfeyqpdpwnthvwkg