>3rrdA (A:) observed residues (from ATOM records)
adtivaveldsypntdigdpsyphigidiksvrskstarwnmqtgkvgtahisynsvakr
lsavvsytgsssttvsydvdlnnvlpewvrvglsattglyketntilswsftsklktans
lhfsfnqfsqnpkdlilqgdattdsdgnlqltrvssdgspqgssvgralfyapvhiweks
avvasfdatftflikspdrdpadgitffiantdtsipsgsggrllglfpdan