>4nrkA (A:) observed residues (from ATOM records)
drictgitssnsphvvktatqgevnvtgvipltttptrshfanlkgtqtrgklcpncfnc
tdldvalgrpkcmgnipsakvsilhevkpvtsgcypimhdrtkirqlpnllrgyenirls
tsnvintetapggpykvgtsgscpnvtngngffntmawvipkdnnkiainpvtvevpyic
segedqitvwgfhsddktqmerlygdsnpqkftssangvtthyvsqiggfpnqtedeglk
qsgrivvdymvqkpgktgtivyqrgillpqkvwcasgrskvikgslpligeadclhekyg
glnkskpyytgehakaigncpiwvktplklangtkyrppa