>1u43A (A:) observed residues (from ATOM records)
mrighgfdvhafggegpiiiggvripyekgllahsdgdvalhaltdallgaaalgdigkl
fpdtdpafkgadsrellreawrriqakgytlgnvdvtiiaqapkmlphipqmrvfiaedl
gchmddvnvkattteklgftgrgegiaceavalli