>4r43A (A:) observed residues (from ATOM records)
ipgldtaptnhqgllswveevaeltqpdrvvftdgseeefqrlcdqlveagtfirlnpek
hknsylalsdpsdvarvesrtyicsakeidagptnnwmdpgemrsimkdlyrgcmrgrtm
yvvpfcmgplgaedpklgveitdseyvvvsmrtmtrmgkaalekmgddgffvkalhsvga
plepgqkdvawpcsetkyithfpetreiwsygsgyggnallgkkcyslriasamahdegw
laehmlilklispenkayyfaaafpsacgktnlamlqptipgwraetlgddiawmrfgkd
grlyavnpefgffgvapgtnwksnpnamrtiaagntvftnvaltddgdvwweglegdpqh
lidwkgndwyfretetnaahpnsryctpmsqcpilapewddpqgvpisgilfggrrkttv
plvteardwqhgvfigatlgseqtaaaegkvgnvrrdpmamlpflgynvgdyfqhwinlg
khadesklpkvffvnwfrrgddgrflwpgfgensrvlkwivdriehkaggattpigtvpa
vedldldgldvdaadvaaalavdadewrqelplieewlqfvgeklptgvkdefdalkerl
g