>3tvxB (B:) observed residues (from ATOM records)
mniprfgvktdqeellaqelenlnkwglnifcvsdyaggrsltcimymifqerdllkkfr
ipvdtmvtymltledhyhadvayhnslhaadvlqsthvllatpaldavftdleilaalfa
aaihdvdhpgvsnqflintnselalmyndesvlenhhlavgfkllqedncdifqnlskrq
rqslrkmvidmvlatdmskhmtlladlktmvetkkvtssgvllldnysdriqvlrnmvhc
adlsnptkplelyrqwtdrimaeffqqgdrerergmeispmcdkhtasveksqvgfidyi
vhplwetwadlvhpdaqeildtlednrdwyysai