>1usqA (A:) observed residues (from ATOM records)
gsftpsgttgttkltvtekcqvrvgdltvaktrgqltdaapigpvtvqalgcdarqvalk
adtdnfeqgkfflisdnnrdklyvnirptdnsawttdngvfykndvgswggiigiyvdgq
qtntppgnytltltggywa