>1xkpA (A:) observed residues (from ATOM records)
xqfrgesvqivsgtlqsiadmaeevtelsldkrklsdsqarvsdveeqvnqylskvpele
qkqnvsellsllsnspnislsqlkaylegkseepseqfkmlcglrdalkgrpelahlshl
veqalvsmaeeqgetivlgaritpeayresqsgvnplqplrdtyrdavmgyqgiyaiwsd
lqkrfpngdidsvilflqkalsadlqsqqsgsgreklgivisdlqklkefg