>1s5bA (A:) observed residues (from ATOM records)
nddklyradsrppdeikqsgglmprmninlydharvrhddgyvstsislrsahlvgqtil
sghstyyiyviatapnmfnvndvlgaysphpdeqevsalggipysqiygwyrvhfgvldq
lhrnrgyrdryysnldiapaadgyglagfppehrawreepwihhappgcgtcdektqslg
vkfldeyqskvkrqifsgyqsdidthnr