>3difB (B:) observed residues (from ATOM records)
evklqqsgpelvkpgasvkisckasgysftsyyihwvkqrpgqglewigwvfpgsgntky
nekfkgkatltadtssstaymqlssltsedsavyfcargnydrawfaywgqgtlvtvsaa
kttppsvyplapsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdlytlsssv
tvpsstwpsetvtcnvahpasstkvdkkivp