>4e1lB (B:) observed residues (from ATOM records)
amkdvvivsavrtpigsfggvfkntsavqlgtiavkeaisrvglnlseideviignvlqt
glgqnvarqiainagipnsvpsytvnklcgsglksvqlaaqsitsgendvviaggtenms
qapyivptarfgskmgtdglidafnqyhmgitaeniatkfeftremqdklalesqnkaen
aiknnrfkeeivpvdvlirrgkietidkdeypklgmtfeglsklkpafkkdgtvtagnas
gindgaamlilmsqqkadelgirplakiksyasagvepevmgtgpipatrkalkkaglsi
ndidlieaneafaaqalavknelqidssklnvnggaialghpigasgarilvtliyemqk
rkvetglatlcigggqgismvvsr