>4lsuL (L:) observed residues (from ATOM records)
saltqppsvsgspgqsitlsctgastsvawyqqyadkaprlivfdgnkrpsdissrfsgs
qsggtasltisglqsedeayyhcnafeffgggtkltvlsqpkaapsvtlfppsseelqan
katlvclisdfypgavtvawkadsspvkagvetttpskqsnnkyaassylsltpeqwksh
ksyscqvthegstvektvaptec