>3cefB (B:) observed residues (from ATOM records)
dvtctasepivrivgrngmtvdvrdddfhdgnqiqlwpsksnndpnqlwtikkdgtirsn
gsclttygytagvyvmifdcntavreatiwqiwgngtiinprsnlvlaassgikgttltv
qtldytlgqgwlagndtaprettiygfrdlcmesaggsvyvetctagqenqrwalygdgs
irpkqlqsqcltngrdsistvinivscsagssgqrwvftnegailnlknglamdvaqanp
slqriiiypatgnpnqmwlpvp