>1ylfB (B:) SEQRES residues snamitmkissrfsiavhilsilknnpsslctsdymaesvntnpvvirkimsylkqagfv yvnrgpggagllkdlheitlldvyhavnvveedklfhiheqpnpdcpiganiqavleiil iqaqsameevlrnitmgqlfetlqekmna