>4af2A (A:) observed residues (from ATOM records)
qgidpftmsqtvhfqgnpvtvansipqagskaqtftlvakdlsdvtlgqfagkrkvlnif
psidtgvsaasvrkfnqlateidntvvlcisadlpfaqsrfcgaeglnnvitlstfrnae
flqaygvaiadgplkglaaravvvidendnvifsqlvdeittepdyeaalavlka