>1iv2D (D:) observed residues (from ATOM records)
rigygedshrleegrplylcgllipspvgalahsdgdaamhaltdallsayglgdigllf
pdtdprwrgersevflreamrlveargakllqaslvltldrpklgphrkalvdslsrlmr
lpqdrigltfktseglapshvqaravvlld