>3zf0A (A:) observed residues (from ATOM records)
tntlqvkllsknarmperagydifsaetvvlepqekaviktdvavsipegyvglltsrsg
vsskthlvietgkiaagyhgnlginikndheddkmqtiflrnidnekifekerhlyklgs
yriekgeriaqlvivpiwtpelkqveefe