>3wtbD (D:) observed residues (from ATOM records)
mthrvalitggsrgigaaialklaqdgfdiaityarnekaaqkvvsevealgrkavavqa
dggstdgniaaitktheafgrldalvcnagiypygpiaqmtvtqieevlnlnlraamvet
vealkymktggrliyigsafgerapfpgislyaatkagligftkgvardlgpqgitanvv
epgpiatdlnpedgaaaavirkftatesygkvndiartvsflaspdasyitgasilvdgg
lva