>5xt5B (B:) observed residues (from ATOM records)
mnitdireqfpilhqqvnghdlvyldsaatsqkpravietldkyynqynsnvhrgvhtlg
tratdgyegarekvrkfinaksmaeiiftkgtttslnmvalsyaranlkpgdevvityme
hhaniipwqqavkatgatlkyiplqedgtisledvretvtsntkivavshvsnvlgtvnp
ikemakiahdngavivvdgaqstphmkidvqdldcdffalsshkmcgptgvgvlygkkal
lenmepaefggemidfvglyestwkelpwkfeagtpiiagaiglgaaidfleeigldeis
rhehklaayalerfrqldgvtvygpeeraglvtfnlddvhphdvatvldaegiavraghh
caqplmkwldvtatarasfylynteeeidklvealqktkeyftnv