>3vxtB (B:) observed residues (from ATOM records)
eaqvtqnprylitvtgkkltvtcsqnmnheymswyrqdpglglrqiyysmnvevtdkgdv
pegykvsrkekrnfplilespspnqtslyfcassgasheqyfgpgtrltvtedlknvfpp
evavfepseaeishtqkatlvclatgfypdhvelswwvngkevhsgvctdpqplkeqpal
ndsryalssrlrvsatfwqnprnhfrcqvqfyglsendewtqdrakpvtqivsaeawgra
d