>5xw3A (A:) observed residues (from ATOM records)
mnvyrgvhelightpiveitrfslpegvrlfaklefynpggsvkdrlgreliedalekgl
vteggtiieptagntgiglalaalqhdlrvivcvpekfsiekqelmkalgatvvhtpteq
gmtgaiakakelvneipnsyspsqfaneanprayfktlgpelwsalngeinifvagagtg
gtfmgtasylkeknidiktvivepegfdeihtisdrnaflrvkelaqkegllvgsssgaa
fhaslleaekaapgtnivtifpdss