>1a1rB (B:) observed residues (from ATOM records)
pitayaqqtrgllgciitsltgrdknqvegevqivstatqtflatcingvcwtvyhgagt
rtiaspkgpviqmytnvdqdlvgwpapqgsrsltpctcgssdlylvtrhadvipvrrrgd
srgsllsprpisylkgssggpllcptghavglfraavctrgvakavdfipvenlettmr