>1rtlB (B:) SEQRES residues
masmtggqqmgapitayaqqtrgllgciitsltgrdknqvegevqivstatqtflatcin
gvcwtvyhgagtrtiaspkgpviqmytnvdqdlvgwpapqgsrsltpctcgssdlylvtr
hadvipvrrrgdsrgsllsprpisylkgssggpllcpaghavglfraavctrgvtkavdf
ipvenlettmrsgshhhhhh