>1xyoA (A:) SEQRES residues etiqpgtgynngyfysywndghggvtytngpggqfsvnwsnsgnfvggkgwqpgtknkvi nfsgsynpngnsylsvygwsrnplieyyivenfgtynpstgatklgevtsdgsvydiyrt qrvnqpsiigtatfyqywsvrrnhrssgsvntanhfnawaqqgltlgtmdyqivavegyf ssgsasitvs