>1X1F_1|Chain A|Signal-transducing adaptor protein 1|Homo sapiens (9606) GSSGSSGQERLKITALPLYFEGFLLIKRSGYREYEHYWTELRGTTLFFYTDKKSIIYVDKLDIVDLTCLTEQNSTEKNCAKFTLVLPKEEVQLKTENTESGEEWRGFILTVTELSVPQNVSLLPGQVIKLHEVLEREKKRRIESGPSSG