MODRES 1YI6 PTR A 335 TYR O-PHOSPHOTYROSINE MODRES 1YI6 PTR A 416 TYR O-PHOSPHOTYROSINE MODRES 1YI6 PTR B 335 TYR O-PHOSPHOTYROSINE MODRES 1YI6 PTR B 416 TYR O-PHOSPHOTYROSINE