G3BP stress granule assembly factor 1 SVTSKNLPPS GAVPVTGIPP HVVKVPASQP RPESKPESQI PPQRPQRDQR VREQRINIPP QRGPRPIREA GEQGDIEPRR MPFPQRNVLH ITDIWYVSFI GIFLIFYVFE KPVRNTGFDN ILKAGKTQIV SSLRVMTTFW CGEIAIGKFD NFDSHWYV