>4GBQ_1|Chain A|GRB2|Mus musculus (10090)
GSRRASVGSMEAIAKYDFKATADDELSFKRGDILKVLNEECDQNWYKAELNGKDGFIPKNYIEMKPHPEFIVTD
>4GBQ_2|Chain B|SOS-1|Mus musculus (10090)
XVPPPVPPRRRX