To answer this question we need to obtain the RNA sequence first
Original mutated sequence:
CCC GCT CGG AGG AGT
Obtaining RNA
CCC GCT CGG AGG AGT
GGG CGA GCC UCC UCA
Obtaining amino acid sequence
GGG CGA GCC UCC UCA
Gly Arg Ala Ser Ser
Coding for one letter amino acid
Gly Arg Ala Ser Ser
G R A S S