Recombinant human KRAS (GTPase), isoform a, encompassing amino acids 2-186(end). This construct contains an N-terminal His-tag (6xHis) followed by an optimal TEV protease target sequence that allows cleavage of the His-tag from the protein (TEV: tobacco etch virus cysteine protease BPS Bioscience #50308) and mutation of interest (G12C). The recombinant protein was affinity purified.

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