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EJNMMI Radiopharmacy and Chemistry
Fig. 1 | EJNMMI Radiopharmacy and Chemistry

Fig. 1

From: Unnatural amino acid substitutions to improve in vivo stability and tumor uptake of 68Ga-labeled GRPR-targeted TacBOMB2 derivatives for cancer imaging with positron emission tomography

Fig. 1

Chemical structures and GRPR binding affinities (Ki, mean ± SD, n = 3) of A LW01085 and its derivatives with an unnatural amino acid substitution at B His12, C Val10, D Ala9, E Gln7, F Val10-Gly11, and G Trp8. The potential cleavage sites of LW01085 are pointed by black arrows

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