Fig. 1From: Validation of [125I]CPCR4.3 as an investigative tool for the sensitive and specific detection of hCXCR4 and mCXCR4 expression in vitro and in vivoStructures of [natGa] Pentixafor and CPCR4.3; please note the central structural modification introduced into the peptide backbone, i.e. the shift of the functionalized alkyl chain from Cα of d-Orn2 (in Ga-Pentixafor) to Nα of d-Ala2 in CPCR4.3Back to article page