ASCT Ligand

P-LPK is a dodecapeptide that specifically targets SLC1A5, which is highly expressed on the membrane of colorectal cancer cells, with a K_d value of 1.19 μM. P-LPK has no intrinsic cell proliferation regulatory activity. Gallium-68-labeled P-LPK selectively accumulates at colorectal cancer tumor sites in xenograft mouse models. P-LPK can serve as a targeted carrier to deliver Camptothecin (HY-16560) to colorectal cancer cells, forming the conjugate P-LPK-CPT. P-LPK can be used in the research of colorectal cancer.

Boc-L-2,4-Diaminobutyric acid (N-Boc-L-2,4-diaminobutyric acid; Boc-Dab-OH) is a versatile synthetic starting material with a cleavable protecting group. Boc-L-2,4-Diaminobutyric acid not only reduces the backbone cleavage rate by protecting the side-chain γ-amino group, but also triggers intramolecular cyclization of self-immolative linkers under acidic cleavage conditions, thus constructing stimuli-responsive materials. Boc-L-2,4-Diaminobutyric acid is also an important building block for bioactive molecules. It can be used in the synthesis of ASCT2 (SLC1A5) inhibitors and carboxynorspermine, and can also serve as an internal standard to support the quantitative detection of specific intracellular amino acids by UPLC-QQQ-MS.