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A novel multimeric sCD19‐streptavidin fusion protein for functional detection and selective expansion of CD19‐targeted CAR‐T cells

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CARs are engineered receptors comprising an immunoglobulin single‐chain variable fragment (scFv) that identifies and binds to the target antigen, a transmembrane domain, and an intracellular T‐cell signaling domain. CD19 is… Click to show full abstract

CARs are engineered receptors comprising an immunoglobulin single‐chain variable fragment (scFv) that identifies and binds to the target antigen, a transmembrane domain, and an intracellular T‐cell signaling domain. CD19 is a B lineage‐specific transmembrane glycoprotein and is expressed in more than 95% of B‐cell malignancies. Streptavidin (SA) is a homo‐tetrameric protein derived from Streptomyces avidinii, which can bind four biotin molecules with an extremely high affinity at a Kd value of 10‐15 M.

Keywords: scd19 streptavidin; novel multimeric; fusion protein; streptavidin fusion; multimeric scd19; cd19

Journal Title: Cancer Medicine
Year Published: 2022

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