The type-1 diabetes mellitus resistant ZnT8 specific antibody C22 is screened and authenticated and can be used for diagnosing and treating type-1 diabetes mellitus and/or preparing prognosis reagents.
Figure 1 Binding ability of scFv antibodies to ZnT8 N/C fusion protein by phage-ELISA.
The affinity of scFv C27 and C22 were the highest among these positive clones.
Wu, Q., Wang, X., Gu, Y., Zhang, X., Qin, Y., Chen, H., ... & Zhang, M. (2016). Screening and identification of human ZnT8-specific single-chain variable fragment (scFv) from type 1 diabetes phage display library. Science China Life Sciences, 59, 686-693.
Figure 2 Binding ability of scFv to ZnT8 N/C fusion protein by western blotting analyze.
Lane 1, N/C fusion protein detected with scFv-C22; lane 2, negative control. ZnT8 N/C fusion protein showed a band ~20 kD with C22 scFv, which is the predicted molecular weight.
Wu, Q., Wang, X., Gu, Y., Zhang, X., Qin, Y., Chen, H., ... & Zhang, M. (2016). Screening and identification of human ZnT8-specific single-chain variable fragment (scFv) from type 1 diabetes phage display library. Science China Life Sciences, 59, 686-693.
Figure 3 Affinity test of C22-scFv to ZnT8 N/C fusion protein.
The affinity assay showed that C22 scFv bound to N/C fusion protein with high affinity.
Wu, Q., Wang, X., Gu, Y., Zhang, X., Qin, Y., Chen, H., ... & Zhang, M. (2016). Screening and identification of human ZnT8-specific single-chain variable fragment (scFv) from type 1 diabetes phage display library. Science China Life Sciences, 59, 686-693.
Figure 4 Binding capacity of scFv to C terminal dimer protein measured by ELISA.
The binding capacity of serial diluted scFv to the C terminal dimer decreased with the dilution ratio increased, which indicated the renatured scFvs could bind to ZnT8 in a concentration dependent manner.
Wu, Q., Wang, X., Gu, Y., Zhang, X., Qin, Y., Chen, H., ... & Zhang, M. (2016). Screening and identification of human ZnT8-specific single-chain variable fragment (scFv) from type 1 diabetes phage display library. Science China Life Sciences, 59, 686-693.
Figure 5 Immunohistochemical reaction to ZnT8 in the human pancreas.
The C22-scFv were specific to human islet cells.
Wu, Q., Wang, X., Gu, Y., Zhang, X., Qin, Y., Chen, H., ... & Zhang, M. (2016). Screening and identification of human ZnT8-specific single-chain variable fragment (scFv) from type 1 diabetes phage display library. Science China Life Sciences, 59, 686-693.
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HPAB-M0206-YC | Human Anti-SLC30A10 Recombinant Antibody (clone C27) | ELISA, WB, IHC | Human IgG |
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