Figure 1.
Display of hPD‐1 extracellular region on M13 phage. A, Western blot of PD‐1 phage. B, The binding of PD‐1 phage to hPD‐L1 detected by ELISA. Helper phage was run as a negative control. Error bars indicate SD (n = 3)
Display of hPD‐1 extracellular region on M13 phage. A, Western blot of PD‐1 phage. B, The binding of PD‐1 phage to hPD‐L1 detected by ELISA. Helper phage was run as a negative control. Error bars indicate SD (n = 3)