Table 1.

Result of immunization experiments.

Antigen	Route	Amount	Induction of anti-CLDN-5 ECR antibodies
Wild-type CLDN-5 ∆C	Tail base	20 µg × 2	0/20
Antigen1	i.p.	20 µg × 4	16/19
Antigen2	i.p.	20 µg × 4	14/17