Table II.

CK2-mediated regulation of occludin, claudin-1, claudin-2, and ZO-1 mobile fractions

Condition Occludin Claudin-1 Claudin-2 ZO-1 
Steady state 68 ± 3 36 ± 2 33 ± 3 48 ± 3 
CK2 inhibition 52 ± 5ab  51 ± 5a 60 ± 4a 
Occludin knockdown/occludin S408A 49 ± 3a 57 ± 3a 51 ± 2a 61 ± 4a 
Occludin knockdown/CK2 inhibition   27 ± 1 45 ± 4 
ZO-1 knockdown/CK2 inhibition   32 ± 2  
Condition Occludin Claudin-1 Claudin-2 ZO-1 
Steady state 68 ± 3 36 ± 2 33 ± 3 48 ± 3 
CK2 inhibition 52 ± 5ab  51 ± 5a 60 ± 4a 
Occludin knockdown/occludin S408A 49 ± 3a 57 ± 3a 51 ± 2a 61 ± 4a 
Occludin knockdown/CK2 inhibition   27 ± 1 45 ± 4 
ZO-1 knockdown/CK2 inhibition   32 ± 2  
a

Data changes are significant (P < 0.05) relative to steady state.

b

Data were confirmed by in vitro CK2 knockdown and in vivo CK2 inhibition.

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