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Table 3 Cell-based studies demonstrating the effect of ATP1A2 mutations in Xenopus oocytes and HeLa cells

From: Genetic effects of ATP1A2 in familial hemiplegic migraine type II and animal models

Cell type

Mutation

Effect on pump function

Reference

HeLa

L764P

Complete loss

[2, 3, 27]

W887R

Complete loss

[2, 3, 27]

G615R

Complete loss

[27]

R593W

Reduced rate

[2, 41, 42]

V628M

Reduced rate

[2, 41, 42]

T345A

Similar to wild-type: lower affinity for potassium

[2, 41, 42]

M731T

Similar to wild-type: decreased catalytic turnover and increased affinity for potassium

[2, 41, 42]

R689Q

Similar to wild-type: decreased catalytic turnover and increased affinity for potassium

[2, 41, 42]

Xenopus oocytes

L764P

Complete loss

[43]

W887R

Complete loss

[43]