Schemat działania pompy Na K

Figurę 10.25 Schematic model of the sodium-potassium pump in operation

OUTSIDE OF CELL

O

2 K⁺ expelled to inside; pump returns to initial State

O

Q 3 Na' are taken from inside

ADP

Q ATP

phosphorylates a subunit, stimulating conformational

change

INSIDE OF CELL

Two K* accepted from outside

O

Na* expelled into surroundings

Pump open to outside, ready to start second half of cycle

From Mathews and van Holde: Biochemlstry 2/e. © The Benjamin/Cummings Publishing Co., Inc.