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Table 2 Cellular urate flow based on the localization of the expressed influx (row) and efflux (column) transporters

From: Identification of three distinct cell populations for urate excretion in human kidneys

 

Localization of Efflux transporters

None

(AE(−), BE(−))

Apical

(AE( +), BE(−))

Apical + Basolateral

(AE(+), BE(+))

Basolateral

(AE(−), BE(+))

Localization of Influx

Transporters (Cell population)

Apical

(AIP)

Unfunctional

Unfunctional

Reabsorption

Reabsorption

Apical + Basolateral

(DIP)

?

Secretion

Bi-direction

Reabsorption

Basolateral

(BIP)

Unfunctional

Secretion

Secretion

Unfunctional

None

(DIN)

Unfunctional

Unfunctional

Unfunctional

Unfunctional

  1. Cellular urate flow consists of three modes: reabsorption (in bold), bi-directional (in underlined), or secretion (in italics)