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SLC2A9

Function

Urate transporter, which may play a role in the urate reabsorption by proximal tubules (PubMed:18327257, PubMed:28083649). Does not transport glucose, fructose or galactose (PubMed:28083649).

Involvement in disease

Hypouricemia renal 2

RHUC2

A disorder characterized by impaired uric acid reabsorption at the apical membrane of proximal renal tubule cells, and high urinary urate excretion. Patients often appear asymptomatic, but may be subject to exercise-induced acute renal failure, chronic renal dysfunction and nephrolithiasis.

None

The disease is caused by variants affecting the gene represented in this entry.

Sequence similarities

Belongs to the major facilitator superfamily. Sugar transporter (TC 2.A.1.1) family. Glucose transporter subfamily.

Tissue specificity

Most strongly expressed in basolateral membranes of proximal renal tubular cells, liver and placenta. Also detected in lung, blood leukocytes, heart skeletal muscle and chondrocytes from articular cartilage. Isoform 2 is only detected in the apical membranes of polarized renal tubular cells and placenta. Isoform 1 and isoform 2 are detected in kidney membrane (at protein level).

Cellular localization

  • Isoform 1
  • Basolateral cell membrane
  • Multi-pass membrane protein
  • Isoform 2
  • Apical cell membrane
  • Multi-pass membrane protein
  • Basolateral cell membrane
  • Multi-pass membrane protein

Alternative names

  • Glucose transporter type 9
  • Urate transporter
  • GLUT-9
  • SLC2A9
  • GLUT9

Target type

Proteins

Molecular weight

58702Da