FUNCTION: High affinity carnitine transporter; the uptake is partially sodium-ion dependent. Thought to mediate the L-carnitine secretion mechanism from testis epididymal epithelium into the lumen which is involved in the maturation of spermatozoa. Also transports organic cations such as tetraethyla...
FUNCTION: High affinity carnitine transporter; the uptake is partially sodium-ion dependent. Thought to mediate the L-carnitine secretion mechanism from testis epididymal epithelium into the lumen which is involved in the maturation of spermatozoa. Also transports organic cations such as tetraethylammonium (TEA) and doxorubicin. The uptake of TEA is inhibited by various organic cations. The uptake of doxorubicin is sodium-independent. {ECO:0000269|PubMed:12089149, ECO:0000269|PubMed:15963465}.
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GO - Biological processes (BP):
acid secretion [GO:0046717]; carnitine transport [GO:0015879]; cell differentiation [GO:0030154]; flagellated sperm motility [GO:0030317]; organic cation transport [GO:0015695]; single fertilization [GO:0007338]; spermatogenesis [GO:0007283]...
acid secretion [GO:0046717]; carnitine transport [GO:0015879]; cell differentiation [GO:0030154]; flagellated sperm motility [GO:0030317]; organic cation transport [GO:0015695]; single fertilization [GO:0007338]; spermatogenesis [GO:0007283]
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GO - Molecular function (MF):
amine transmembrane transporter activity [GO:0005275]; carnitine transmembrane transporter activity [GO:0015226]; organic cation transmembrane transporter activity [GO:0015101]...
amine transmembrane transporter activity [GO:0005275]; carnitine transmembrane transporter activity [GO:0015226]; organic cation transmembrane transporter activity [GO:0015101]
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GO - Cellular component (CC):
cytosol [GO:0005829]; integral component of membrane [GO:0016021]; plasma membrane [GO:0005886]...
cytosol [GO:0005829]; integral component of membrane [GO:0016021]; plasma membrane [GO:0005886]
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