Volume-regulated anion channel subunit LRRC8D (LRRC8D)

Non-essential component of the volume-regulated anion channel (VRAC, also named VSOAC station ), an anion channel necessary to maintain a constant cell volume in response to extracellular or intracellular osmotic changes (PubMed:24790029, PubMed:26530471, PubMed:26824658, PubMed:28193731). The VRAC channel conducts iodide better than chloride and can also conduct organic osmolytes like taurine (PubMed:24790029, PubMed:26824658, PubMed:28193731).

Plays a redundant role in the efflux of amino acids, such as aspartate, in response to osmotic stress (PubMed:28193731). Channel activity requires LRRC8A and at least one other relative (LRRC8B, LRRC8C, LRRC8D or LRRC8E); channel characteristics are based on the exact subunit composition (PubMed:24782309, PubMed:24790029, PubMed:26824658, PubMed:28193731).