Knockout of the V-ATPase interacting protein Tldc2 in B-type kidney intercalated cells impairs urine alkalinization
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Acid-base balance in the body is constantly changing but must be tightly controlled to be compatible with life. The kidney contains specialized cells that can excrete excess acid or base (bicarbonate) into the urine to maintain normal blood pH. The key protein involved in this process is called the V-ATPase. Here, we report that a novel V-ATPase interacting protein Tldc2 is critical for kidney bicarbonate secretion and is, therefore, a previously unrecognized acid-base regulatory gene.
