The human amiloride-sensitive Na+/H+ antiporter: localization to chromosome 1 by in situ hybridization

Abstract
The Na+/H+ antiporter is a ubiquitous membrane-bound enzyme involved in pH regulation of vertebrate cells. We cloned the human gene capable of complementing antiporter-deficient mouse fibroblasts and isolated an exon-containing genomic DNA fragment. Using this genomic probe, we mapped the putative structural gene of the amiloride-sensitive Na+/H+ antiporter to the human chromosome region 1p35→p36.1 by in situ hybridization.