Lysosomal protein transmembrane 4 alpha is a protein that in humans is encoded by the LAPTM4A gene.
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Function
This gene encodes a protein that has four predicted transmembrane domains. The function of this gene has not yet been determined; however, studies in the mouse homolog suggest a role in the transport of small molecules across endosomal and lysosomal membranes.
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Further reading
This article incorporates text from the United States National Library of Medicine, which is in the public domain.