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Function (Oxf). 2021 Aug 17;2(5):zqab040. doi: 10.1093/function/zqab040. eCollection 2021.

The Molecular Basis of Glucose Galactose Malabsorption in a Large Swedish Pedigree.

Function (Oxford, England)

M Pilar Lostao, Donald D Loo, Olle Hernell, Gunnar Meeuwisse, Martin G Martin, Ernest M Wright

Affiliations

  1. Departments of Physiology and Pediatrics, The David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-1751, USA.
  2. Department of Physiology, The Geffen School of Medicine, UCLA, USA.

PMID: 34485913 PMCID: PMC8410129 DOI: 10.1093/function/zqab040

Abstract

Glucose-galactose malabsorption (GGM) is due to mutations in the gene coding for the intestinal sodium glucose cotransporter SGLT1 (SLC5A1). Here we identify the rare variant Gln457Arg (Q457R) in a large pedigree of patients in the Västerbotten County in Northern Sweden with the clinical phenotype of GGM. The functional effect of the Q457R mutation was determined in protein expressed in

© The Author(s) 2021. Published by Oxford University Press on behalf of American Physiological Society.

Keywords: GGM mutation SGLT1 structure; SGLT1; glucose-galactose malabsorption Swedish GGM pedigree; sodium glucose cotransporter

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