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Mutations in SLC26A1 Cause Nephrolithiasis.

Authors
 Heon Yung Gee  ;  Ikhyun Jun  ;  Daniela A. Braun  ;  Jennifer A. Lawson  ;  Jan Halbritter  ;  Shirlee Shril  ;  Caleb P. Nelson  ;  Weizhen Tan  ;  Deborah Stein  ;  Ari J. Wassner  ;  Michael A. Ferguson  ;  Zoran Gucev  ;  John A. Sayer  ;  Danko Milosevic  ;  Michelle Baum  ;  Velibor Tasic  ;  Min Goo Lee  ;  Friedhelm Hildebrandt 
Citation
 AMERICAN JOURNAL OF HUMAN GENETICS, Vol.98(6) : 1228-1234, 2016 
Journal Title
 AMERICAN JOURNAL OF HUMAN GENETICS 
ISSN
 0002-9297 
Issue Date
2016
MeSH
Amino Acid Sequence ; Anion Transport Proteins/chemistry ; Anion Transport Proteins/genetics* ; Anion Transport Proteins/metabolism* ; Bicarbonates/metabolism ; Fluorescent Antibody Technique ; Glycosylation ; High-Throughput Nucleotide Sequencing ; Humans ; Immunoblotting ; Mutation/genetics* ; Nephrolithiasis/etiology* ; Nephrolithiasis/pathology ; Protein Conformation ; Protein Folding ; Protein Transport ; Real-Time Polymerase Chain Reaction ; Sequence Homology, Amino Acid ; Sulfates/metabolism
Abstract
Nephrolithiasis, a condition in which urinary supersaturation leads to stone formation in the urinary system, affects about 5%-10% of individuals worldwide at some point in their lifetime and results in significant medical costs and morbidity. To date, mutations in more than 30 genes have been described as being associated with nephrolithiasis, and these mutations explain about 15% of kidney stone cases, suggesting that additional nephrolithiasis-associated genes remain to be discovered. To identify additional genes whose mutations are linked to nephrolithiasis, we performed targeted next-generation sequencing of 18 hypothesized candidate genes in 348 unrelated individuals with kidney stones. We detected biallelic mutations in SLC26A1 (solute carrier family 26 member 1) in two unrelated individuals with calcium oxalate kidney stones. We show by immunofluorescence, immunoblotting, and glycosylation analysis that the variant protein mimicking p.Thr185Met has defects in protein folding or trafficking. In addition, by measuring anion exchange activity of SLC26A1, we demonstrate that all the identified mutations in SLC26A1 result in decreased transporter activity. Our data identify SLC26A1 mutations as causing a recessive Mendelian form of nephrolithiasis.
Full Text
http://www.sciencedirect.com/science/article/pii/S0002929716300611
DOI
10.1016/j.ajhg.2016.03.026
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Pharmacology (약리학교실) > 1. Journal Papers
Yonsei Authors
Lee, Min Goo(이민구) ORCID logo https://orcid.org/0000-0001-7436-012X
Jun, Ik Hyun(전익현) ORCID logo https://orcid.org/0000-0002-2160-1679
Gee, Heon Yung(지헌영) ORCID logo https://orcid.org/0000-0002-8741-6177
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/146951
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