Identification of a dysfunctional exon-skipping splice variant in GLUT9/SLC2A9 causal for renal hypouricemia type 2.
Identification of a dysfunctional exon-skipping splice variant in GLUT9/SLC2A9 causal for renal hypouricemia type 2.
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DOI:
10.3389/fgene.2022.1048330
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发表时间:
2022
影响因子:
3.7
通讯作者:
中科院分区:
文献类型:
--
作者:
Renal hypouricemia (RHUC) is a pathological condition characterized by extremely low serum urate and overexcretion of urate in the kidney; this inheritable disorder is classified into type 1 and type 2 based on causative genes encoding physiologically-important urate transporters, URAT1 and GLUT9, respectively; however, research on RHUC type 2 is still behind type 1. We herein describe a typical familial case of RHUC type 2 found in a Slovak family with severe hypouricemia and hyperuricosuria. Via clinico-genetic analyses including whole exome sequencing and in vitro functional assays, we identified an intronic GLUT9 variant, c.1419+1G>A, as the causal mutation that could lead the expression of p.Gly431GlufsTer28, a functionally-null variant resulting from exon 11 skipping. The causal relationship was also confirmed in another unrelated Macedonian family with mild hypouricemia. Accordingly, non-coding regions should be also kept in mind during genetic diagnosis for hypouricemia. Our findings provide a better pathogenic understanding of RHUC and pathophysiological importance of GLUT9.
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DOI:
10.1016/j.berh.2021.101717
发表时间:
2021-12
期刊:
Best practice & research. Clinical rheumatology
影响因子:
--
作者:
Halperin Kuhns VL;Woodward OM
通讯作者:
Woodward OM
DOI:
10.3904/kjim.2015.125
发表时间:
2016-09
期刊:
The Korean journal of internal medicine
影响因子:
--
作者:
Son CN;Kim JM;Kim SH;Cho SK;Choi CB;Sung YK;Kim TH;Bae SC;Yoo DH;Jun JB
通讯作者:
Jun JB
影响因子:
13.3
作者:
Safiri, Saeid;Kolahi, Ali Asghar;Smith, Emma
通讯作者:
Smith, Emma
影响因子:
27.4
作者:
Nakayama A;Nakaoka H;Yamamoto K;Sakiyama M;Shaukat A;Toyoda Y;Okada Y;Kamatani Y;Nakamura T;Takada T;Inoue K;Yasujima T;Yuasa H;Shirahama Y;Nakashima H;Shimizu S;Higashino T;Kawamura Y;Ogata H;Kawaguchi M;Ohkawa Y;Danjoh I;Tokumasu A;Ooyama K;Ito T;Kondo T;Wakai K;Stiburkova B;Pavelka K;Stamp LK;Dalbeth N;Eurogout Consortium;Sakurai Y;Suzuki H;Hosoyamada M;Fujimori S;Yokoo T;Hosoya T;Inoue I;Takahashi A;Kubo M;Ooyama H;Shimizu T;Ichida K;Shinomiya N;Merriman TR;Matsuo H;Eurogout Consortium
通讯作者:
Eurogout Consortium
影响因子:
64.8
作者:
Enomoto, A;Kimura, H;Endou, H
通讯作者:
Endou, H