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. 2016 Aug 9:7:12342.
doi: 10.1038/ncomms12342.

A protein-truncating R179X variant in RNF186 confers protection against ulcerative colitis

Manuel A Rivas  1   2 Daniel Graham  1 Patrick Sulem  3 Christine Stevens  1 A Nicole Desch  1 Philippe Goyette  4 Daniel Gudbjartsson  3   5 Ingileif Jonsdottir  3   6   7 Unnur Thorsteinsdottir  3   7 Frauke Degenhardt  8 Sören Mucha  8 Mitja I Kurki  1   2 Dalin Li  9   10 Mauro D'Amato  11   12 Vito Annese  13   14 Severine Vermeire  15   16 Rinse K Weersma  17 Jonas Halfvarson  18 Paulina Paavola-Sakki  19   20   21 Maarit Lappalainen  19   20   22 Monkol Lek  1   2 Beryl Cummings  1   2 Taru Tukiainen  1   2 Talin Haritunians  9   10 Leena Halme  23 Lotta L E Koskinen  22   24 Ashwin N Ananthakrishnan  25   26 Yang Luo  27 Graham A Heap  28 Marijn C Visschedijk  17 UK IBD Genetics ConsortiumNIDDK IBD Genetics ConsortiumDaniel G MacArthur  1   2 Benjamin M Neale  1   2 Tariq Ahmad  29 Carl A Anderson  27 Steven R Brant  30   31 Richard H Duerr  32   33 Mark S Silverberg  34 Judy H Cho  35 Aarno Palotie  1   2   36   37 Päivi Saavalainen  38 Kimmo Kontula  19   20 Martti Färkkilä  19   20   21 Dermot P B McGovern  9   10 Andre Franke  8 Kari Stefansson  3   7 John D Rioux  4   39 Ramnik J Xavier  1   25 Mark J Daly  1   2 J Barrett  28 K de Lane  28 C Edwards  40 A Hart  41 C Hawkey  42 L Jostins  43   44 N Kennedy  45 C Lamb  46 J Lee  47 C Lees  45 J Mansfield  46 C Mathew  48   49 C Mowatt  50 B Newman  51   52 E Nimmo  53 M Parkes  47 M Pollard  28 N Prescott  48   49 J Randall  28 D Rice  28 J Satsangi  53 A Simmons  54   55 M Tremelling  56 H Uhlig  57 D Wilson  58   59 C Abraham  60 J P Achkar  61   62 A Bitton  63 G Boucher  4 K Croitoru  64 P Fleshner  23 J Glas  63 S Kugathasan  65 J V Limbergen  66 R Milgrom  35 D Proctor  60 M Regueiro  33 P L Schumm  67 Y Sharma  68 J M Stempak  35 S R Targan  23 M H Wang  32
Collaborators, Affiliations

A protein-truncating R179X variant in RNF186 confers protection against ulcerative colitis

Manuel A Rivas et al. Nat Commun. .

Erratum in

  • Erratum: A protein-truncating R179X variant in RNF186 confers protection against ulcerative colitis.
    Rivas MA, Graham D, Sulem P, Stevens C, Desch AN, Goyette P, Gudbjartsson D, Jonsdottir I, Thorsteinsdottir U, Degenhardt F, Mucha S, Kurki MI, Li D, D'Amato M, Annese V, Vermeire S, Weersma RK, Halfvarson J, Paavola-Sakki P, Lappalainen M, Lek M, Cummings B, Tukiainen T, Haritunians T, Halme L, Koskinen LL, Ananthakrishnan AN, Luo Y, Heap GA, Visschedijk MC; UK IBD Genetics Consortium; NIDDK IBD Genetics Consortium; MacArthur DG, Neale BM, Ahmad T, Anderson CA, Brant SR, Duerr RH, Silverberg MS, Cho JH, Palotie A, Saavalainen P, Kontula K, Färkkilä M, McGovern DP, Franke A, Stefansson K, Rioux JD, Xavier RJ, Daly MJ. Rivas MA, et al. Nat Commun. 2016 Sep 13;7:12869. doi: 10.1038/ncomms12869. Nat Commun. 2016. PMID: 27619887 Free PMC article. No abstract available.

Abstract

Protein-truncating variants protective against human disease provide in vivo validation of therapeutic targets. Here we used targeted sequencing to conduct a search for protein-truncating variants conferring protection against inflammatory bowel disease exploiting knowledge of common variants associated with the same disease. Through replication genotyping and imputation we found that a predicted protein-truncating variant (rs36095412, p.R179X, genotyped in 11,148 ulcerative colitis patients and 295,446 controls, MAF=up to 0.78%) in RNF186, a single-exon ring finger E3 ligase with strong colonic expression, protects against ulcerative colitis (overall P=6.89 × 10(-7), odds ratio=0.30). We further demonstrate that the truncated protein exhibits reduced expression and altered subcellular localization, suggesting the protective mechanism may reside in the loss of an interaction or function via mislocalization and/or loss of an essential transmembrane domain.

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Conflict of interest statement

K.S. and his team report personal fees from deCODE Genetics/Amgen outside the submitted work. The remaining authors declare no competing financial interests.

Figures

Figure 1
Figure 1. R179X impact on protein allele expression and cellular localization.
(a) Schematic diagram of the RNF186 protein with a zinc finger RING-type and two helical transmembrane (TM1 and TM2) domains, and the A64T and R179X variants shown. (b) 293T cells were transfected with the indicated expression constructs and analysed by western blot for expression of Rnf186 and the R179X variant. The RNF186 protein with a premature stop at amino-acid position 179 is expressed, but at reduced levels. (c) 293T cells were transfected with the indicated expression constructs and analysed by immunofluorescence to demonstrate altered subcellular localization of the R179X variant.

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