Evaluation of Evidence for Pathogenicity Demonstrates That BLK, KLF11, and PAX4 Should Not Be Included in Diagnostic Testing for MODY

© 2022 by the American Diabetes Association..

Maturity-onset diabetes of the young (MODY) is an autosomal dominant form of monogenic diabetes, reported to be caused by variants in 16 genes. Concern has been raised about whether variants in BLK (MODY11), KLF11 (MODY7), and PAX4 (MODY9) cause MODY. We examined variant-level genetic evidence (cosegregation with diabetes and frequency in population) for published putative pathogenic variants in these genes and used burden testing to test gene-level evidence in a MODY cohort (n = 1,227) compared with a control population (UK Biobank [n = 185,898]). For comparison we analyzed well-established causes of MODY, HNF1A, and HNF4A. The published variants in BLK, KLF11, and PAX4 showed poor cosegregation with diabetes (combined logarithm of the odds [LOD] scores ≤1.2), compared with HNF1A and HNF4A (LOD scores >9), and are all too common to cause MODY (minor allele frequency >4.95 × 10-5). Ultra-rare missense and protein-truncating variants (PTV) were not enriched in a MODY cohort compared with the UK Biobank population (PTV P > 0.05, missense P > 0.1 for all three genes) while HNF1A and HNF4A were enriched (P < 10-6). Findings of sensitivity analyses with different population cohorts supported our results. Variant and gene-level genetic evidence does not support BLK, KLF11, or PAX4 as a cause of MODY. They should not be included in MODY diagnostic genetic testing.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:71

Enthalten in:

Diabetes - 71(2022), 5 vom: 01. Mai, Seite 1128-1136

Sprache:

Englisch

Beteiligte Personen:

Laver, Thomas W [VerfasserIn]
Wakeling, Matthew N [VerfasserIn]
Knox, Olivia [VerfasserIn]
Colclough, Kevin [VerfasserIn]
Wright, Caroline F [VerfasserIn]
Ellard, Sian [VerfasserIn]
Hattersley, Andrew T [VerfasserIn]
Weedon, Michael N [VerfasserIn]
Patel, Kashyap A [VerfasserIn]

Links:

Volltext

Themen:

Apoptosis Regulatory Proteins
BLK protein, human
EC 2.7.10.2
Hepatocyte Nuclear Factor 1-alpha
Homeodomain Proteins
Journal Article
KLF11 protein, human
PAX4 protein, human
Paired Box Transcription Factors
Repressor Proteins
Research Support, Non-U.S. Gov't
Src-Family Kinases

Anmerkungen:

Date Completed 22.04.2022

Date Revised 14.02.2024

published: Print

figshare: 10.2337/figshare.19099838

Citation Status MEDLINE

doi:

10.2337/db21-0844

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM336419252