The single nucleotide variant at c.662A>G in human RRM2B is a loss-of-function mutation.

ABSTRACT:

Background

Mitochondrial DNA maintenance defects (MDMDs) is one of the critical pediatric dysfunction. One of the recent report indicated that a severe patient of MDMDs carries the NP_056528.2:p.Asn221Ser (N221S) variation in the RRM2B gene (NM_015713.5). However, there is no direct evidence demonstrating the nature of the N221S variation.

Materials and methods

This study aimed to utilize zebrafish and morpholino oligomer (MO) knockdown technique to provide direct evidence for the nature of the N221S variation in the RRM2B.

Results

The results showed that two distinct MOs were both able to perturb the expression of rrm2b in zebrafish and dose-dependently induced morphological defects. Furthermore, co-injection of human wild-type RRM2B mRNA with MO-e4i4 successfully re

SUBMITTER: Tseng YT 

PROVIDER: S-EPMC7667293 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature