Genes in panel
STRs in panel
Prev Next

Inborn errors of metabolism

Gene: TWNK

Green List (high evidence)

TWNK (twinkle mtDNA helicase)
EnsemblGeneIds (GRCh38): ENSG00000107815
EnsemblGeneIds (GRCh37): ENSG00000107815
OMIM: 606075, Gene2Phenotype
TWNK is in 17 panels

5 reviews

Carl Fratter (Oxford University Hospitals NHS Trust)

Green List (high evidence)

Mode of inheritance
BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal

Variants in this GENE are reported as part of current diagnostic practice

Louise Daugherty (Genomics England Curator)

added new-gene-name tag, HGNC Approved Gene Symbol is TWNK
Created: 22 May 2017, 11:38 a.m.

Sarah Leigh (Genomics England Curator)

New gene name for C10ORF2 is TWNK
Created: 31 Oct 2016, 12:43 p.m.

Mode of inheritance
BOTH monoallelic and biallelic, autosomal or pseudoautosomal

Phenotypes
Required for mtDNA maintenance (Mitochondrial respiratory chain disorders (caused by nuclear variants only))

Publications

Shamima Rahman (UCL Institute of Child Health)

Green List (high evidence)

Ellen McDonagh (Genomics England Curator)

This gene was submitted as "PEO1" by two experts, which likely corresponds to this HGNC-approved symbol. Illumina source has this gene as both dominant (for Progressive External Ophthalmoplegia with Mitochondrial DNA Deletions) and recessive (for Mitochondrial Membrane Protein-Associated Neurodegeneration and Mitochondrial DNA Depletion Syndrome).
Created: 1 Jul 2015, 2:36 p.m.

Details

Mode of Inheritance
BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Sources
  • London North GLH
  • NHS GMS
  • Expert Review Green
Phenotypes
  • Mitochondrial Membrane Protein-Associated Neurodegeneration (biallelic)
  • Disorders of mitochondrial DNA maintenance and integrity
  • Mitochondrial DNA Depletion Syndrome (biallelic)
  • Required for mtDNA maintenance (Mitochondrial respiratory chain disorders (caused by nuclear variants only))
  • Progressive external ophthalmoplegia, autosomal dominant, 3, 609286
  • Mitochondrial DNA depletion syndrome 7 (hepatocerebral type), 271245
  • Mitochondrial DNA Depletion Syndrome
  • Progressive External Ophthalmoplegia with Mitochondrial DNA Deletions (monoallelic)
OMIM
606075
Clinvar variants
Variants in TWNK
Penetrance
None
Publications
Panels with this gene

History Filter Activity

13 Feb 2019, Gel status: 4

Added New Source, Added New Source

Ivone Leong (Genomics England Curator)

Source NHS GMS was added to TWNK. Source London North GLH was added to TWNK.

24 Jan 2019, Gel status: 4

Set Phenotypes

Rebecca Foulger (Genomics England curator)

Phenotypes for gene: TWNK were changed from Mitochondrial Membrane Protein-Associated Neurodegeneration (biallelic); Disorders of mitochondrial DNA maintenance and integrity; Mitochondrial DNA Depletion Syndrome (biallelic); Required for mtDNA maintenance (Mitochondrial respiratory chain disorders (caused by nuclear variants only)); Progressive external ophthalmoplegia, autosomal dominant, 3, 609286Mitochondrial DNA depletion syndrome 7 (hepatocerebral type), 271245; Mitochondrial DNA Depletion Syndrome; Progressive External Ophthalmoplegia with Mitochondrial DNA Deletions (monoallelic) to Mitochondrial Membrane Protein-Associated Neurodegeneration (biallelic); Disorders of mitochondrial DNA maintenance and integrity; Mitochondrial DNA Depletion Syndrome (biallelic); Required for mtDNA maintenance (Mitochondrial respiratory chain disorders (caused by nuclear variants only)); Progressive external ophthalmoplegia, autosomal dominant, 3, 609286; Mitochondrial DNA depletion syndrome 7 (hepatocerebral type), 271245; Mitochondrial DNA Depletion Syndrome; Progressive External Ophthalmoplegia with Mitochondrial DNA Deletions (monoallelic)

8 Jan 2019, Gel status: 4

Panel promoted to version 1.0

Ellen McDonagh (Genomics England Curator)

Ellen McDonagh: Comment on mode of pathogenici

16 Dec 2018, Gel status: 4

Set Phenotypes

Ellen McDonagh (Genomics England Curator)

Added phenotypes Mitochondrial Membrane Protein-Associated Neurodegeneration (biallelic); Disorders of mitochondrial DNA maintenance and integrity; Mitochondrial DNA Depletion Syndrome (biallelic); Progressive external ophthalmoplegia, autosomal dominant, 3, 609286Mitochondrial DNA depletion syndrome 7 (hepatocerebral type), 271245; Mitochondrial DNA Depletion Syndrome; Progressive External Ophthalmoplegia with Mitochondrial DNA Deletions (monoallelic) for gene: TWNK

16 Dec 2018, Gel status: 4

Created, Added New Source, Set mode of inheritance, Set publications, Set Phenotypes

Ellen McDonagh (Genomics England Curator)

gene: TWNK was added gene: TWNK was added to Inborn errors of metabolism. Sources: Expert Review Green Mode of inheritance for gene: TWNK was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: TWNK were set to 27604308 Phenotypes for gene: TWNK were set to Mitochondrial Membrane Protein-Associated Neurodegeneration (biallelic); Disorders of mitochondrial DNA maintenance and integrity; Mitochondrial DNA Depletion Syndrome (biallelic); Required for mtDNA maintenance (Mitochondrial respiratory chain disorders (caused by nuclear variants only)); Progressive external ophthalmoplegia, autosomal dominant, 3, 609286Mitochondrial DNA depletion syndrome 7 (hepatocerebral type), 271245; Mitochondrial DNA Depletion Syndrome; Progressive External Ophthalmoplegia with Mitochondrial DNA Deletions (monoallelic)