Repeat Disorders

STR: FRDA

Green List (high evidence)

Chromosome: 9
GRCh37 Position: 71652203-71652220
GRCh38 Position: 69037287-69037304
Repeated Sequence: GAA
Normal Number of Repeats: < or = 33
Pathogenic Number of Repeats: = or > 66

FXN (frataxin)
EnsemblGeneIds (GRCh38): ENSG00000165060
EnsemblGeneIds (GRCh37): ENSG00000165060
OMIM: 606829, Gene2Phenotype
FXN is in 12 panels

1 review

Bryony Thompson (Royal Melbourne Hospital)

Green List (high evidence)

NM_000144.4:c.165+1340GAA[X]
Loss of function is the mechanism of disease
Normal: 5-33 repeats
Mutable normal (premutation): 34-65 repeats
Borderline: 44-66 repeats
Full-penetrance: ≥66 repeats
Sources: Expert list
Created: 16 Aug 2021, 12:18 a.m.

Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal

Phenotypes
Friedreich ataxia MIM#229300

Publications

Clinically Relevant

Interruptions in the repeated sequence are reported as part of standard diagnostic practise

Details

Name
FRDA
Chromosome
9
GRCh37 Coordinates
71652203-71652220
GRCh38 Coordinates
69037287-69037304
Repeated Sequence
GAA
Normal Number of Repeats: < or =
33
Pathogenic Number of Repeats: = or >
66
Mode of Inheritance
BIALLELIC, autosomal or pseudoautosomal
Sources
  • Expert Review Green
  • Expert list
Phenotypes
  • Friedreich ataxia MIM#229300
Tags
paediatric-onset
OMIM
606829
Clinvar variants
Variants in FXN
Penetrance
None
Publications

History Filter Activity

1 Sep 2021, Gel status: 3

Added Tag

Zornitza Stark (Victorian Clinical Genetics Services; Australian Genomics)

Tag paediatric-onset tag was added to STR: FRDA.

28 Aug 2021, Gel status: 3

Set publications

Bryony Thompson (Royal Melbourne Hospital)

Publications for STR: FRDA were set to 20301458

16 Aug 2021, Gel status: 3

Entity classified by Genomics England curator

Bryony Thompson (Royal Melbourne Hospital)

Str: frda has been classified as Green List (High Evidence).

16 Aug 2021, Gel status: 3

Entity classified by Genomics England curator

Bryony Thompson (Royal Melbourne Hospital)

Str: frda has been classified as Green List (High Evidence).

16 Aug 2021, Gel status: 1

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

Bryony Thompson (Royal Melbourne Hospital)

STR: FRDA was added STR: FRDA was added to Repeat Disorders. Sources: Expert list Mode of inheritance for STR: FRDA was set to BIALLELIC, autosomal or pseudoautosomal Publications for STR: FRDA were set to 20301458 Phenotypes for STR: FRDA were set to Friedreich ataxia MIM#229300 Review for STR: FRDA was set to GREEN STR: FRDA was marked as clinically relevant