Variant chr9-69046440-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 4P and 4B. PM1PM2BP4_Strong

The NM_000144.5(FXN):c.221A>G(p.Tyr74Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,814 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

FXN
NM_000144.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0680

Variant links:

Genes affected

FXN (HGNC:3951): (frataxin) This nuclear gene encodes a mitochondrial protein which belongs to the FRATAXIN family. The protein functions in regulating mitochondrial iron transport and respiration. The expansion of intronic trinucleotide repeat GAA from 8-33 repeats to >90 repeats results in Friedreich ataxia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2016]

FXN links:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM1

In a chain Frataxin(56-210) (size 154) in uniprot entity FRDA_HUMAN there are 16 pathogenic changes around while only 5 benign (76%) in NM_000144.5

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.062787056).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FXN	NM_000144.5 linkuse as main transcript	c.221A>G	p.Tyr74Cys	missense_variant	2/5	ENST00000484259.3
FXN	NM_181425.3 linkuse as main transcript	c.221A>G	p.Tyr74Cys	missense_variant	2/5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FXN	ENST00000484259.3 linkuse as main transcript	c.221A>G	p.Tyr74Cys	missense_variant	2/5	3	NM_000144.5	P1	Q16595-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251378

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135854

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461814

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727202

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Athena Diagnostics

Feb 19, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.069

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.42

CADD

Benign

DANN

Benign

0.096

DEOGEN2

Benign

0.28

T;.;.;T;.

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.0067

LIST_S2

Benign

0.64

.;T;T;T;T

M_CAP

Benign

0.035

MetaRNN

Benign

0.063

T;T;T;T;T

MetaSVM

Benign

-0.94

MutationAssessor

Benign

0.55

N;N;N;N;.

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Benign

0.28

PROVEAN

Benign

0.0

.;N;N;.;.

REVEL

Benign

0.19

Sift

Benign

0.39

.;T;T;.;.

Sift4G

Benign

0.28

.;T;T;.;.

Polyphen

0.0

B;B;.;B;.

Vest4

0.072, 0.091

MutPred

0.59

Gain of catalytic residue at L75 (P = 0.0107);Gain of catalytic residue at L75 (P = 0.0107);Gain of catalytic residue at L75 (P = 0.0107);Gain of catalytic residue at L75 (P = 0.0107);Gain of catalytic residue at L75 (P = 0.0107);

MVP

0.25

ClinPred

0.042

GERP RS

-5.3

Varity_R

0.25

gMVP

0.29

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over