Variant 11-61430151-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_017841.4(SDHAF2):c.5C>A(p.Ala2Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,824 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SDHAF2
NM_017841.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 3.30

Variant links:

Genes affected

SDHAF2 (HGNC:26034): (succinate dehydrogenase complex assembly factor 2) This gene encodes a mitochondrial assembly factor needed for the flavination of a succinate dehydrogenase complex subunit (SDHA), which is required for activity of the succinate dehydrogenase complex. Mutations in this gene are associated with paraganglioma. [provided by RefSeq, May 2022]

SDHAF2 links:

ENSG00000256591 (HGNC:):

ENSG00000256591 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.3788792).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SDHAF2	NM_017841.4 linkuse as main transcript	c.5C>A	p.Ala2Glu	missense_variant	1/4	ENST00000301761.7	NP_060311.1	Q9NX18

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SDHAF2	ENST00000301761.7 linkuse as main transcript	c.5C>A	p.Ala2Glu	missense_variant	1/4	1	NM_017841.4	ENSP00000301761.3		Q9NX18
ENSG00000256591	ENST00000541135.5 linkuse as main transcript	c.5C>A	p.Ala2Glu	missense_variant	1/5	4		ENSP00000443130.1		F5H5T6

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000798

AC:

AN:

250698

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135630

show subpopulations

Gnomad AFR exome

AF:

0.000124

Gnomad AMR exome

AF:

0.00

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:

0.00000137

AC:

AN:

1461824

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727216

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.00

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.:

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Paragangliomas 2

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Baylor Genetics

Jul 07, 2023

- -

Hereditary cancer-predisposing syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 19, 2024

The p.A2E variant (also known as c.5C>A), located in coding exon 1 of the SDHAF2 gene, results from a C to A substitution at nucleotide position 5. The alanine at codon 2 is replaced by glutamic acid, an amino acid with dissimilar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Benign

-0.077

BayesDel_noAF

Benign

-0.11

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.020

.;T;.;.;.;.

Eigen

Uncertain

0.20

Eigen_PC

Benign

0.20

FATHMM_MKL

Uncertain

0.86

LIST_S2

Benign

0.47

T;T;T;T;T;T

M_CAP

Uncertain

0.096

MetaRNN

Benign

0.38

T;T;T;T;T;T

MetaSVM

Benign

-0.43

MutationAssessor

Benign

1.1

.;L;.;.;.;.

PrimateAI

Uncertain

0.57

PROVEAN

Benign

-0.28

N;N;.;.;.;N

REVEL

Uncertain

0.41

Sift

Uncertain

0.0010

D;D;.;.;.;D

Sift4G

Uncertain

0.015

D;T;.;T;T;T

Polyphen

0.91

.;P;.;.;.;.

Vest4

0.54, 0.45, 0.45, 0.57, 0.58

MutPred

0.20

Gain of solvent accessibility (P = 0.0411);Gain of solvent accessibility (P = 0.0411);Gain of solvent accessibility (P = 0.0411);Gain of solvent accessibility (P = 0.0411);Gain of solvent accessibility (P = 0.0411);Gain of solvent accessibility (P = 0.0411);

MVP

0.43

MPC

0.22

ClinPred

0.57

GERP RS

4.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.21

gMVP

0.46

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.070

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