Variant 11-61430150-G-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.4G>A(p.Ala2Thr) 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 1,461,852 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: 6.8e-7 ( 0 hom. )

Consequence

SDHAF2
NM_017841.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.82

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:

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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=0.28437626).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SDHAF2	NM_017841.4 linkuse as main transcript	c.4G>A	p.Ala2Thr	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.4G>A	p.Ala2Thr	missense_variant	1/4	1	NM_017841.4	ENSP00000301761.3		Q9NX18
ENSG00000256591	ENST00000541135.5 linkuse as main transcript	c.4G>A	p.Ala2Thr	missense_variant	1/5	4		ENSP00000443130.1		F5H5T6

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461852

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727226

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Hereditary pheochromocytoma-paraganglioma

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 04, 2023

This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 2 of the SDHAF2 protein (p.Ala2Thr). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with SDHAF2-related conditions. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬†is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Uncertain

0.055

BayesDel_noAF

Benign

-0.16

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.027

.;T;.;.;.;.

Eigen

Benign

-0.27

Eigen_PC

Benign

-0.22

FATHMM_MKL

Uncertain

0.77

LIST_S2

Benign

0.54

T;T;T;T;T;T

M_CAP

Benign

0.061

MetaRNN

Benign

0.28

T;T;T;T;T;T

MetaSVM

Benign

-0.79

MutationAssessor

Benign

1.8

.;L;.;.;.;.

PrimateAI

Uncertain

0.53

PROVEAN

Benign

-0.060

N;N;.;.;.;N

REVEL

Uncertain

0.37

Sift

Uncertain

0.0030

D;D;.;.;.;D

Sift4G

Benign

0.16

T;T;.;T;T;T

Polyphen

0.54

.;P;.;.;.;.

Vest4

0.46, 0.40, 0.37, 0.47, 0.48

MutPred

0.20

Gain of glycosylation at A2 (P = 0.0438);Gain of glycosylation at A2 (P = 0.0438);Gain of glycosylation at A2 (P = 0.0438);Gain of glycosylation at A2 (P = 0.0438);Gain of glycosylation at A2 (P = 0.0438);Gain of glycosylation at A2 (P = 0.0438);

MVP

0.44

MPC

0.17

ClinPred

0.59

GERP RS

2.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.058

gMVP

0.39

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over