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GeneBe

rs140191819

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_017841.4(SDHAF2):​c.319C>T​(p.Arg107Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000117 in 1,614,006 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R107H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00064 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000063 ( 1 hom. )

Consequence

SDHAF2
NM_017841.4 missense

Scores

1
10
6

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 5.62
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.037219673).
BP6
Variant 11-61438062-C-T is Benign according to our data. Variant chr11-61438062-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 416795.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAd4 at 97 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SDHAF2NM_017841.4 linkuse as main transcriptc.319C>T p.Arg107Cys missense_variant 3/4 ENST00000301761.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SDHAF2ENST00000301761.7 linkuse as main transcriptc.319C>T p.Arg107Cys missense_variant 3/41 NM_017841.4 P1

Frequencies

GnomAD3 genomes
AF:
0.000638
AC:
97
AN:
152020
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00220
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000199
AC:
50
AN:
251490
Hom.:
0
AF XY:
0.000147
AC XY:
20
AN XY:
135918
show subpopulations
Gnomad AFR exome
AF:
0.00295
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:
0.000326
GnomAD4 exome
AF:
0.0000629
AC:
92
AN:
1461870
Hom.:
1
Cov.:
33
AF XY:
0.0000605
AC XY:
44
AN XY:
727238
show subpopulations
Gnomad4 AFR exome
AF:
0.00215
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.00000809
Gnomad4 OTH exome
AF:
0.0000993
GnomAD4 genome
AF:
0.000638
AC:
97
AN:
152136
Hom.:
0
Cov.:
32
AF XY:
0.000565
AC XY:
42
AN XY:
74350
show subpopulations
Gnomad4 AFR
AF:
0.00219
Gnomad4 AMR
AF:
0.000262
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000145
Hom.:
0
Bravo
AF:
0.000642
ESP6500AA
AF:
0.00341
AC:
15
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000247
AC:
30

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Benign:2
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsMar 29, 2019This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Benign, criteria provided, single submittercurationSema4, Sema4Sep 11, 2021- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Mar 12, 2018- -
SDHAF2-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesSep 14, 2023This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Hereditary pheochromocytoma-paraganglioma Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeJan 21, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Uncertain
0.020
CADD
Uncertain
24
DANN
Uncertain
1.0
Eigen
Uncertain
0.44
Eigen_PC
Uncertain
0.50
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.96
D;D;D;D
M_CAP
Uncertain
0.18
D
MetaRNN
Benign
0.037
T;T;T;T
MetaSVM
Uncertain
-0.041
T
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.71
T
PROVEAN
Pathogenic
-5.8
D;D;.;.
REVEL
Uncertain
0.53
Sift
Benign
0.047
D;T;.;.
Sift4G
Benign
0.066
T;T;T;T
Polyphen
0.64
.;P;.;.
Vest4
0.88, 0.86, 0.86
MVP
0.77
MPC
0.44
ClinPred
0.14
T
GERP RS
5.3
Varity_R
0.69
gMVP
0.60

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.

Other links and lift over

dbSNP: rs140191819; hg19: chr11-61205534; COSMIC: COSV57099657; COSMIC: COSV57099657; API