5-251354-G-A

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Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_004168.4(SDHA):​c.1680G>A​(p.Thr560=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.146 in 1,609,722 control chromosomes in the GnomAD database, including 23,907 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.24 ( 6843 hom., cov: 32)
Exomes 𝑓: 0.14 ( 17064 hom. )

Consequence

SDHA
NM_004168.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: -1.40
Variant links:
Genes affected
SDHA (HGNC:10680): (succinate dehydrogenase complex flavoprotein subunit A) This gene encodes a major catalytic subunit of succinate-ubiquinone oxidoreductase, a complex of the mitochondrial respiratory chain. The complex is composed of four nuclear-encoded subunits and is localized in the mitochondrial inner membrane. Mutations in this gene have been associated with a form of mitochondrial respiratory chain deficiency known as Leigh Syndrome. A pseudogene has been identified on chromosome 3q29. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2014]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.64).
BP6
Variant 5-251354-G-A is Benign according to our data. Variant chr5-251354-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 130276.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr5-251354-G-A is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-1.39 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.52 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SDHANM_004168.4 linkuse as main transcriptc.1680G>A p.Thr560= synonymous_variant 13/15 ENST00000264932.11 NP_004159.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SDHAENST00000264932.11 linkuse as main transcriptc.1680G>A p.Thr560= synonymous_variant 13/151 NM_004168.4 ENSP00000264932 P1P31040-1

Frequencies

GnomAD3 genomes
AF:
0.240
AC:
36411
AN:
151798
Hom.:
6815
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.525
Gnomad AMI
AF:
0.305
Gnomad AMR
AF:
0.220
Gnomad ASJ
AF:
0.165
Gnomad EAS
AF:
0.0555
Gnomad SAS
AF:
0.0880
Gnomad FIN
AF:
0.0815
Gnomad MID
AF:
0.201
Gnomad NFE
AF:
0.124
Gnomad OTH
AF:
0.233
GnomAD3 exomes
AF:
0.145
AC:
35830
AN:
246644
Hom.:
3797
AF XY:
0.138
AC XY:
18427
AN XY:
133840
show subpopulations
Gnomad AFR exome
AF:
0.529
Gnomad AMR exome
AF:
0.182
Gnomad ASJ exome
AF:
0.160
Gnomad EAS exome
AF:
0.0586
Gnomad SAS exome
AF:
0.0885
Gnomad FIN exome
AF:
0.0843
Gnomad NFE exome
AF:
0.123
Gnomad OTH exome
AF:
0.145
GnomAD4 exome
AF:
0.136
AC:
198179
AN:
1457808
Hom.:
17064
Cov.:
32
AF XY:
0.133
AC XY:
96663
AN XY:
725258
show subpopulations
Gnomad4 AFR exome
AF:
0.543
Gnomad4 AMR exome
AF:
0.185
Gnomad4 ASJ exome
AF:
0.164
Gnomad4 EAS exome
AF:
0.0479
Gnomad4 SAS exome
AF:
0.0895
Gnomad4 FIN exome
AF:
0.0879
Gnomad4 NFE exome
AF:
0.129
Gnomad4 OTH exome
AF:
0.155
GnomAD4 genome
AF:
0.240
AC:
36484
AN:
151914
Hom.:
6843
Cov.:
32
AF XY:
0.234
AC XY:
17388
AN XY:
74240
show subpopulations
Gnomad4 AFR
AF:
0.525
Gnomad4 AMR
AF:
0.220
Gnomad4 ASJ
AF:
0.165
Gnomad4 EAS
AF:
0.0550
Gnomad4 SAS
AF:
0.0882
Gnomad4 FIN
AF:
0.0815
Gnomad4 NFE
AF:
0.124
Gnomad4 OTH
AF:
0.229
Alfa
AF:
0.157
Hom.:
902
Bravo
AF:
0.267

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:11
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesJan 03, 2020- -
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015- -
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:2
Likely benign, no assertion criteria providedclinical testingGenetic Services Laboratory, University of Chicago-Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Mitochondrial complex II deficiency, nuclear type 1 Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaApr 27, 2017This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -
Paragangliomas 5;C5700310:Mitochondrial complex II deficiency, nuclear type 1 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
Leigh syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaApr 27, 2017This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -
Hereditary cancer-predisposing syndrome Benign:1
Benign, criteria provided, single submitterclinical testingAmbry GeneticsNov 18, 2014This alteration is classified as 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. -
Paragangliomas 5 Benign:1
Benign, criteria provided, single submitterclinical testingKCCC/NGS Laboratory, Kuwait Cancer Control CenterJul 07, 2023- -
Hereditary pheochromocytoma-paraganglioma Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaApr 27, 2017This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.64
CADD
Benign
4.5
DANN
Benign
0.71

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: rs1139449; hg19: chr5-251469; COSMIC: COSV53765937; API