rs1042446

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBP6_Very_Strong

The NM_004168.4(SDHA):​c.1974G>A​(p.Pro658=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000139 in 1,443,914 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. P658P) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000014 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

SDHA
NM_004168.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -2.12
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 -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.74).
BP6
Variant 5-256399-G-A is Benign according to our data. Variant chr5-256399-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 472379.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SDHANM_004168.4 linkuse as main transcriptc.1974G>A p.Pro658= synonymous_variant 15/15 ENST00000264932.11 NP_004159.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SDHAENST00000264932.11 linkuse as main transcriptc.1974G>A p.Pro658= synonymous_variant 15/151 NM_004168.4 ENSP00000264932 P1P31040-1

Frequencies

GnomAD3 genomes
AF:
0.0000208
AC:
3
AN:
144252
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000505
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000700
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000126
AC:
3
AN:
238962
Hom.:
0
AF XY:
0.0000154
AC XY:
2
AN XY:
129518
show subpopulations
Gnomad AFR exome
AF:
0.0000653
Gnomad AMR exome
AF:
0.0000307
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:
0.00000922
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000139
AC:
18
AN:
1299548
Hom.:
0
Cov.:
32
AF XY:
0.0000123
AC XY:
8
AN XY:
650612
show subpopulations
Gnomad4 AFR exome
AF:
0.0000327
Gnomad4 AMR exome
AF:
0.0000478
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000121
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000134
Gnomad4 OTH exome
AF:
0.0000183
GnomAD4 genome
AF:
0.0000139
AC:
2
AN:
144366
Hom.:
0
Cov.:
33
AF XY:
0.0000142
AC XY:
1
AN XY:
70214
show subpopulations
Gnomad4 AFR
AF:
0.0000252
Gnomad4 AMR
AF:
0.0000699
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000397
Hom.:
0
Bravo
AF:
0.0000227

ClinVar

Significance: Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpApr 08, 2024- -
Paragangliomas 5;C5700310:Mitochondrial complex II deficiency, nuclear type 1 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 17, 2024- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxMay 10, 2018This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Hereditary cancer-predisposing syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsSep 01, 2017This 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.74
CADD
Benign
4.4
DANN
Benign
0.61
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8

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: rs1042446; hg19: chr5-256514; API