rs1060503707

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004168.4(SDHA):​c.44G>A​(p.Arg15His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: not found (cov: 34)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

SDHA
NM_004168.4 missense

Scores

1
1
17

Clinical Significance

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

Conservation

PhyloP100: 0.779
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]
CCDC127 (HGNC:30520): (coiled-coil domain containing 127) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.14670742).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SDHANM_004168.4 linkc.44G>A p.Arg15His missense_variant Exon 1 of 15 ENST00000264932.11 NP_004159.2 P31040-1A0A024QZ30
CCDC127NM_145265.3 linkc.-317C>T upstream_gene_variant ENST00000296824.4 NP_660308.1 Q96BQ5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SDHAENST00000264932.11 linkc.44G>A p.Arg15His missense_variant Exon 1 of 15 1 NM_004168.4 ENSP00000264932.6 P31040-1
ENSG00000286001ENST00000651543.1 linkn.44G>A non_coding_transcript_exon_variant Exon 1 of 24 ENSP00000499215.1 A0A494C1T6
CCDC127ENST00000296824.4 linkc.-317C>T upstream_gene_variant 1 NM_145265.3 ENSP00000296824.2 Q96BQ5

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD4 exome
Data not reliable, filtered out with message: AC0;AS_VQSR
AF:
0.00
AC:
0
AN:
1293920
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
638568
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
34

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:1
Apr 17, 2023
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Hereditary cancer-predisposing syndrome Uncertain:1
Nov 24, 2020
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.R15H variant (also known as c.44G>A), located in coding exon 1 of the SDHA gene, results from a G to A substitution at nucleotide position 44. The arginine at codon 15 is replaced by histidine, an amino acid with highly similar properties. This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.24
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.44
CADD
Benign
19
DANN
Benign
0.92
DEOGEN2
Benign
0.26
T;T;.;.
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.11
N
LIST_S2
Benign
0.80
T;T;T;T
M_CAP
Pathogenic
0.39
D
MetaRNN
Benign
0.15
T;T;T;T
MetaSVM
Benign
-0.93
T
MutationAssessor
Benign
-0.14
.;N;.;N
PrimateAI
Uncertain
0.69
T
PROVEAN
Benign
-0.63
.;N;N;N
REVEL
Benign
0.11
Sift
Benign
0.15
.;T;D;T
Sift4G
Benign
0.11
T;T;T;T
Polyphen
0.0
.;B;B;.
Vest4
0.34
MutPred
0.60
Gain of ubiquitination at K20 (P = 0.0582);Gain of ubiquitination at K20 (P = 0.0582);Gain of ubiquitination at K20 (P = 0.0582);Gain of ubiquitination at K20 (P = 0.0582);
MVP
0.23
MPC
0.72
ClinPred
0.090
T
GERP RS
0.76
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.033
gMVP
0.41

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr5-218514; API