rs757932443

Positions:

• chr5-240427-T-A
• chr5-240427-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_004168.4(SDHA):​c.1502T>A​(p.Phe501Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,446 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: SDHA NM_004168.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.52

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]

ACMG classification

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=0.23393863).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SDHA	NM_004168.4	c.1502T>A	p.Phe501Tyr	missense_variant	11/15	ENST00000264932.11	NP_004159.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SDHA	ENST00000264932.11	c.1502T>A	p.Phe501Tyr	missense_variant	11/15	1	NM_004168.4	ENSP00000264932	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000399 AC: 1 AN: 250460 Hom.: 0 AF XY: 0.00000737 AC XY: 1 AN XY: 135628

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000327

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1459446 Hom.: 0 Cov.: 29 AF XY: 0.00000138 AC XY: 1 AN XY: 726072

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: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.091
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.31
CADD	Benign	19
DANN	Benign	0.97
DEOGEN2	Benign	0.23	T;T;.;.
Eigen	Benign	0.14
Eigen_PC	Uncertain	0.25
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.90	D;D;D;D
M_CAP	Benign	0.028	D
MetaRNN	Benign	0.23	T;T;T;T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	0.22	.;N;.;.
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.75	T
PROVEAN	Benign	0.36	.;N;N;N
REVEL	Benign	0.13
Sift	Benign	1.0	.;T;T;T
Sift4G	Benign	1.0	T;T;T;T
Polyphen		0.0	.;B;B;.
Vest4		0.38
MutPred		0.25		.;Gain of phosphorylation at F501 (P = 0.0502);Gain of phosphorylation at F501 (P = 0.0502);.;
MVP		0.79
MPC		0.55
ClinPred		0.51	D
GERP RS		5.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.25
gMVP		0.63

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

Other links and lift over

dbSNP: rs757932443; hg19: chr5-240542;