rs878854592

Positions:

• chr11-112094808-C-A
• chr11-112094808-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 6P and 2B. PM1 PM2 PM5 BP6_Moderate

The NM_001276503.2(SDHD):​c.173C>A​(p.Ala58Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 9/15 in silico tools predict 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. A58S) has been classified as Pathogenic.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: SDHD NM_001276503.2 missense
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.0830

Genes affected

SDHD (HGNC:10683): (succinate dehydrogenase complex subunit D) This gene encodes a member of complex II of the respiratory chain, which is responsible for the oxidation of succinate. The encoded protein is one of two integral membrane proteins anchoring the complex to the matrix side of the mitochondrial inner membrane. Mutations in this gene are associated with the formation of tumors, including hereditary paraganglioma. Transmission of disease occurs almost exclusively through the paternal allele, suggesting that this locus may be maternally imprinted. There are pseudogenes for this gene on chromosomes 1, 2, 3, 7, and 18. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2013]

ENSG00000255292 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM1: In a chain Succinate dehydrogenase [ubiquinone] cytochrome b small subunit, mitochondrial (size 102) in uniprot entity DHSD_HUMAN there are 9 pathogenic changes around while only 0 benign (100%) in NM_001276503.2
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr11-112094807-G-T is described in Lovd as [Pathogenic].
• BP6: Variant 11-112094808-C-A is Benign according to our data. Variant chr11-112094808-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 239467.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SDHD	NM_003002.4	c.318C>A	p.Gly106Gly	synonymous_variant	4/4	ENST00000375549.8	NP_002993.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SDHD	ENST00000375549.8	c.318C>A	p.Gly106Gly	synonymous_variant	4/4	1	NM_003002.4	ENSP00000364699.3
ENSG00000255292	ENST00000532699.1	n.314+5797C>A		intron_variant		3		ENSP00000456434.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 1459370 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 725992

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.: 33

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Pheochromocytoma;C1847319:Carney-Stratakis syndrome;C1868633:Paragangliomas with sensorineural hearing loss;CN166604:Cowden syndrome 3 Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jul 12, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.27	D
BayesDel_noAF	Pathogenic	0.14
CADD	Benign	7.2
DANN	Uncertain	0.99
Eigen	Benign	-0.087
Eigen_PC	Benign	-0.12
FATHMM_MKL	Benign	0.43	N
LIST_S2	Benign	0.19	T;T
M_CAP	Benign	0.068	D
MetaRNN	Uncertain	0.51	D;T
MetaSVM	Uncertain	0.32	D
PROVEAN	Benign	-0.53	N;N
REVEL	Benign	0.28
Sift	Uncertain	0.0010	D;D
Sift4G	Uncertain	0.014	D;D
Vest4		0.68
MutPred		0.63		Loss of helix (P = 0.0104);.;
MVP		0.71
ClinPred		0.14	T
GERP RS		1.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

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: rs878854592; hg19: chr11-111965532;