rs1553266500

Positions:

• chr1-161362389-C-A
• chr1-161362389-C-G
• chr1-161362389-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1 PM2

The NM_003001.5(SDHC):​c.466C>A​(p.Leu156Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. L156L) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 31)
• Consequence: SDHC NM_003001.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0470

Genes affected

SDHC (HGNC:10682): (succinate dehydrogenase complex subunit C) This gene encodes one of four nuclear-encoded subunits that comprise succinate dehydrogenase, also known as mitochondrial complex II, a key enzyme complex of the tricarboxylic acid cycle and aerobic respiratory chains of mitochondria. The encoded protein is one of two integral membrane proteins that anchor other subunits of the complex, which form the catalytic core, to the inner mitochondrial membrane. There are several related pseudogenes for this gene on different chromosomes. Mutations in this gene have been associated with paragangliomas. Alternatively spliced transcript variants have been described. [provided by RefSeq, May 2013]

SDHC (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 15 uncertain in NM_003001.5
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SDHC	NM_003001.5	c.466C>A	p.Leu156Met	missense_variant	6/6	ENST00000367975.7	NP_002992.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SDHC	ENST00000367975.7	c.466C>A	p.Leu156Met	missense_variant	6/6	1	NM_003001.5	ENSP00000356953.3

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.020
CADD	Benign	17
DANN	Uncertain	0.99
DEOGEN2	Benign	0.22	T;.;.
Eigen	Benign	-0.51
Eigen_PC	Benign	-0.52
FATHMM_MKL	Benign	0.58	D
LIST_S2	Benign	0.71	T;T;T
M_CAP	Uncertain	0.25	D
MetaRNN	Uncertain	0.67	D;D;D
MetaSVM	Uncertain	0.16	D
PrimateAI	Benign	0.47	T
PROVEAN	Benign	-0.91	N;N;N
REVEL	Uncertain	0.57
Sift	Uncertain	0.0070	D;D;D
Sift4G	Uncertain	0.026	D;D;D
Polyphen		1.0	D;D;D
Vest4		0.39
MutPred		0.65		Loss of sheet (P = 0.0357);.;.;
MVP		0.87
MPC		3.1
ClinPred		0.99	D
GERP RS		-3.1
Varity_R		0.15
gMVP		0.62

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: chr1-161332179;