NM_145267.3:c.27G>C

Variant names:

• chr6-70566967-G-C
• rs199743679
• NM_145267.3:c.27G>C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_145267.3(SDHAF4):​c.27G>C​(p.Leu9Phe) 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. 13/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: SDHAF4 NM_145267.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.572

Genes affected

SDHAF4 (HGNC:20957): (succinate dehydrogenase complex assembly factor 4) Predicted to enable enzyme activator activity. Involved in cellular respiration and mitochondrial respiratory chain complex II assembly. Predicted to be located in mitochondrial matrix. Predicted to be active in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.046181947).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SDHAF4	NM_145267.3	c.27G>C	p.Leu9Phe	missense_variant	Exon 1 of 3	ENST00000370474.4	NP_660310.2
SDHAF4	XM_047418210.1	c.27G>C	p.Leu9Phe	missense_variant	Exon 1 of 3		XP_047274166.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SDHAF4	ENST00000370474.4	c.27G>C	p.Leu9Phe	missense_variant	Exon 1 of 3	1	NM_145267.3	ENSP00000359505.3
SDHAF4	ENST00000468640.1	n.51G>C		non_coding_transcript_exon_variant	Exon 1 of 2	3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1440236 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 714114

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.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.060
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.68
CADD	Benign	2.0
DANN	Benign	0.64
DEOGEN2	Benign	0.016	T
Eigen	Benign	-1.3
Eigen_PC	Benign	-1.3
FATHMM_MKL	Benign	0.057	N
LIST_S2	Benign	0.33	T
M_CAP	Benign	0.0034	T
MetaRNN	Benign	0.046	T
MetaSVM	Benign	-0.98	T
PROVEAN	Benign	-0.43	N
REVEL	Benign	0.019
Sift	Uncertain	0.019	D
Sift4G	Benign	0.085	T
Polyphen		0.0	B
Vest4		0.14
MutPred		0.29		Loss of helix (P = 0.0167);
MVP		0.055
MPC		0.097
ClinPred		0.080	T
GERP RS		-1.7
Varity_R		0.067
gMVP		0.18

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: rs199743679; hg19: chr6-71276670;