11-224219-C-G

Variant names:

• chr11-224219-C-G
• rs143392832
• NM_012239.6:c.828G>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_012239.6(SIRT3):​c.828G>C​(p.Arg276Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,778 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SIRT3 NM_012239.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.549
• Publications: 0 publications found

Genes affected

SIRT3 (HGNC:14931): (sirtuin 3) SIRT3 encodes a member of the sirtuin family of class III histone deacetylases, homologs to the yeast Sir2 protein. The encoded protein is found exclusively in mitochondria, where it can eliminate reactive oxygen species, inhibit apoptosis, and prevent the formation of cancer cells. SIRT3 has far-reaching effects on nuclear gene expression, cancer, cardiovascular disease, neuroprotection, aging, and metabolic control. [provided by RefSeq, May 2019]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.124230385).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_012239.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SIRT3	NM_012239.6	MANE Select	c.828G>C	p.Arg276Ser	missense	Exon 5 of 7	NP_036371.1	Q9NTG7-1
	SIRT3	NM_001370310.1		c.828G>C	p.Arg276Ser	missense	Exon 5 of 7	NP_001357239.1
	SIRT3	NM_001370312.1		c.636G>C	p.Arg212Ser	missense	Exon 4 of 6	NP_001357241.1	E9PN58

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SIRT3	ENST00000382743.9	TSL:1 MANE Select	c.828G>C	p.Arg276Ser	missense	Exon 5 of 7	ENSP00000372191.4	Q9NTG7-1
	SIRT3	ENST00000941617.1		c.873G>C	p.Arg291Ser	missense	Exon 5 of 7	ENSP00000611676.1
	SIRT3	ENST00000852931.1		c.828G>C	p.Arg276Ser	missense	Exon 5 of 7	ENSP00000522990.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461778 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 727194

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53332

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112000

Other (OTH) AF: 0.0000166 AC: 1 AN: 60394

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.20
BayesDel_addAF	Benign	-0.10	T
BayesDel_noAF	Benign	-0.38
CADD	Benign	18
DANN	Benign	0.94
DEOGEN2	Benign	0.10	T
Eigen	Benign	-0.44
Eigen_PC	Benign	-0.31
FATHMM_MKL	Benign	0.54	D
LIST_S2	Uncertain	0.88	D
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.12	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.50	N
PhyloP100		0.55
PrimateAI	Benign	0.32	T
PROVEAN	Benign	-1.1	N
REVEL	Benign	0.15
Sift	Benign	0.28	T
Sift4G	Benign	0.48	T
Polyphen		0.14	B
Vest4		0.22
MutPred		0.40		Loss of solvent accessibility (P = 0.0094)
MVP		0.34
MPC		0.25
ClinPred		0.59	D
GERP RS		4.9
Varity_R		0.32
gMVP		0.59
Mutation Taster		=77/23	polymorphism

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

Other links and lift over

dbSNP: rs143392832; hg19: chr11-224219;