11-74006202-C-G

Variant names:

• chr11-74006202-C-G
• rs2229707
• NM_003356.4:c.304G>C

Variant summary

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

The NM_003356.4(UCP3):​c.304G>C​(p.Val102Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,828 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V102I) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: UCP3 NM_003356.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.62
• Publications: 0 publications found

Genes affected

UCP3 (HGNC:12519): (uncoupling protein 3) Mitochondrial uncoupling proteins (UCP) are members of the larger family of mitochondrial anion carrier proteins (MACP). UCPs separate oxidative phosphorylation from ATP synthesis with energy dissipated as heat, also referred to as the mitochondrial proton leak. UCPs facilitate the transfer of anions from the inner to the outer mitochondrial membrane and the return transfer of protons from the outer to the inner mitochondrial membrane. They also reduce the mitochondrial membrane potential in mammalian cells. The different UCPs have tissue-specific expression; this gene is primarily expressed in skeletal muscle. This gene's protein product is postulated to protect mitochondria against lipid-induced oxidative stress. Expression levels of this gene increase when fatty acid supplies to mitochondria exceed their oxidation capacity and the protein enables the export of fatty acids from mitochondria. UCPs contain the three solcar protein domains typically found in MACPs. Two splice variants have been found for this gene.[provided by RefSeq, Nov 2008]

ENSG00000298570 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003356.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	UCP3	NM_003356.4	MANE Select	c.304G>C	p.Val102Leu	missense	Exon 3 of 7	NP_003347.1
	UCP3	NM_022803.3		c.304G>C	p.Val102Leu	missense	Exon 3 of 6	NP_073714.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	UCP3	ENST00000314032.9	TSL:1 MANE Select	c.304G>C	p.Val102Leu	missense	Exon 3 of 7	ENSP00000323740.4
	UCP3	ENST00000426995.2	TSL:1	c.304G>C	p.Val102Leu	missense	Exon 3 of 6	ENSP00000392143.2
	UCP3	ENST00000963037.1		c.304G>C	p.Val102Leu	missense	Exon 3 of 7	ENSP00000633096.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461828 Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1 AN XY: 727210

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

American (AMR) AF: 0.00 AC: 0 AN: 44716

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

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

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53374

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1112002

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.53
BayesDel_addAF	Uncertain	0.047	T
BayesDel_noAF	Benign	-0.17
CADD	Benign	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.31	T
Eigen	Benign	-0.066
Eigen_PC	Benign	0.10
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Benign	0.036	D
MetaRNN	Uncertain	0.44	T
MetaSVM	Benign	-0.63	T
MutationAssessor	Benign	1.3	L
PhyloP100		5.6
PrimateAI	Uncertain	0.58	T
PROVEAN	Uncertain	-2.6	D
REVEL	Uncertain	0.42
Sift	Benign	0.044	D
Sift4G	Benign	0.27	T
Polyphen		0.0010	B
Vest4		0.50
MutPred		0.68		Loss of methylation at K103 (P = 0.0384)
MVP		0.53
MPC		0.044
ClinPred		0.97	D
GERP RS		5.8
Varity_R		0.52
gMVP		0.65
Mutation Taster		=68/32	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: rs2229707; hg19: chr11-73717247;