3-12351653-C-G

Position:

• chr3-12351653-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The ENST00000287820.10(PPARG):​c.61C>G​(p.Leu21Val) 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. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: PPARG ENST00000287820.10 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 0.161

Genes affected

PPARG (HGNC:9236): (peroxisome proliferator activated receptor gamma) This gene encodes a member of the peroxisome proliferator-activated receptor (PPAR) subfamily of nuclear receptors. PPARs form heterodimers with retinoid X receptors (RXRs) and these heterodimers regulate transcription of various genes. Three subtypes of PPARs are known: PPAR-alpha, PPAR-delta, and PPAR-gamma. The protein encoded by this gene is PPAR-gamma and is a regulator of adipocyte differentiation. Additionally, PPAR-gamma has been implicated in the pathology of numerous diseases including obesity, diabetes, atherosclerosis and cancer. Alternatively spliced transcript variants that encode different isoforms have been described. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.07820895).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PPARG	NM_138711.6	c.-8-28051C>G		intron_variant		ENST00000651735.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PPARG	ENST00000651735.1	c.-8-28051C>G		intron_variant			NM_138711.6	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

Bravo AF: 0.0000151

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

PPARG-related disorder Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Jun 28, 2024

The PPARG c.61C>G variant is predicted to result in the amino acid substitution p.Leu21Val. To our knowledge, this variant has not been reported in the literature or in a large population database, indicating this variant is rare. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.059
BayesDel_addAF	Benign	-0.0057	T
BayesDel_noAF	Benign	-0.25
CADD	Benign	17
DANN	Uncertain	0.98
DEOGEN2	Benign	0.27	T
Eigen	Benign	-0.69
Eigen_PC	Benign	-0.59
FATHMM_MKL	Benign	0.10	N
LIST_S2	Benign	0.51	T
M_CAP	Uncertain	0.088	D
MetaRNN	Benign	0.078	T
MetaSVM	Benign	-0.39	T
MutationAssessor	Benign	0.69	N
MutationTaster	Benign	1.0	N;N;N;N;N;N;N;N
PrimateAI	Benign	0.28	T
PROVEAN	Benign	-0.080	N
REVEL	Benign	0.20
Sift	Benign	0.17	T
Sift4G	Benign	0.80	T
Polyphen		0.010	B
Vest4		0.097
MutPred		0.17		Loss of glycosylation at T20 (P = 0.0445);
MVP		0.57
MPC		0.12
ClinPred		0.079	T
GERP RS		2.0
Varity_R		0.057
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: rs572991054; hg19: chr3-12393152;