Genetic Variant PPARA:p.Ser21Gly (chr22-46198444-A-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_005036.6(PPARA):c.61A>G(p.Ser21Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,834 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

PPARA
NM_005036.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.37

Variant links:

Genes affected

PPARA (HGNC:9232): (peroxisome proliferator activated receptor alpha) Peroxisome proliferators include hypolipidemic drugs, herbicides, leukotriene antagonists, and plasticizers; this term arises because they induce an increase in the size and number of peroxisomes. Peroxisomes are subcellular organelles found in plants and animals that contain enzymes for respiration and for cholesterol and lipid metabolism. The action of peroxisome proliferators is thought to be mediated via specific receptors, called PPARs, which belong to the steroid hormone receptor superfamily. PPARs affect the expression of target genes involved in cell proliferation, cell differentiation and in immune and inflammation responses. Three closely related subtypes (alpha, beta/delta, and gamma) have been identified. This gene encodes the subtype PPAR-alpha, which is a nuclear transcription factor. Multiple alternatively spliced transcript variants have been described for this gene, although the full-length nature of only two has been determined. [provided by RefSeq, Jul 2008]

PPARA links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PPARA	NM_005036.6 link	c.61A>G	p.Ser21Gly	missense_variant	Exon 4 of 9	ENST00000407236.6	NP_005027.2	Q07869-1F1D8S4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PPARA	ENST00000407236.6 link	c.61A>G	p.Ser21Gly	missense_variant	Exon 4 of 9	1	NM_005036.6	ENSP00000385523.1		Q07869-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251476

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135914

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000867

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461834

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727220

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000671

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.:

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 26, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.61A>G (p.S21G) alteration is located in exon 4 (coding exon 1) of the PPARA gene. This alteration results from a A to G substitution at nucleotide position 61, causing the serine (S) at amino acid position 21 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.079

BayesDel_addAF

Pathogenic

0.19

BayesDel_noAF

Pathogenic

0.24

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.21

.;T;.;T;T

Eigen

Uncertain

0.33

Eigen_PC

Uncertain

0.35

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.76

T;T;T;.;.

M_CAP

Uncertain

0.21

MetaRNN

Uncertain

0.45

T;T;T;T;T

MetaSVM

Pathogenic

0.85

MutationAssessor

Uncertain

2.3

.;M;.;M;M

PrimateAI

Uncertain

0.51

PROVEAN

Uncertain

-4.0

D;N;N;N;N

REVEL

Uncertain

0.51

Sift

Uncertain

0.011

D;T;T;T;T

Sift4G

Pathogenic

0.0

D;T;T;T;T

Polyphen

0.86

.;P;.;P;P

Vest4

0.56, 0.55, 0.62

MutPred

0.24

Loss of phosphorylation at S21 (P = 0.0176);Loss of phosphorylation at S21 (P = 0.0176);Loss of phosphorylation at S21 (P = 0.0176);Loss of phosphorylation at S21 (P = 0.0176);Loss of phosphorylation at S21 (P = 0.0176);

MVP

0.93

ClinPred

0.40

GERP RS

5.7

Varity_R

0.13

gMVP

0.49

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over