Genetic Variant PWWP3A:p.Ala79Gly (chr19-1360157-C-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001369789.1(PWWP3A):c.236C>G(p.Ala79Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000706 in 1,415,508 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/18 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

PWWP3A
NM_001369789.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.428

Variant links:

Genes affected

PWWP3A (HGNC:29641): (PWWP domain containing 3A, DNA repair factor) Enables nucleosome binding activity. Involved in DNA repair and chromatin organization. Located in cytosol and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

PWWP3A links:

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ACMG classification

Classification made for transcript

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=0.2010923).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PWWP3A	NM_001369789.1 link	c.236C>G	p.Ala79Gly	missense_variant	Exon 5 of 14	ENST00000591337.7	NP_001356718.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PWWP3A	ENST00000591337.7 link	c.236C>G	p.Ala79Gly	missense_variant	Exon 5 of 14	2	NM_001369789.1	ENSP00000467287.4		Q2TAK8-1K7EP97

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000470

AC:

AN:

212854

Hom.:

AF XY:

0.00000875

AC XY:

AN XY:

114270

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000440

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

7.06e-7

AC:

AN:

1415508

Hom.:

Cov.:

AF XY:

0.00000143

AC XY:

AN XY:

700494

show subpopulations

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:

0.0000127

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 01, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.239C>G (p.A80G) alteration is located in exon 5 (coding exon 4) of the MUM1 gene. This alteration results from a C to G substitution at nucleotide position 239, causing the alanine (A) at amino acid position 80 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

0.16

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.47

CADD

Benign

DANN

Uncertain

0.98

Eigen

Benign

-0.016

Eigen_PC

Benign

-0.18

FATHMM_MKL

Benign

0.18

LIST_S2

Benign

0.50

.;T;.;T

M_CAP

Benign

0.037

MetaRNN

Benign

0.20

T;T;T;T

MetaSVM

Benign

-0.86

PrimateAI

Benign

0.30

PROVEAN

Benign

-1.2

.;.;N;.

REVEL

Benign

0.16

Sift

Uncertain

0.0080

.;.;D;.

Sift4G

Uncertain

0.015

D;T;T;T

Vest4

0.13, 0.13

MVP

0.53

ClinPred

0.30

GERP RS

4.7

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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