X-96885029-A-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_013347.4(RPA4):c.719A>G(p.Asp240Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000108 in 1,208,941 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 0 hem., cov: 21)

Exomes 𝑓: 0.000010 ( 0 hom. 2 hem. )

Consequence

RPA4
NM_013347.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.98

Variant links:

Genes affected

RPA4 (HGNC:30305): (replication protein A4) This gene encodes a single-stranded DNA-binding protein that is the 30-kDa subunit of the replication protein A complex. Replication protein A is an essential factor for DNA double-strand break repair and cell cycle checkpoint activation. The encoded protein localizes to DNA repair foci and may be involved in the cellular DNA damage response. This protein may also play a role in inhibiting viral replication.[provided by RefSeq, Apr 2010]

RPA4 links:

DIAPH2 (HGNC:2877): (diaphanous related formin 2) The product of this gene belongs to the diaphanous subfamily of the formin homology family of proteins. This gene may play a role in the development and normal function of the ovaries. Defects in this gene have been linked to premature ovarian failure 2. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]

DIAPH2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.24815634).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
RPA4	NM_013347.4 linkuse as main transcript	c.719A>G	p.Asp240Gly	missense_variant	1/1	ENST00000373040.4
DIAPH2	NM_006729.5 linkuse as main transcript	c.587+3311A>G		intron_variant		ENST00000324765.13
DIAPH2	NM_007309.4 linkuse as main transcript	c.587+3311A>G		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RPA4	ENST00000373040.4 linkuse as main transcript	c.719A>G	p.Asp240Gly	missense_variant	1/1		NM_013347.4	P1
DIAPH2	ENST00000324765.13 linkuse as main transcript	c.587+3311A>G		intron_variant		1	NM_006729.5	A2	O60879-1
DIAPH2	ENST00000373049.8 linkuse as main transcript	c.587+3311A>G		intron_variant		1		P3	O60879-2

Frequencies

GnomAD3 genomes

AF:

0.0000180

AC:

AN:

110976

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33146

show subpopulations

Gnomad AFR

AF:

0.0000328

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000189

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000100

AC:

AN:

1097965

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

363325

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000131

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000180

AC:

AN:

110976

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33146

show subpopulations

Gnomad4 AFR

AF:

0.0000328

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000189

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 05, 2024

The c.719A>G (p.D240G) alteration is located in exon 1 (coding exon 1) of the RPA4 gene. This alteration results from a A to G substitution at nucleotide position 719, causing the aspartic acid (D) at amino acid position 240 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

0.15

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.58

Cadd

Benign

Dann

Benign

0.96

DEOGEN2

Benign

0.075

FATHMM_MKL

Benign

0.45

LIST_S2

Benign

0.41

M_CAP

Benign

0.013

MetaRNN

Benign

0.25

MetaSVM

Benign

-0.93

MutationAssessor

Benign

1.8

MutationTaster

Benign

1.0

N;N;N;N;N;N

PrimateAI

Benign

0.29

PROVEAN

Pathogenic

-5.0

REVEL

Benign

0.076

Sift

Uncertain

0.0050

Sift4G

Uncertain

0.0080

Polyphen

0.099

Vest4

0.18

MutPred

0.71

Loss of stability (P = 0.0846);

MVP

0.48

MPC

0.17

ClinPred

0.62

GERP RS

1.9

Varity_R

0.29

gMVP

0.54

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