X-96884903-G-A

Position:

chrX-96884903-G-A

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_013347.4(RPA4):c.593G>A(p.Arg198His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000794 in 1,208,821 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 31 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 0.000090 ( 0 hom., 2 hem., cov: 21)

Exomes 𝑓: 0.000078 ( 0 hom. 29 hem. )

Consequence

RPA4
NM_013347.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.112

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 Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.017601013).

BS2

High Hemizygotes in GnomAd4 at 2 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
RPA4	NM_013347.4 linkuse as main transcript	c.593G>A	p.Arg198His	missense_variant	1/1	ENST00000373040.4	NP_037479.1
DIAPH2	NM_006729.5 linkuse as main transcript	c.587+3185G>A		intron_variant		ENST00000324765.13	NP_006720.1
DIAPH2	NM_007309.4 linkuse as main transcript	c.587+3185G>A		intron_variant			NP_009293.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RPA4	ENST00000373040.4 linkuse as main transcript	c.593G>A	p.Arg198His	missense_variant	1/1		NM_013347.4	ENSP00000362131	P1
DIAPH2	ENST00000324765.13 linkuse as main transcript	c.587+3185G>A		intron_variant		1	NM_006729.5	ENSP00000321348	A2	O60879-1
DIAPH2	ENST00000373049.8 linkuse as main transcript	c.587+3185G>A		intron_variant		1		ENSP00000362140	P3	O60879-2

Frequencies

GnomAD3 genomes

AF:

0.0000900

AC:

AN:

111057

Hom.:

Cov.:

AF XY:

0.0000602

AC XY:

AN XY:

33245

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000192

Gnomad ASJ

AF:

0.00303

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000131

AC:

AN:

183060

Hom.:

AF XY:

0.000118

AC XY:

AN XY:

67598

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000182

Gnomad ASJ exome

AF:

0.00174

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000612

Gnomad OTH exome

AF:

0.000221

GnomAD4 exome

AF:

0.0000783

AC:

AN:

1097764

Hom.:

Cov.:

AF XY:

0.0000799

AC XY:

AN XY:

363136

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000114

Gnomad4 ASJ exome

AF:

0.00320

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:

0.000195

GnomAD4 genome

AF:

0.0000900

AC:

AN:

111057

Hom.:

Cov.:

AF XY:

0.0000602

AC XY:

AN XY:

33245

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000192

Gnomad4 ASJ

AF:

0.00303

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000160

Hom.:

Bravo

AF:

0.000113

ExAC

AF:

0.0000824

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000178

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 03, 2022

The c.593G>A (p.R198H) alteration is located in exon 1 (coding exon 1) of the RPA4 gene. This alteration results from a G to A substitution at nucleotide position 593, causing the arginine (R) at amino acid position 198 to be replaced by a histidine (H). 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

0.074

BayesDel_addAF

Benign

-0.67

BayesDel_noAF

Benign

-0.93

CADD

Benign

0.35

DANN

Benign

0.56

DEOGEN2

Benign

0.0037

FATHMM_MKL

Benign

0.017

LIST_S2

Benign

0.33

M_CAP

Benign

0.0036

MetaRNN

Benign

0.018

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

MutationTaster

Benign

1.0

N;N;N;N;N;N

PrimateAI

Benign

0.24

PROVEAN

Benign

0.080

REVEL

Benign

0.075

Sift

Benign

0.54

Sift4G

Benign

0.23

Polyphen

0.96

Vest4

0.051

MutPred

0.49

Loss of solvent accessibility (P = 0.0364);

MVP

0.19

MPC

0.30

ClinPred

0.047

GERP RS

-2.2

Varity_R

0.025

gMVP

0.19

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