X-96884902-C-T

Position:

chrX-96884902-C-T

Variant summary

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

The NM_013347.4(RPA4):c.592C>T(p.Arg198Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000024 in 1,208,844 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 9 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 0.000099 ( 0 hom., 5 hem., cov: 21)

Exomes 𝑓: 0.000016 ( 0 hom. 4 hem. )

Consequence

RPA4
NM_013347.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.147

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=0.0344083).

BS2

High Hemizygotes in GnomAd4 at 5 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
RPA4	NM_013347.4 linkuse as main transcript	c.592C>T	p.Arg198Cys	missense_variant	1/1	ENST00000373040.4	NP_037479.1
DIAPH2	NM_006729.5 linkuse as main transcript	c.587+3184C>T		intron_variant		ENST00000324765.13	NP_006720.1
DIAPH2	NM_007309.4 linkuse as main transcript	c.587+3184C>T		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.592C>T	p.Arg198Cys	missense_variant	1/1		NM_013347.4	ENSP00000362131	P1
DIAPH2	ENST00000324765.13 linkuse as main transcript	c.587+3184C>T		intron_variant		1	NM_006729.5	ENSP00000321348	A2	O60879-1
DIAPH2	ENST00000373049.8 linkuse as main transcript	c.587+3184C>T		intron_variant		1		ENSP00000362140	P3	O60879-2

Frequencies

GnomAD3 genomes

AF:

0.0000992

AC:

AN:

110938

Hom.:

Cov.:

AF XY:

0.000151

AC XY:

AN XY:

33150

show subpopulations

Gnomad AFR

AF:

0.000197

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000384

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

GnomAD3 exomes

AF:

0.0000710

AC:

AN:

183089

Hom.:

AF XY:

0.0000296

AC XY:

AN XY:

67625

show subpopulations

Gnomad AFR exome

AF:

0.000456

Gnomad AMR exome

AF:

0.000255

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:

0.0000164

AC:

AN:

1097906

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

363262

show subpopulations

Gnomad4 AFR exome

AF:

0.000189

Gnomad4 AMR exome

AF:

0.000199

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:

0.00000475

Gnomad4 OTH exome

AF:

0.0000434

GnomAD4 genome

AF:

0.0000992

AC:

AN:

110938

Hom.:

Cov.:

AF XY:

0.000151

AC XY:

AN XY:

33150

show subpopulations

Gnomad4 AFR

AF:

0.000197

Gnomad4 AMR

AF:

0.000384

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

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.000185

ESP6500AA

AF:

0.000261

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000247

AC:

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

Dec 17, 2023

The c.592C>T (p.R198C) alteration is located in exon 1 (coding exon 1) of the RPA4 gene. This alteration results from a C to T substitution at nucleotide position 592, causing the arginine (R) at amino acid position 198 to be replaced by a cysteine (C). 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

0.091

BayesDel_addAF

Benign

-0.64

BayesDel_noAF

Benign

-0.82

CADD

Benign

5.4

DANN

Benign

0.92

DEOGEN2

Benign

0.0049

FATHMM_MKL

Benign

0.021

LIST_S2

Benign

0.39

M_CAP

Benign

0.0059

MetaRNN

Benign

0.034

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

MutationTaster

Benign

1.0

N;N;N;N;N;N

PrimateAI

Benign

0.25

PROVEAN

Benign

0.12

REVEL

Benign

0.061

Sift

Benign

0.18

Sift4G

Benign

0.091

Polyphen

0.017

Vest4

0.098

MVP

0.21

MPC

0.36

ClinPred

0.018

GERP RS

-0.59

Varity_R

0.062

gMVP

0.26

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