chr3-142449464-A-C

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001184.4(ATR):c.7900T>G(p.Cys2634Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,110 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. C2634C) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ATR
NM_001184.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 7.26

Publications

0 publications found

Variant links:

Genes affected

ATR (HGNC:882): (ATR serine/threonine kinase) The protein encoded by this gene is a serine/threonine kinase and DNA damage sensor, activating cell cycle checkpoint signaling upon DNA stress. The encoded protein can phosphorylate and activate several proteins involved in the inhibition of DNA replication and mitosis, and can promote DNA repair, recombination, and apoptosis. This protein is also important for fragile site stability and centrosome duplication. Defects in this gene are a cause of Seckel syndrome 1. [provided by RefSeq, Aug 2017]

ATR Gene-Disease associations (from GenCC):

Seckel syndrome 1
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Illumina, G2P, Ambry Genetics
sarcoma
Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
familial cutaneous telangiectasia and oropharyngeal predisposition cancer syndrome
Inheritance: Unknown, AD Classification: MODERATE, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp
Seckel syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
familial prostate carcinoma
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ATR links:

ENSG00000295506 (HGNC:):

ENSG00000295506 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.907

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ATR	NM_001184.4 link	c.7900T>G	p.Cys2634Gly	missense_variant	Exon 47 of 47	ENST00000350721.9	NP_001175.2	Q13535-1
ATR	NM_001354579.2 link	c.7708T>G	p.Cys2570Gly	missense_variant	Exon 46 of 46		NP_001341508.1
ATR	XM_011512924.2 link	c.7906T>G	p.Cys2636Gly	missense_variant	Exon 47 of 47		XP_011511226.1
ATR	XM_011512925.2 link	c.7714T>G	p.Cys2572Gly	missense_variant	Exon 46 of 46		XP_011511227.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ATR	ENST00000350721.9 link	c.7900T>G	p.Cys2634Gly	missense_variant	Exon 47 of 47	1	NM_001184.4	ENSP00000343741.4		Q13535-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460110

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726476

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33450

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26122

East Asian (EAS)

AF:

0.00

AC:

AN:

39654

South Asian (SAS)

AF:

0.00

AC:

AN:

86230

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

9.01e-7

AC:

AN:

1110396

Other (OTH)

AF:

0.00

AC:

AN:

60354

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Dec 14, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.C2634G variant (also known as c.7900T>G), located in coding exon 47 of the ATR gene, results from a T to G substitution at nucleotide position 7900. The cysteine at codon 2634 is replaced by glycine, an amino acid with highly dissimilar properties. This amino acid position is conserved. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Oct 30, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces cysteine, which is neutral and slightly polar, with glycine, which is neutral and non-polar, at codon 2634 of the ATR protein (p.Cys2634Gly). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with ATR-related conditions. ClinVar contains an entry for this variant (Variation ID: 2891774). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.41

BayesDel_addAF

Pathogenic

0.38

BayesDel_noAF

Pathogenic

0.31

CADD

Uncertain

(source)

DANN

Benign

0.92

DEOGEN2

Uncertain

0.53

Eigen

Pathogenic

0.69

Eigen_PC

Pathogenic

0.70

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.73

M_CAP

Uncertain

0.12

MetaRNN

Pathogenic

0.91

MetaSVM

Uncertain

0.030

MutationAssessor

Uncertain

2.1

PhyloP100

7.3

PrimateAI

Pathogenic

0.82

PROVEAN

Pathogenic

-7.8

REVEL

Pathogenic

0.77

Sift

Uncertain

0.013

Sift4G

Benign

0.077

Polyphen

0.99

Vest4

0.85

MutPred

0.75

Gain of disorder (P = 0.0515);

MVP

0.95

MPC

1.7

ClinPred

0.97

GERP RS

5.5

Varity_R

0.84

gMVP

0.83

Mutation Taster

=66/34

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over