4-83485066-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_139076.3(ABRAXAS1):c.7G>A(p.Gly3Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000063 in 1,588,018 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G3A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000056 ( 0 hom. )

Consequence

ABRAXAS1
NM_139076.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 2.41

Publications

1 publications found

Variant links:

COSMIC-nc: COSV58950576

Genes affected

ABRAXAS1 (HGNC:25829): (abraxas 1, BRCA1 A complex subunit) This gene encodes a protein that binds to the C-terminal repeats of breast cancer 1 (BRCA1) through a phospho-SXXF motif. The encoded protein recruits ubiquitin interaction motif containing 1 protein to BRCA1 protein and is required for DNA damage resistance, DNA repair, and cell cycle checkpoint control. Pseudogenes of this gene are found on chromosomes 3 and 8. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2016]

ABRAXAS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.24499437).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
ABRAXAS1	NM_139076.3 link	c.7G>A	p.Gly3Arg	missense_variant	Exon 1 of 9	ENST00000321945.12	NP_620775.2
ABRAXAS1	XR_001741334.3 link	n.35G>A		non_coding_transcript_exon_variant	Exon 1 of 9
ABRAXAS1	NM_001345962.2 link	c.-254G>A		5_prime_UTR_variant	Exon 1 of 8		NP_001332891.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ABRAXAS1	ENST00000321945.12 link	c.7G>A	p.Gly3Arg	missense_variant	Exon 1 of 9	1	NM_139076.3	ENSP00000369857.3

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000444

AC:

AN:

225418

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.0000875

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS 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:

0.00000557

AC:

AN:

1435808

Hom.:

Cov.:

AF XY:

0.00000560

AC XY:

AN XY:

714596

show subpopulations

African (AFR)

AF:

0.0000656

AC:

AN:

30472

American (AMR)

AF:

0.00

AC:

AN:

42660

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25324

East Asian (EAS)

AF:

0.0000271

AC:

AN:

36938

South Asian (SAS)

AF:

0.0000120

AC:

AN:

83580

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52360

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5662

European-Non Finnish (NFE)

AF:

0.00000364

AC:

AN:

1099688

Other (OTH)

AF:

0.00

AC:

AN:

59124

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152210

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74352

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41466

American (AMR)

AF:

0.00

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000144

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.0000166

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 03, 2022

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: FAM175A c.7G>A (p.Gly3Arg) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 4.4e-06 in 225418 control chromosomes, however the available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.7G>A in individuals affected with Hereditary Breast and Ovarian Cancer Syndrome and no experimental evidence demonstrating its impact on protein function have been reported. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014. However, a different variant affecting the same nucleotide and resulting in the same missense change, c.7G>C (p.Gly3Arg), is classified as benign by our laboratory. Based on the evidence outlined above, the variant was classified as VUS-possibly benign.

not provided

Uncertain:1

Dec 02, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 3 of the ABRAXAS1 protein (p.Gly3Arg). 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. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). ClinVar contains an entry for this variant (Variation ID: 1339748). This variant has not been reported in the literature in individuals affected with ABRAXAS1-related conditions. This variant is present in population databases (rs370520589, gnomAD 0.009%).

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.72

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.27

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0045

T;.

Eigen

Uncertain

0.21

Eigen_PC

Benign

0.12

LIST_S2

Benign

0.84

T;T

M_CAP

Pathogenic

0.50

MetaRNN

Benign

0.24

T;T

MetaSVM

Benign

-0.86

MutationAssessor

Benign

0.0

.;.

PhyloP100

2.4

PrimateAI

Pathogenic

0.87

PROVEAN

Benign

-0.79

N;.

Sift

Uncertain

0.013

D;.

Sift4G

Uncertain

0.020

D;D

Vest4

0.41

ClinPred

0.45

GERP RS

3.3

PromoterAI

-0.076

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.13

gMVP

0.46

Mutation Taster

=89/11

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over