rs573603690

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_139076.3(ABRAXAS1):​c.322C>G​(p.Gln108Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000093 in 1,613,626 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q108L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

ABRAXAS1
NM_139076.3 missense

Scores

4
6
7

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 7.74

Publications

1 publications found
Variant links:
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]

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_139076.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ABRAXAS1
NM_139076.3
MANE Select
c.322C>Gp.Gln108Glu
missense
Exon 5 of 9NP_620775.2
ABRAXAS1
NM_001345962.2
c.-6C>G
5_prime_UTR_premature_start_codon_gain
Exon 4 of 8NP_001332891.1
ABRAXAS1
NM_001345962.2
c.-6C>G
5_prime_UTR
Exon 4 of 8NP_001332891.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ABRAXAS1
ENST00000321945.12
TSL:1 MANE Select
c.322C>Gp.Gln108Glu
missense
Exon 5 of 9ENSP00000369857.3
ABRAXAS1
ENST00000506553.5
TSL:5
c.175C>Gp.Gln59Glu
missense
Exon 5 of 9ENSP00000426763.1
ABRAXAS1
ENST00000505489.5
TSL:5
c.301C>Gp.Gln101Glu
missense
Exon 5 of 7ENSP00000480277.1

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152190
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000120
AC:
3
AN:
251010
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.000185
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:
0.00000479
AC:
7
AN:
1461318
Hom.:
0
Cov.:
31
AF XY:
0.00000550
AC XY:
4
AN XY:
726984
show subpopulations
African (AFR)
AF:
0.000209
AC:
7
AN:
33466
American (AMR)
AF:
0.00
AC:
0
AN:
44670
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26108
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39664
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86182
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53414
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5756
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111698
Other (OTH)
AF:
0.00
AC:
0
AN:
60360
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.411
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000525
AC:
8
AN:
152308
Hom.:
0
Cov.:
32
AF XY:
0.0000671
AC XY:
5
AN XY:
74476
show subpopulations
African (AFR)
AF:
0.000168
AC:
7
AN:
41564
American (AMR)
AF:
0.0000654
AC:
1
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.487
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000567
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Jan 17, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glutamine, which is neutral and polar, with glutamic acid, which is acidic and polar, at codon 108 of the ABRAXAS1 protein (p.Gln108Glu). This variant is present in population databases (rs573603690, gnomAD 0.02%). This missense change has been observed in individual(s) with ABRAXAS1-related conditions (PMID: 27270457). ClinVar contains an entry for this variant (Variation ID: 496534). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt ABRAXAS1 protein function with a positive predictive value of 80%. 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.

Jul 01, 2016
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: The c. 322C>G (p.Gln103Glu) in FAM178A gene is a missense change that involves a mildly conserved nucleotide and 3/5 in silico tools predict deleterious outcome. The variant is present in the control population dataset of ExAC at frequency of 0.000008 (1/121128 chrs tested). The observed frequency does not exceed the maximum expected allele frequency for a pathogenic variant of 0.00003, suggesting that it is not a common polymorphism. The variant has been reported in at least one affected individual as well as in healthy control group in one large case-control study (Renault, 2016). The variant of interest has not been reported by any reputable database/clinical laboratory. Taking together, the variant was classified as VUS until more information becomes available.

not specified Uncertain:1
Mar 29, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.Q108E variant (also known as c.322C>G), located in coding exon 5 of the FAM175A gene, results from a C to G substitution at nucleotide position 322. The glutamine at codon 108 is replaced by glutamic acid, an amino acid with highly similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.23
BayesDel_addAF
Benign
-0.038
T
BayesDel_noAF
Uncertain
-0.010
CADD
Pathogenic
27
DANN
Uncertain
0.99
DEOGEN2
Benign
0.15
T
Eigen
Pathogenic
0.84
Eigen_PC
Pathogenic
0.83
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.92
D
M_CAP
Benign
0.011
T
MetaRNN
Uncertain
0.57
D
MetaSVM
Benign
-0.55
T
PhyloP100
7.7
PrimateAI
Benign
0.45
T
PROVEAN
Benign
-2.0
N
REVEL
Uncertain
0.29
Sift
Uncertain
0.0030
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.83
MVP
0.63
MPC
0.52
ClinPred
0.92
D
GERP RS
5.0
PromoterAI
0.060
Neutral
Varity_R
0.54
gMVP
0.72
Mutation Taster
=60/40
polymorphism

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

Other links and lift over

dbSNP: rs573603690; hg19: chr4-84391510; API