rs752665263

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_000569.8(FCGR3A):​c.247G>A​(p.Asp83Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000173 in 1,613,896 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 38)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

FCGR3A
NM_000569.8 missense

Scores

1
17

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.398

Publications

2 publications found
Variant links:
Genes affected
FCGR3A (HGNC:3619): (Fc gamma receptor IIIa) This gene encodes a receptor for the Fc portion of immunoglobulin G, and it is involved in the removal of antigen-antibody complexes from the circulation, as well as other responses, including antibody dependent cellular mediated cytotoxicity and antibody dependent enhancement of virus infections. This gene (FCGR3A) is highly similar to another nearby gene (FCGR3B) located on chromosome 1. The receptor encoded by this gene is expressed on natural killer (NK) cells as an integral membrane glycoprotein anchored through a transmembrane peptide, whereas FCGR3B is expressed on polymorphonuclear neutrophils (PMN) where the receptor is anchored through a phosphatidylinositol (PI) linkage. Mutations in this gene are associated with immunodeficiency 20, and have been linked to susceptibility to recurrent viral infections, susceptibility to systemic lupus erythematosus, and alloimmune neonatal neutropenia. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2020]
FCGR3A Gene-Disease associations (from GenCC):
  • autosomal recessive primary immunodeficiency with defective spontaneous natural killer cell cytotoxicity
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.10107255).
BP6
Variant 1-161548493-C-T is Benign according to our data. Variant chr1-161548493-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 3514344.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000569.8. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FCGR3A
NM_000569.8
MANE Select
c.247G>Ap.Asp83Asn
missense
Exon 3 of 5NP_000560.7
FCGR3A
NM_001127592.2
c.559G>Ap.Asp187Asn
missense
Exon 3 of 5NP_001121064.2P08637
FCGR3A
NM_001329122.1
c.562G>Ap.Asp188Asn
missense
Exon 3 of 4NP_001316051.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FCGR3A
ENST00000443193.6
TSL:1 MANE Select
c.247G>Ap.Asp83Asn
missense
Exon 3 of 5ENSP00000392047.2P08637
ENSG00000289768
ENST00000699402.1
c.244G>Ap.Asp82Asn
missense
Exon 3 of 4ENSP00000514363.1A0A8V8TN80
FCGR3A
ENST00000946731.1
c.247G>Ap.Asp83Asn
missense
Exon 3 of 6ENSP00000616790.1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152236
Hom.:
0
Cov.:
38
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000318
AC:
8
AN:
251180
AF XY:
0.0000368
show subpopulations
Gnomad AFR exome
AF:
0.000123
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:
0.0000353
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000178
AC:
26
AN:
1461660
Hom.:
0
Cov.:
109
AF XY:
0.0000206
AC XY:
15
AN XY:
727138
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000598
AC:
2
AN:
33472
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000812
AC:
7
AN:
86248
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.0000135
AC:
15
AN:
1111832
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60378
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.362
Heterozygous variant carriers
0
2
4
5
7
9
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:
0.0000131
AC:
2
AN:
152236
Hom.:
0
Cov.:
38
AF XY:
0.0000134
AC XY:
1
AN XY:
74372
show subpopulations
African (AFR)
AF:
0.0000483
AC:
2
AN:
41450
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5206
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68046
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.400
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
ExAC
AF:
0.0000412
AC:
5
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Likely benign
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.42
T
BayesDel_noAF
Benign
-0.60
CADD
Benign
4.5
DANN
Benign
0.72
DEOGEN2
Benign
0.11
T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.013
N
LIST_S2
Benign
0.81
T
M_CAP
Benign
0.0033
T
MetaRNN
Benign
0.10
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.7
L
PhyloP100
-0.40
PrimateAI
Benign
0.33
T
PROVEAN
Uncertain
-2.8
D
REVEL
Benign
0.035
Sift
Benign
0.19
T
Sift4G
Benign
0.13
T
Polyphen
0.059
B
Vest4
0.25
MVP
0.21
MPC
0.14
ClinPred
0.015
T
GERP RS
-2.5
Varity_R
0.26
gMVP
0.59
Mutation Taster
=87/13
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: rs752665263; hg19: chr1-161518283; API