1-161629930-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 4P and 4B. PM1PM2BP4_Strong

The NM_001244753.2(FCGR3B):ā€‹c.167A>Gā€‹(p.Asn56Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000113 in 1,411,026 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.0 ( 0 hom., cov: 16)
Exomes š‘“: 0.000011 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

FCGR3B
NM_001244753.2 missense

Scores

1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.322
Variant links:
Genes affected
FCGR3B (HGNC:3620): (Fc gamma receptor IIIb) The protein encoded by this gene is a low affinity receptor for the Fc region of gamma immunoglobulins (IgG). The encoded protein acts as a monomer and can bind either monomeric or aggregated IgG. This gene may function to capture immune complexes in the peripheral circulation. Several transcript variants encoding different isoforms have been found for this gene. A highly-similar gene encoding a related protein is also found on chromosome 1. [provided by RefSeq, Aug 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM1
In a glycosylation_site N-linked (GlcNAc...) asparagine (size 0) in uniprot entity FCG3B_HUMAN
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.039137006).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FCGR3BNM_001244753.2 linkuse as main transcriptc.167A>G p.Asn56Ser missense_variant 3/5 ENST00000650385.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FCGR3BENST00000650385.1 linkuse as main transcriptc.167A>G p.Asn56Ser missense_variant 3/5 NM_001244753.2 P2

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
0
AN:
107682
Hom.:
0
Cov.:
16
FAILED QC
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000404
AC:
1
AN:
247324
Hom.:
0
AF XY:
0.00000747
AC XY:
1
AN XY:
133922
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
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:
0.00000888
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000113
AC:
16
AN:
1411026
Hom.:
0
Cov.:
34
AF XY:
0.00000713
AC XY:
5
AN XY:
700904
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000236
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:
0.0000138
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
107682
Hom.:
0
Cov.:
16
AF XY:
0.00
AC XY:
0
AN XY:
51342
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

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 submitterclinical testingAmbry GeneticsMay 04, 2022The c.167A>G (p.N56S) alteration is located in exon 4 (coding exon 3) of the FCGR3B gene. This alteration results from a A to G substitution at nucleotide position 167, causing the asparagine (N) at amino acid position 56 to be replaced by a serine (S). 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
0.073
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.70
CADD
Benign
0.58
DANN
Benign
0.55
DEOGEN2
Benign
0.021
.;.;T;.;.;.;T
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.011
N
LIST_S2
Benign
0.40
.;.;T;T;T;T;T
M_CAP
Benign
0.0019
T
MetaRNN
Benign
0.039
T;T;T;T;T;T;T
MetaSVM
Benign
-0.98
T
MutationTaster
Benign
1.0
N;N;N;N;N;N;N;N
PrimateAI
Benign
0.31
T
PROVEAN
Uncertain
-2.5
.;N;.;.;N;N;N
REVEL
Benign
0.030
Sift
Benign
1.0
.;T;.;.;T;T;T
Sift4G
Benign
0.61
.;T;T;T;T;T;.
Vest4
0.20, 0.20, 0.18, 0.23, 0.28
MutPred
0.24
Gain of disorder (P = 0.0497);Gain of disorder (P = 0.0497);.;.;Gain of disorder (P = 0.0497);.;.;
MVP
0.13
MPC
1.4
ClinPred
0.052
T
GERP RS
0.071
gMVP
0.12

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1209332043; hg19: chr1-161599720; API