rs188904436

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001244753.2(FCGR3B):​c.502G>T​(p.Gly168Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000435 in 1,608,468 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G168S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000067 ( 0 hom., cov: 28)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

FCGR3B
NM_001244753.2 missense

Scores

5
4
9

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.49
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 Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.964

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FCGR3BNM_001244753.2 linkc.502G>T p.Gly168Cys missense_variant Exon 4 of 5 ENST00000650385.1 NP_001231682.2 O75015

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FCGR3BENST00000650385.1 linkc.502G>T p.Gly168Cys missense_variant Exon 4 of 5 NM_001244753.2 ENSP00000497461.1 A0A3B3ISU3
ENSG00000289768ENST00000699402.1 linkc.40+4835G>T intron_variant Intron 1 of 3 ENSP00000514363.1 A0A8V8TN80

Frequencies

GnomAD3 genomes
AF:
0.00000666
AC:
1
AN:
150128
Hom.:
0
Cov.:
28
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:
0.0000148
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000411
AC:
6
AN:
1458340
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
725414
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00000541
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000666
AC:
1
AN:
150128
Hom.:
0
Cov.:
28
AF XY:
0.0000136
AC XY:
1
AN XY:
73276
show subpopulations
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:
0.0000148
Gnomad4 OTH
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.94
BayesDel_addAF
Uncertain
0.025
T
BayesDel_noAF
Benign
-0.20
CADD
Pathogenic
26
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.50
.;.;D;.;.
Eigen
Benign
0.0041
Eigen_PC
Benign
-0.16
FATHMM_MKL
Benign
0.54
D
LIST_S2
Benign
0.85
.;.;T;T;T
M_CAP
Benign
0.019
T
MetaRNN
Pathogenic
0.96
D;D;D;D;D
MetaSVM
Benign
-0.38
T
PrimateAI
Benign
0.46
T
PROVEAN
Pathogenic
-8.4
.;D;.;D;D
REVEL
Uncertain
0.31
Sift
Pathogenic
0.0
.;D;.;D;D
Sift4G
Pathogenic
0.0
.;D;D;D;D
Vest4
0.88, 0.86, 0.86
MutPred
0.89
Loss of disorder (P = 0.0414);Loss of disorder (P = 0.0414);.;Loss of disorder (P = 0.0414);.;
MVP
0.51
MPC
0.59
ClinPred
1.0
D
GERP RS
2.5
gMVP
0.80

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs188904436; hg19: chr1-161596010; API