chr1-161671477-G-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP7BS2

The NM_001394477.1(FCGR2B):​c.219G>A​(p.Gly73=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00686 in 1,613,888 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0054 ( 0 hom., cov: 29)
Exomes 𝑓: 0.0070 ( 2 hom. )

Consequence

FCGR2B
NM_001394477.1 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -0.545
Variant links:
Genes affected
FCGR2B (HGNC:3618): (Fc gamma receptor IIb) The protein encoded by this gene is a low affinity receptor for the Fc region of immunoglobulin gamma complexes. The encoded protein is involved in the phagocytosis of immune complexes and in the regulation of antibody production by B-cells. Variations in this gene may increase susceptibilty to systemic lupus erythematosus (SLE). Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.84).
BP7
Synonymous conserved (PhyloP=-0.545 with no splicing effect.
BS2
High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FCGR2BNM_001394477.1 linkuse as main transcriptc.219G>A p.Gly73= synonymous_variant 3/8 ENST00000358671.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FCGR2BENST00000358671.10 linkuse as main transcriptc.219G>A p.Gly73= synonymous_variant 3/81 NM_001394477.1 P4P31994-1

Frequencies

GnomAD3 genomes
AF:
0.00540
AC:
822
AN:
152130
Hom.:
0
Cov.:
29
show subpopulations
Gnomad AFR
AF:
0.00128
Gnomad AMI
AF:
0.00329
Gnomad AMR
AF:
0.00897
Gnomad ASJ
AF:
0.00893
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00517
Gnomad FIN
AF:
0.000377
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.00798
Gnomad OTH
AF:
0.0110
GnomAD3 exomes
AF:
0.00528
AC:
1327
AN:
251438
Hom.:
1
AF XY:
0.00540
AC XY:
734
AN XY:
135888
show subpopulations
Gnomad AFR exome
AF:
0.000923
Gnomad AMR exome
AF:
0.00448
Gnomad ASJ exome
AF:
0.0136
Gnomad EAS exome
AF:
0.000218
Gnomad SAS exome
AF:
0.00431
Gnomad FIN exome
AF:
0.000370
Gnomad NFE exome
AF:
0.00731
Gnomad OTH exome
AF:
0.00733
GnomAD4 exome
AF:
0.00702
AC:
10258
AN:
1461640
Hom.:
2
Cov.:
31
AF XY:
0.00695
AC XY:
5052
AN XY:
727124
show subpopulations
Gnomad4 AFR exome
AF:
0.00149
Gnomad4 AMR exome
AF:
0.00445
Gnomad4 ASJ exome
AF:
0.0113
Gnomad4 EAS exome
AF:
0.000101
Gnomad4 SAS exome
AF:
0.00452
Gnomad4 FIN exome
AF:
0.000543
Gnomad4 NFE exome
AF:
0.00783
Gnomad4 OTH exome
AF:
0.00813
GnomAD4 genome
AF:
0.00539
AC:
821
AN:
152248
Hom.:
0
Cov.:
29
AF XY:
0.00517
AC XY:
385
AN XY:
74440
show subpopulations
Gnomad4 AFR
AF:
0.00128
Gnomad4 AMR
AF:
0.00896
Gnomad4 ASJ
AF:
0.00893
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00497
Gnomad4 FIN
AF:
0.000377
Gnomad4 NFE
AF:
0.00798
Gnomad4 OTH
AF:
0.0109
Alfa
AF:
0.00783
Hom.:
1
EpiCase
AF:
0.00992
EpiControl
AF:
0.00890

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Uncertain significance, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Uncertain significance, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJan 01, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.84
CADD
Benign
1.0
DANN
Benign
0.78

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: rs144573139; hg19: chr1-161641267; COSMIC: COSV52683461; COSMIC: COSV52683461; API