Genetic Variant FCGR2B:n.2418A>T (chr1-161675681-A-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The ENST00000480308.5(FCGR2B):n.2418A>T variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000112 in 151,874 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 29)

Exomes 𝑓: 0.000055 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

FCGR2B
ENST00000480308.5 non_coding_transcript_exon

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.559

Publications

2 publications found

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]

FCGR2B Gene-Disease associations (from GenCC):

systemic lupus erythematosus
Inheritance: Unknown Classification: SUPPORTIVE, NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

FCGR2B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.91).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FCGR2B	NM_001394477.1 link	c.817+368A>T		intron_variant	Intron 6 of 7	ENST00000358671.10	NP_001381406.1

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
FCGR2B	ENST00000480308.5 link	n.2418A>T	non_coding_transcript_exon_variant	Exon 5 of 6	1
FCGR2B	ENST00000358671.10 link	c.817+368A>T	intron_variant	Intron 6 of 7	1	NM_001394477.1	ENSP00000351497.5	P31994-1
FCGR2B	ENST00000367961.8 link	c.796+368A>T	intron_variant	Intron 5 of 6	1		ENSP00000356938.4	P31994-3
FCGR2B	ENST00000236937.13 link	c.760+1608A>T	intron_variant	Intron 5 of 6	1		ENSP00000236937.9	P31994-2

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

151874

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000339

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000548

AC:

AN:

91184

Hom.:

Cov.:

AF XY:

0.0000941

AC XY:

AN XY:

42522

show subpopulations

African (AFR)

AF:

0.000717

AC:

AN:

4182

American (AMR)

AF:

0.00

AC:

AN:

2688

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

5424

East Asian (EAS)

AF:

0.00

AC:

AN:

11676

South Asian (SAS)

AF:

0.00

AC:

AN:

1124

European-Finnish (FIN)

AF:

0.00

AC:

AN:

988

Middle Eastern (MID)

AF:

0.00

AC:

AN:

550

European-Non Finnish (NFE)

AF:

0.0000350

AC:

AN:

57134

Other (OTH)

AF:

0.00

AC:

AN:

7418

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.515

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000112

AC:

AN:

151874

Hom.:

Cov.:

AF XY:

0.0000539

AC XY:

AN XY:

74148

show subpopulations

African (AFR)

AF:

0.000339

AC:

AN:

41302

American (AMR)

AF:

0.00

AC:

AN:

15256

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4812

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10570

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

67972

Other (OTH)

AF:

0.00

AC:

AN:

2086

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.481

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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.:

2414

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.91

CADD

Benign

0.25

(source)

DANN

Benign

0.49

PhyloP100

-0.56

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over