rs922087

Variant names:

• chr1-161670305-C-T
• rs922087
• NM_001394477.1:c.133+33C>T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001394477.1(FCGR2B):​c.133+33C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. 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 0.0 (0 hom., cov: 0)
  • Exomes 𝑓: 0.37 (179 hom.)
  • Failed GnomAD Quality Control
• Consequence: FCGR2B NM_001394477.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.775

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]

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FCGR2B	NM_001394477.1	c.133+33C>T		intron_variant	Intron 2 of 7	ENST00000358671.10	NP_001381406.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FCGR2B	ENST00000358671.10	c.133+33C>T		intron_variant	Intron 2 of 7	1	NM_001394477.1	ENSP00000351497.5

Frequencies

GnomAD3 genomes AF: 0.00 AC: 0 AN: 2 Hom.: 0 Cov.: 0 FAILED QC

Gnomad AFR AF: 0.00

GnomAD3 exomes AF: 0.409 AC: 27 AN: 66 Hom.: 7 AF XY: 0.375 AC XY: 15 AN XY: 40

Gnomad AMR exome AF: 0.500

Gnomad EAS exome AF: 1.00

Gnomad SAS exome AF: 0.227

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.500

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 0.369 AC: 834 AN: 2260 Hom.: 179 Cov.: 0 AF XY: 0.357 AC XY: 409 AN XY: 1146

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.491

Gnomad4 ASJ exome AF: 0.333

Gnomad4 EAS exome AF: 0.600

Gnomad4 SAS exome AF: 0.288

Gnomad4 NFE exome AF: 0.311

Gnomad4 OTH exome AF: 0.292

GnomAD4 genome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 2 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 0

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

Alfa AF: 0.0993 Hom.: 76

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	1.5
DANN	Benign	0.47

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

Other links and lift over

dbSNP: rs922087; hg19: chr1-161640095;