chr1-161668740-G-A

Position:

• chr1-161668740-G-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001394477.1(FCGR2B):​c.113-1512G>A 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 0.98 (40583 hom., cov: 11)
• Consequence: FCGR2B NM_001394477.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.127

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 Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.92).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.988 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FCGR2B	NM_001394477.1	c.113-1512G>A		intron_variant		ENST00000358671.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FCGR2B	ENST00000358671.10	c.113-1512G>A		intron_variant		1	NM_001394477.1	P4

Frequencies

GnomAD3 genomes AF: 0.978 AC: 82326 AN: 84170 Hom.: 40543 Cov.: 11

Gnomad AFR AF: 0.929

Gnomad AMI AF: 1.00

Gnomad AMR AF: 0.990

Gnomad ASJ AF: 1.00

Gnomad EAS AF: 1.00

Gnomad SAS AF: 1.00

Gnomad FIN AF: 1.00

Gnomad MID AF: 0.970

Gnomad NFE AF: 0.996

Gnomad OTH AF: 0.977

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.978 AC: 82406 AN: 84250 Hom.: 40583 Cov.: 11 AF XY: 0.979 AC XY: 39594 AN XY: 40454

Gnomad4 AFR AF: 0.929

Gnomad4 AMR AF: 0.990

Gnomad4 ASJ AF: 1.00

Gnomad4 EAS AF: 1.00

Gnomad4 SAS AF: 1.00

Gnomad4 FIN AF: 1.00

Gnomad4 NFE AF: 0.996

Gnomad4 OTH AF: 0.977

Alfa AF: 0.970 Hom.: 5786

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.92
CADD	Benign	4.2
DANN	Benign	0.76

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: rs2007773; hg19: chr1-161638530;