rs1050501

chr1-161674008-T-Achr1-161674008-T-C

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP4

The NM_001394477.1(FCGR2B):c.695T>A(p.Ile232Asn) variant causes a missense 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. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I232T) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 10)
• Consequence: FCGR2B NM_001394477.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.740

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]

(HGNC:):

ACMG classification

Verdict is Likely_benign. Variant got -1 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.4141266).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FCGR2B	NM_001394477.1	c.695T>A	p.Ile232Asn	missense_variant	5/8	ENST00000358671.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FCGR2B	ENST00000358671.10	c.695T>A	p.Ile232Asn	missense_variant	5/8	1	NM_001394477.1	P4
	ENST00000453111.1	n.197+620A>T		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes Cov.: 10

GnomAD4 exome Cov.: 5

GnomAD4 genome Cov.: 10

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.57
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.43
Cadd	Benign	20
Dann	Uncertain	0.99
Eigen	Benign	-0.22
Eigen_PC	Benign	-0.38
FATHMM_MKL	Benign	0.060	N
LIST_S2	Uncertain	0.91	D;D;D
M_CAP	Benign	0.0089	T
MetaRNN	Benign	0.41	T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.4	L;.;L
MutationTaster	Benign	1.0	N;N;N;N;N;N;N
PrimateAI	Benign	0.39	T
PROVEAN	Uncertain	-3.5	D;D;D
REVEL	Benign	0.066
Sift	Uncertain	0.0030	D;D;D
Sift4G	Uncertain	0.0040	D;D;D
Polyphen		0.97	D;D;D
Vest4		0.48
MutPred		0.41		Gain of catalytic residue at I232 (P = 0.0296);.;Gain of catalytic residue at I232 (P = 0.0296);
MVP		0.31
MPC		1.7
ClinPred		0.91	D
GERP RS		2.9
Varity_R		0.14
gMVP		0.50

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: rs1050501; hg19: chr1-161643798;