Variant 20-1476267-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001122962.2(SIRPB2):c.929C>T(p.Ala310Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000335 in 1,614,056 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

SIRPB2
NM_001122962.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.253

Variant links:

Genes affected

SIRPB2 (HGNC:16247): (signal regulatory protein beta 2) Predicted to be integral component of membrane. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

SIRPB2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.021440357).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SIRPB2	NM_001122962.2 linkuse as main transcript	c.929C>T	p.Ala310Val	missense_variant	5/5	ENST00000359801.8	NP_001116434.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SIRPB2	ENST00000359801.8 linkuse as main transcript	c.929C>T	p.Ala310Val	missense_variant	5/5	2	NM_001122962.2	ENSP00000352849	P1	Q5JXA9-1
SIRPB2	ENST00000444444.2 linkuse as main transcript	c.635C>T	p.Ala212Val	missense_variant	5/5	2		ENSP00000402438		Q5JXA9-3
SIRPB2	ENST00000481731.5 linkuse as main transcript	c.859+1071C>T		intron_variant, NMD_transcript_variant		5		ENSP00000432656
SIRPB2	ENST00000486775.5 linkuse as main transcript	c.859+1071C>T		intron_variant, NMD_transcript_variant		5		ENSP00000435045

Frequencies

GnomAD3 genomes

AF:

0.000224

AC:

AN:

152116

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000748

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000522

AC:

AN:

249020

Hom.:

AF XY:

0.0000296

AC XY:

AN XY:

135338

show subpopulations

Gnomad AFR exome

AF:

0.000648

Gnomad AMR exome

AF:

0.0000870

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000137

AC:

AN:

1461822

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

727226

show subpopulations

Gnomad4 AFR exome

AF:

0.000448

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.000223

AC:

AN:

152234

Hom.:

Cov.:

AF XY:

0.000255

AC XY:

AN XY:

74434

show subpopulations

Gnomad4 AFR

AF:

0.000746

Gnomad4 AMR

AF:

0.000131

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:

0.000473

Alfa

AF:

0.000197

Hom.:

Bravo

AF:

0.000193

ESP6500AA

AF:

0.000319

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000581

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 13, 2023

The c.929C>T (p.A310V) alteration is located in exon 5 (coding exon 5) of the SIRPB2 gene. This alteration results from a C to T substitution at nucleotide position 929, causing the alanine (A) at amino acid position 310 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.64

BayesDel_noAF

Benign

-0.72

CADD

Benign

4.8

DANN

Benign

0.94

DEOGEN2

Benign

0.0045

T;.

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.023

LIST_S2

Benign

0.52

T;T

M_CAP

Benign

0.0025

MetaRNN

Benign

0.021

T;T

MetaSVM

Benign

-0.92

MutationAssessor

Benign

1.0

L;.

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.32

PROVEAN

Benign

-0.73

N;N

REVEL

Benign

0.023

Sift

Benign

0.091

T;T

Sift4G

Benign

0.34

T;T

Polyphen

0.020

B;.

Vest4

0.046

MVP

0.099

MPC

0.050

ClinPred

0.020

GERP RS

-1.2

Varity_R

0.031

gMVP

0.14

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over