1-31728039-G-A

Variant summary

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

The NM_001364857.2(ADGRB2):​c.4558C>T​(p.Arg1520Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000108 in 1,579,142 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict 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. R1520Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000091 ( 0 hom. )

Consequence

ADGRB2
NM_001364857.2 missense

Scores

4
14

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.207
Variant links:
Genes affected
ADGRB2 (HGNC:944): (adhesion G protein-coupled receptor B2) This gene encodes a a seven-span transmembrane protein that is thought to be a member of the secretin receptor family. The encoded protein is a brain-specific inhibitor of angiogenesis. The mature peptide may be further cleaved into additional products (PMID:20367554). Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2014]

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=0.048320472).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ADGRB2NM_001364857.2 linkuse as main transcriptc.4558C>T p.Arg1520Trp missense_variant 32/33 ENST00000373658.8 NP_001351786.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ADGRB2ENST00000373658.8 linkuse as main transcriptc.4558C>T p.Arg1520Trp missense_variant 32/335 NM_001364857.2 ENSP00000362762.3 O60241-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152022
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
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:
0.00
GnomAD3 exomes
AF:
0.0000152
AC:
3
AN:
196938
Hom.:
0
AF XY:
0.0000187
AC XY:
2
AN XY:
107018
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000337
Gnomad ASJ exome
AF:
0.000110
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000377
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000911
AC:
13
AN:
1427120
Hom.:
0
Cov.:
30
AF XY:
0.00000848
AC XY:
6
AN XY:
707898
show subpopulations
Gnomad4 AFR exome
AF:
0.0000304
Gnomad4 AMR exome
AF:
0.0000247
Gnomad4 ASJ exome
AF:
0.0000392
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000242
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000728
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152022
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74248
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000262
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
ExAC
AF:
0.0000416
AC:
5

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsNov 25, 2024This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.63
CADD
Benign
17
DANN
Uncertain
1.0
DEOGEN2
Benign
0.0090
T;.;T;.
Eigen
Benign
-0.85
Eigen_PC
Benign
-0.93
FATHMM_MKL
Benign
0.0040
N
LIST_S2
Uncertain
0.86
D;D;D;D
M_CAP
Benign
0.045
D
MetaRNN
Benign
0.048
T;T;T;T
MetaSVM
Benign
-1.0
T
PrimateAI
Benign
0.28
T
PROVEAN
Benign
-0.68
N;N;N;N
REVEL
Benign
0.059
Sift
Uncertain
0.017
D;D;D;D
Sift4G
Uncertain
0.059
T;D;T;D
Polyphen
0.0
B;B;D;B
Vest4
0.19
MutPred
0.21
.;.;Loss of phosphorylation at S1521 (P = 0.077);.;
MVP
0.043
MPC
0.94
ClinPred
0.23
T
GERP RS
-3.5
Varity_R
0.071
gMVP
0.15

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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.

Other links and lift over

dbSNP: rs760122373; hg19: chr1-32193640; API