Variant chr17-4720954-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 2P and 8B. PM1BP4_StrongBS2

The NM_004313.4(ARRB2):c.1145C>T(p.Thr382Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000809 in 1,613,840 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00061 ( 1 hom., cov: 31)

Exomes 𝑓: 0.00083 ( 3 hom. )

Consequence

ARRB2
NM_004313.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.00

Variant links:

Genes affected

ARRB2 (HGNC:712): (arrestin beta 2) Members of arrestin/beta-arrestin protein family are thought to participate in agonist-mediated desensitization of G-protein-coupled receptors and cause specific dampening of cellular responses to stimuli such as hormones, neurotransmitters, or sensory signals. Arrestin beta 2, like arrestin beta 1, was shown to inhibit beta-adrenergic receptor function in vitro. It is expressed at high levels in the central nervous system and may play a role in the regulation of synaptic receptors. Besides the brain, a cDNA for arrestin beta 2 was isolated from thyroid gland, and thus it may also be involved in hormone-specific desensitization of TSH receptors. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2012]

ARRB2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

PM1

In a mutagenesis_site Reduces interaction with CHUK; when associated with A-360. (size 0) in uniprot entity ARRB2_HUMAN

BP4

Computational evidence support a benign effect (MetaRNN=0.014249206).

BS2

High AC in GnomAd4 at 93 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ARRB2	NM_004313.4 linkuse as main transcript	c.1145C>T	p.Thr382Ile	missense_variant	15/15	ENST00000269260.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ARRB2	ENST00000269260.7 linkuse as main transcript	c.1145C>T	p.Thr382Ile	missense_variant	15/15	1	NM_004313.4	P1	P32121-1

Frequencies

GnomAD3 genomes

AF:

0.000611

AC:

AN:

152124

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000377

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00113

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000625

AC:

157

AN:

251392

Hom.:

AF XY:

0.000574

AC XY:

AN XY:

135864

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000868

Gnomad ASJ exome

AF:

0.00387

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000231

Gnomad NFE exome

AF:

0.000941

Gnomad OTH exome

AF:

0.000489

GnomAD4 exome

AF:

0.000829

AC:

1212

AN:

1461716

Hom.:

Cov.:

AF XY:

0.000857

AC XY:

623

AN XY:

727168

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.000134

Gnomad4 ASJ exome

AF:

0.00360

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000412

Gnomad4 NFE exome

AF:

0.000925

Gnomad4 OTH exome

AF:

0.000994

GnomAD4 genome

AF:

0.000611

AC:

AN:

152124

Hom.:

Cov.:

AF XY:

0.000605

AC XY:

AN XY:

74324

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00288

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000377

Gnomad4 NFE

AF:

0.00113

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.00107

Hom.:

Bravo

AF:

0.000597

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000778

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000930

AC:

ExAC

AF:

0.000552

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00147

EpiControl

AF:

0.000652

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

Sep 17, 2021

The c.1145C>T (p.T382I) alteration is located in exon 15 (coding exon 15) of the ARRB2 gene. This alteration results from a C to T substitution at nucleotide position 1145, causing the threonine (T) at amino acid position 382 to be replaced by an isoleucine (I). 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

0.17

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.45

CADD

Benign

DANN

Benign

0.93

DEOGEN2

Benign

0.41

T;T;.;T;.;.;T

Eigen

Benign

-0.51

Eigen_PC

Benign

-0.41

FATHMM_MKL

Uncertain

0.79

LIST_S2

Uncertain

0.87

D;.;T;.;D;D;T

M_CAP

Benign

0.033

MetaRNN

Benign

0.014

T;T;T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.3

L;.;.;.;.;.;.

MutationTaster

Benign

0.53

D;D;N;N;N;N;N;N

PrimateAI

Uncertain

0.72

PROVEAN

Benign

-0.97

N;.;.;.;.;.;.

REVEL

Benign

0.026

Sift

Benign

0.11

T;.;.;.;.;.;.

Sift4G

Benign

0.17

T;T;T;T;T;T;T

Polyphen

0.014

B;.;P;.;.;.;.

Vest4

0.28

MVP

0.53

MPC

2.0

ClinPred

0.052

GERP RS

3.1

Varity_R

0.091

gMVP

0.16

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.

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