1-234393807-G-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_005646.4(TARBP1):c.4274C>T(p.Ala1425Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000533 in 1,612,806 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A1425G) has been classified as Uncertain significance.

Frequency

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

Exomes 𝑓: 0.000056 ( 1 hom. )

Consequence

TARBP1
NM_005646.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.52

Publications

1 publications found

Variant links:

Genes affected

TARBP1 (HGNC:11568): (TAR (HIV-1) RNA binding protein 1) HIV-1, the causative agent of acquired immunodeficiency syndrome (AIDS), contains an RNA genome that produces a chromosomally integrated DNA during the replicative cycle. Activation of HIV-1 gene expression by the transactivator Tat is dependent on an RNA regulatory element (TAR) located downstream of the transcription initiation site. This element forms a stable stem-loop structure and can be bound by either the protein encoded by this gene or by RNA polymerase II. This protein may act to disengage RNA polymerase II from TAR during transcriptional elongation. Alternatively spliced transcripts of this gene may exist, but their full-length natures have not been determined. [provided by RefSeq, Jul 2008]

TARBP1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.014340907).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TARBP1	NM_005646.4 link	c.4274C>T	p.Ala1425Val	missense_variant	Exon 27 of 30	ENST00000040877.2	NP_005637.3	Q13395

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TARBP1	ENST00000040877.2 link	c.4274C>T	p.Ala1425Val	missense_variant	Exon 27 of 30	1	NM_005646.4	ENSP00000040877.1	Q13395
TARBP1	ENST00000462259.5 link	n.859C>T		non_coding_transcript_exon_variant	Exon 5 of 8	1
TARBP1	ENST00000483404.5 link	n.2262C>T		non_coding_transcript_exon_variant	Exon 4 of 7	2
TARBP1	ENST00000496673.5 link	n.239C>T		non_coding_transcript_exon_variant	Exon 3 of 5	5

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152044

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000128

AC:

AN:

250934

AF XY:

0.000103

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000580

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.0000561

AC:

AN:

1460644

Hom.:

Cov.:

AF XY:

0.0000509

AC XY:

AN XY:

726500

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33354

American (AMR)

AF:

0.0000448

AC:

AN:

44648

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26114

East Asian (EAS)

AF:

0.000580

AC:

AN:

39684

South Asian (SAS)

AF:

0.000476

AC:

AN:

86200

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53262

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000900

AC:

AN:

1111276

Other (OTH)

AF:

0.0000829

AC:

AN:

60340

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.499

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152162

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74400

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41490

American (AMR)

AF:

0.00

AC:

AN:

15266

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000193

AC:

AN:

5182

South Asian (SAS)

AF:

0.000414

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10590

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68020

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.563

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000136

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.000140

AC:

Asia WGS

AF:

0.00231

AC:

AN:

3478

EpiCase

AF:

0.0000547

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 22, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.4274C>T (p.A1425V) alteration is located in exon 27 (coding exon 27) of the TARBP1 gene. This alteration results from a C to T substitution at nucleotide position 4274, causing the alanine (A) at amino acid position 1425 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

0.083

BayesDel_addAF

Benign

-0.61

BayesDel_noAF

Benign

-0.75

CADD

Benign

(source)

DANN

Benign

0.86

DEOGEN2

Benign

0.0058

Eigen

Benign

-0.85

Eigen_PC

Benign

-0.84

FATHMM_MKL

Benign

0.33

LIST_S2

Benign

0.71

M_CAP

Benign

0.0062

MetaRNN

Benign

0.014

MetaSVM

Benign

-0.94

MutationAssessor

Benign

0.34

PhyloP100

2.5

PrimateAI

Benign

0.29

PROVEAN

Benign

-0.030

REVEL

Benign

0.029

Sift

Benign

0.27

Sift4G

Benign

0.17

Polyphen

0.15

Vest4

0.14

MVP

0.11

MPC

0.039

ClinPred

0.025

GERP RS

2.6

Varity_R

0.021

gMVP

0.41

Mutation Taster

=95/5

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

1-234393807-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over