1-234393660-G-A

Variant summary

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

The NM_005646.4(TARBP1):​c.4421C>T​(p.Pro1474Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000703 in 1,607,102 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000066 ( 0 hom. )

Consequence

TARBP1
NM_005646.4 missense

Scores

1
8
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.18

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]

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=0.067083865).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TARBP1NM_005646.4 linkc.4421C>T p.Pro1474Leu missense_variant Exon 27 of 30 ENST00000040877.2 NP_005637.3 Q13395

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TARBP1ENST00000040877.2 linkc.4421C>T p.Pro1474Leu missense_variant Exon 27 of 30 1 NM_005646.4 ENSP00000040877.1 Q13395
TARBP1ENST00000462259.5 linkn.1006C>T non_coding_transcript_exon_variant Exon 5 of 8 1
TARBP1ENST00000483404.5 linkn.2409C>T non_coding_transcript_exon_variant Exon 4 of 7 2
TARBP1ENST00000496673.5 linkn.386C>T non_coding_transcript_exon_variant Exon 3 of 5 5

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
152170
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00374
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.000479
GnomAD2 exomes
AF:
0.000188
AC:
47
AN:
249390
AF XY:
0.000178
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000147
Gnomad ASJ exome
AF:
0.00332
Gnomad EAS exome
AF:
0.000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000660
AC:
96
AN:
1454932
Hom.:
0
Cov.:
31
AF XY:
0.0000734
AC XY:
53
AN XY:
722496
show subpopulations
African (AFR)
AF:
0.0000300
AC:
1
AN:
33334
American (AMR)
AF:
0.000113
AC:
5
AN:
44174
Ashkenazi Jewish (ASJ)
AF:
0.00223
AC:
58
AN:
25998
East Asian (EAS)
AF:
0.000202
AC:
8
AN:
39558
South Asian (SAS)
AF:
0.0000349
AC:
3
AN:
85886
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53238
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5736
European-Non Finnish (NFE)
AF:
0.00000903
AC:
10
AN:
1106898
Other (OTH)
AF:
0.000183
AC:
11
AN:
60110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.491
Heterozygous variant carriers
0
5
11
16
22
27
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000112
AC:
17
AN:
152170
Hom.:
0
Cov.:
32
AF XY:
0.0000673
AC XY:
5
AN XY:
74330
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41442
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00374
AC:
13
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68032
Other (OTH)
AF:
0.000479
AC:
1
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000167
Hom.:
0
Bravo
AF:
0.000140
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000214
AC:
26
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.0000546
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
Jul 14, 2021
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.4421C>T (p.P1474L) 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 4421, causing the proline (P) at amino acid position 1474 to be replaced by a leucine (L). 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
0.33
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.28
CADD
Pathogenic
31
DANN
Uncertain
1.0
DEOGEN2
Benign
0.13
T
Eigen
Uncertain
0.28
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.95
D
M_CAP
Benign
0.048
D
MetaRNN
Benign
0.067
T
MetaSVM
Benign
-0.76
T
MutationAssessor
Benign
1.5
L
PhyloP100
7.2
PrimateAI
Uncertain
0.68
T
PROVEAN
Uncertain
-3.4
D
REVEL
Uncertain
0.31
Sift
Benign
0.22
T
Sift4G
Uncertain
0.021
D
Polyphen
0.99
D
Vest4
0.57
MVP
0.71
MPC
0.27
ClinPred
0.21
T
GERP RS
3.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.28
gMVP
0.88
Mutation Taster
=31/69
disease causing

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

Other links and lift over

dbSNP: rs200047728; hg19: chr1-234529406; API