16-50154187-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001365324.3(TENT4B):​c.566G>A​(p.Arg189Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000704 in 1,506,410 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 0.00012 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000065 ( 0 hom. )

Consequence

TENT4B
NM_001365324.3 missense

Scores

1
3
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.76
Variant links:
Genes affected
TENT4B (HGNC:30758): (terminal nucleotidyltransferase 4B) Enables guanylyltransferase activity and polynucleotide adenylyltransferase activity. Involved in several processes, including RNA metabolic process; negative regulation of telomere maintenance via telomerase; and regulation of mRNA stability. Located in cytoplasm and nucleolus. Part of TRAMP complex. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.13489681).
BS2
High AC in GnomAd4 at 18 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TENT4BNM_001365324.3 linkuse as main transcriptc.566G>A p.Arg189Gln missense_variant 1/12 ENST00000561678.7 NP_001352253.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TENT4BENST00000561678.7 linkuse as main transcriptc.566G>A p.Arg189Gln missense_variant 1/125 NM_001365324.3 ENSP00000455837 P2
TENT4BENST00000436909.8 linkuse as main transcriptc.521G>A p.Arg174Gln missense_variant 2/132 ENSP00000396995 A2Q8NDF8-5
TENT4BENST00000562717.1 linkuse as main transcriptn.27G>A non_coding_transcript_exon_variant 1/135

Frequencies

GnomAD3 genomes
AF:
0.000118
AC:
18
AN:
152168
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.000176
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000759
AC:
8
AN:
105418
Hom.:
0
AF XY:
0.0000853
AC XY:
5
AN XY:
58586
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000115
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:
0.000117
Gnomad OTH exome
AF:
0.000315
GnomAD4 exome
AF:
0.0000650
AC:
88
AN:
1354242
Hom.:
0
Cov.:
33
AF XY:
0.0000689
AC XY:
46
AN XY:
667472
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000134
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:
0.0000740
Gnomad4 OTH exome
AF:
0.0000883
GnomAD4 genome
AF:
0.000118
AC:
18
AN:
152168
Hom.:
0
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74330
show subpopulations
Gnomad4 AFR
AF:
0.0000724
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000176
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.000174
ExAC
AF:
0.0000929
AC:
2

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 submitterclinical testingAmbry GeneticsMar 17, 2023The c.521G>A (p.R174Q) alteration is located in exon 2 (coding exon 2) of the PAPD5 gene. This alteration results from a G to A substitution at nucleotide position 521, causing the arginine (R) at amino acid position 174 to be replaced by a glutamine (Q). 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
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.51
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.013
.;T
Eigen
Benign
-0.27
Eigen_PC
Benign
-0.18
FATHMM_MKL
Uncertain
0.76
D
LIST_S2
Benign
0.84
T;T
M_CAP
Uncertain
0.13
D
MetaRNN
Benign
0.13
T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
0.75
D;N;N
PrimateAI
Pathogenic
0.87
D
PROVEAN
Benign
-0.15
N;N
REVEL
Benign
0.075
Sift
Benign
0.11
T;T
Sift4G
Benign
0.17
T;T
Vest4
0.19
MVP
0.24
MPC
1.4
ClinPred
0.054
T
GERP RS
2.9
gMVP
0.47

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.

Other links and lift over

dbSNP: rs767069531; hg19: chr16-50188098; API