rs184898622

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_001077446.4(TSEN34):​c.39G>A​(p.Val13Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000799 in 1,549,440 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0039 ( 3 hom., cov: 32)
Exomes 𝑓: 0.00047 ( 1 hom. )

Consequence

TSEN34
NM_001077446.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.05

Publications

0 publications found
Variant links:
Genes affected
TSEN34 (HGNC:15506): (tRNA splicing endonuclease subunit 34) This gene encodes a catalytic subunit of the tRNA splicing endonuclease, which catalyzes the removal of introns from precursor tRNAs. The endonuclease complex is also associated with a pre-mRNA 3-prime end processing factor. A mutation in this gene results in the neurological disorder pontocerebellar hypoplasia type 2. Multiple alternatively spliced variants, encoding the same protein, have been identified.[provided by RefSeq, Oct 2009]
TSEN34 Gene-Disease associations (from GenCC):
  • pontocerebellar hypoplasia type 2C
    Inheritance: AR, Unknown Classification: STRONG, LIMITED Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), PanelApp Australia
  • pontocerebellar hypoplasia type 2
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.5).
BP6
Variant 19-54191403-G-A is Benign according to our data. Variant chr19-54191403-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 160120.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.05 with no splicing effect.
BS2
High Homozygotes in GnomAd4 at 3 AR,Unknown gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TSEN34NM_001077446.4 linkc.39G>A p.Val13Val synonymous_variant Exon 1 of 4 ENST00000396388.3 NP_001070914.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TSEN34ENST00000396388.3 linkc.39G>A p.Val13Val synonymous_variant Exon 1 of 4 1 NM_001077446.4 ENSP00000379671.2

Frequencies

GnomAD3 genomes
AF:
0.00387
AC:
589
AN:
152198
Hom.:
3
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0129
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00196
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00318
Gnomad NFE
AF:
0.000191
Gnomad OTH
AF:
0.00383
GnomAD2 exomes
AF:
0.00100
AC:
147
AN:
146602
AF XY:
0.000812
show subpopulations
Gnomad AFR exome
AF:
0.0138
Gnomad AMR exome
AF:
0.00118
Gnomad ASJ exome
AF:
0.000360
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000262
Gnomad OTH exome
AF:
0.000472
GnomAD4 exome
AF:
0.000465
AC:
650
AN:
1397130
Hom.:
1
Cov.:
35
AF XY:
0.000422
AC XY:
291
AN XY:
689292
show subpopulations
African (AFR)
AF:
0.0118
AC:
372
AN:
31524
American (AMR)
AF:
0.00134
AC:
48
AN:
35738
Ashkenazi Jewish (ASJ)
AF:
0.000636
AC:
16
AN:
25154
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35774
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79338
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48774
Middle Eastern (MID)
AF:
0.00319
AC:
13
AN:
4080
European-Non Finnish (NFE)
AF:
0.000121
AC:
131
AN:
1078950
Other (OTH)
AF:
0.00121
AC:
70
AN:
57798
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
42
84
126
168
210
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<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:
0.00386
AC:
588
AN:
152310
Hom.:
3
Cov.:
32
AF XY:
0.00385
AC XY:
287
AN XY:
74468
show subpopulations
African (AFR)
AF:
0.0129
AC:
535
AN:
41576
American (AMR)
AF:
0.00196
AC:
30
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5168
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00342
AC:
1
AN:
292
European-Non Finnish (NFE)
AF:
0.000191
AC:
13
AN:
68014
Other (OTH)
AF:
0.00379
AC:
8
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.513
Heterozygous variant carriers
0
32
63
95
126
158
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00170
Hom.:
1
Bravo
AF:
0.00488
Asia WGS
AF:
0.000579
AC:
2
AN:
3470

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Dec 16, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Oct 11, 2019
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1
Apr 25, 2013
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Pontoneocerebellar hypoplasia Benign:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.50
CADD
Benign
9.2
DANN
Benign
0.96
PhyloP100
1.1
PromoterAI
0.013
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Mutation Taster
=99/1
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs184898622; hg19: chr19-54695254; API