chr16-88707141-A-C

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_001012759.3(CTU2):ā€‹c.74A>Cā€‹(p.Glu25Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000348 in 1,613,830 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E25K) has been classified as Uncertain significance.

Frequency

Genomes: š‘“ 0.00074 ( 0 hom., cov: 33)
Exomes š‘“: 0.00031 ( 1 hom. )

Consequence

CTU2
NM_001012759.3 missense

Scores

2
16

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: 1.46
Variant links:
Genes affected
CTU2 (HGNC:28005): (cytosolic thiouridylase subunit 2) This gene encodes a protein which is involved in the post-transcriptional modification of transfer RNAs (tRNAs). The encoded protein plays a role in thiolation of uridine residue present at the wobble position in a subset of tRNAs, resulting in enhanced codon reading accuracy. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jan 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.005340576).
BP6
Variant 16-88707141-A-C is Benign according to our data. Variant chr16-88707141-A-C is described in ClinVar as [Benign]. Clinvar id is 2906481.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CTU2NM_001012759.3 linkuse as main transcriptc.74A>C p.Glu25Ala missense_variant 2/15 ENST00000453996.7
CTU2NM_001318507.2 linkuse as main transcriptc.74A>C p.Glu25Ala missense_variant 2/15
CTU2NM_001012762.3 linkuse as main transcriptc.74A>C p.Glu25Ala missense_variant 2/14
CTU2NM_001318513.2 linkuse as main transcriptc.-109A>C 5_prime_UTR_variant 2/14

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CTU2ENST00000453996.7 linkuse as main transcriptc.74A>C p.Glu25Ala missense_variant 2/151 NM_001012759.3 P2Q2VPK5-1

Frequencies

GnomAD3 genomes
AF:
0.000736
AC:
112
AN:
152138
Hom.:
0
Cov.:
33
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00933
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000162
Gnomad OTH
AF:
0.000957
GnomAD3 exomes
AF:
0.000677
AC:
170
AN:
250964
Hom.:
1
AF XY:
0.000736
AC XY:
100
AN XY:
135832
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00721
Gnomad NFE exome
AF:
0.0000882
Gnomad OTH exome
AF:
0.000652
GnomAD4 exome
AF:
0.000307
AC:
449
AN:
1461574
Hom.:
1
Cov.:
32
AF XY:
0.000312
AC XY:
227
AN XY:
727062
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00742
Gnomad4 NFE exome
AF:
0.0000351
Gnomad4 OTH exome
AF:
0.000248
GnomAD4 genome
AF:
0.000736
AC:
112
AN:
152256
Hom.:
0
Cov.:
33
AF XY:
0.00118
AC XY:
88
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00933
Gnomad4 NFE
AF:
0.000162
Gnomad4 OTH
AF:
0.000947
Alfa
AF:
0.000195
Hom.:
0
Bravo
AF:
0.0000416
ExAC
AF:
0.000667
AC:
81
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

CTU2-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMay 02, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 09, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.084
BayesDel_addAF
Benign
-0.47
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
16
DANN
Benign
0.92
DEOGEN2
Benign
0.010
T;.;.
Eigen
Benign
-0.67
Eigen_PC
Benign
-0.67
FATHMM_MKL
Benign
0.10
N
LIST_S2
Benign
0.72
T;T;T
MetaRNN
Benign
0.0053
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.2
L;L;.
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Uncertain
0.71
T
PROVEAN
Uncertain
-2.4
N;N;N
REVEL
Benign
0.067
Sift
Benign
0.41
T;T;T
Sift4G
Benign
0.50
T;T;T
Polyphen
0.063
B;B;.
Vest4
0.27
MVP
0.15
ClinPred
0.037
T
GERP RS
3.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.087
gMVP
0.35

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.13
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: rs199768298; hg19: chr16-88773549; API