chr16-88706540-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001012759.3(CTU2):​c.10G>A​(p.Val4Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000766 in 1,305,684 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 7.7e-7 ( 0 hom. )

Consequence

CTU2
NM_001012759.3 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.33
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 Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.08201325).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CTU2NM_001012759.3 linkuse as main transcriptc.10G>A p.Val4Met missense_variant 1/15 ENST00000453996.7
CTU2NM_001318507.2 linkuse as main transcriptc.10G>A p.Val4Met missense_variant 1/15
CTU2NM_001012762.3 linkuse as main transcriptc.10G>A p.Val4Met missense_variant 1/14
CTU2NM_001318513.2 linkuse as main transcriptc.-173G>A 5_prime_UTR_variant 1/14

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CTU2ENST00000453996.7 linkuse as main transcriptc.10G>A p.Val4Met missense_variant 1/151 NM_001012759.3 P2Q2VPK5-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
7.66e-7
AC:
1
AN:
1305684
Hom.:
0
Cov.:
31
AF XY:
0.00000155
AC XY:
1
AN XY:
644042
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:
0.00
Gnomad4 NFE exome
AF:
9.58e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

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 GeneticsFeb 22, 2023The c.10G>A (p.V4M) alteration is located in exon 1 (coding exon 1) of the CTU2 gene. This alteration results from a G to A substitution at nucleotide position 10, causing the valine (V) at amino acid position 4 to be replaced by a methionine (M). 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
0.31
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
21
DANN
Benign
0.96
DEOGEN2
Benign
0.0067
T;.;.
Eigen
Benign
-0.52
Eigen_PC
Benign
-0.51
FATHMM_MKL
Benign
0.0023
N
LIST_S2
Benign
0.69
T;T;T
M_CAP
Benign
0.066
D
MetaRNN
Benign
0.082
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.0
M;M;.
MutationTaster
Benign
1.0
D;N;N;N
PrimateAI
Uncertain
0.70
T
PROVEAN
Benign
-1.4
N;N;N
REVEL
Benign
0.037
Sift
Benign
0.095
T;T;T
Sift4G
Benign
0.10
T;T;T
Polyphen
0.45
B;P;.
Vest4
0.092
MutPred
0.14
Gain of solvent accessibility (P = 0.3956);Gain of solvent accessibility (P = 0.3956);Gain of solvent accessibility (P = 0.3956);
MVP
0.10
ClinPred
0.24
T
GERP RS
1.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.048
gMVP
0.37

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-88772948; API