16-88706560-GCCGGCGCCTGAGGAGCCGCCC-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PM4

The NM_001012759.3(CTU2):​c.39_59delTGAGGAGCCGCCCCCGGCGCC​(p.Glu14_Pro20del) variant causes a disruptive inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000548 in 1,458,760 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000054 ( 0 hom. )

Consequence

CTU2
NM_001012759.3 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.883
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]
RNF166 (HGNC:28856): (ring finger protein 166) Predicted to enable ubiquitin protein ligase activity. Predicted to be involved in protein polyubiquitination and ubiquitin-dependent protein catabolic process. Predicted to be located in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM4
Nonframeshift variant in NON repetitive region in NM_001012759.3.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CTU2NM_001012759.3 linkc.39_59delTGAGGAGCCGCCCCCGGCGCC p.Glu14_Pro20del disruptive_inframe_deletion Exon 1 of 15 ENST00000453996.7 NP_001012777.1 Q2VPK5-1
RNF166NM_178841.4 linkc.-256_-236delGGGCGGCTCCTCAGGCGCCGG upstream_gene_variant ENST00000312838.9 NP_849163.1 Q96A37-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CTU2ENST00000453996.7 linkc.39_59delTGAGGAGCCGCCCCCGGCGCC p.Glu14_Pro20del disruptive_inframe_deletion Exon 1 of 15 1 NM_001012759.3 ENSP00000388320.2 Q2VPK5-1
RNF166ENST00000312838.9 linkc.-256_-236delGGGCGGCTCCTCAGGCGCCGG upstream_gene_variant 1 NM_178841.4 ENSP00000326095.4 Q96A37-1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152076
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000536
AC:
7
AN:
1306684
Hom.:
0
AF XY:
0.00000155
AC XY:
1
AN XY:
644558
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000129
Gnomad4 ASJ exome
AF:
0.0000439
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000191
Gnomad4 OTH exome
AF:
0.0000185
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152076
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74288
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Aug 26, 2024
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In-frame deletion of 7 amino acids in a non-repeat region; In silico analysis supports a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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: rs1435342970; hg19: chr16-88772968; API