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GeneBe

12-101281167-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_014503.3(UTP20):c.97C>T(p.Arg33Trp) variant causes a missense change. The variant allele was found at a frequency of 0.000013 in 1,612,978 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

UTP20
NM_014503.3 missense

Scores

9
4
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.44
Variant links:
Genes affected
UTP20 (HGNC:17897): (UTP20 small subunit processome component) UTP20 is a component of the U3 small nucleolar RNA (snoRNA) (SNORD3A; MIM 180710) protein complex (U3 snoRNP) and is involved in 18S rRNA processing (Wang et al., 2007 [PubMed 17498821]).[supplied by OMIM, Jun 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.809

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
UTP20NM_014503.3 linkuse as main transcriptc.97C>T p.Arg33Trp missense_variant 2/62 ENST00000261637.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
UTP20ENST00000261637.5 linkuse as main transcriptc.97C>T p.Arg33Trp missense_variant 2/621 NM_014503.3 P1
UTP20ENST00000551825.1 linkuse as main transcriptn.252C>T non_coding_transcript_exon_variant 2/81

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152022
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251312
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135828
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000123
AC:
18
AN:
1460956
Hom.:
0
Cov.:
30
AF XY:
0.00000688
AC XY:
5
AN XY:
726798
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000126
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152022
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74264
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000151
Asia WGS
AF:
0.000289
AC:
1
AN:
3474

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 GeneticsJan 03, 2024The c.97C>T (p.R33W) alteration is located in exon 2 (coding exon 2) of the UTP20 gene. This alteration results from a C to T substitution at nucleotide position 97, causing the arginine (R) at amino acid position 33 to be replaced by a tryptophan (W). 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
Pathogenic
0.66
BayesDel_addAF
Benign
-0.10
T
BayesDel_noAF
Benign
-0.21
Cadd
Pathogenic
32
Dann
Pathogenic
1.0
DEOGEN2
Benign
0.083
T
Eigen
Pathogenic
0.78
Eigen_PC
Pathogenic
0.72
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.96
D
M_CAP
Benign
0.064
D
MetaRNN
Pathogenic
0.81
D
MetaSVM
Benign
-0.74
T
MutationAssessor
Pathogenic
3.3
M
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.89
D
PROVEAN
Pathogenic
-5.3
D
REVEL
Uncertain
0.31
Sift
Uncertain
0.0010
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.73
MutPred
0.57
Gain of catalytic residue at D29 (P = 0.0017);
MVP
0.64
MPC
0.56
ClinPred
0.99
D
GERP RS
4.9
Varity_R
0.66
gMVP
0.71

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: rs1181779838; hg19: chr12-101674945; API