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GeneBe

12-101290192-C-G

Variant summary

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

The NM_014503.3(UTP20):c.653C>G(p.Pro218Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000156 in 1,607,398 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 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

UTP20
NM_014503.3 missense

Scores

7
6
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.73
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, 0.8

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
UTP20NM_014503.3 linkuse as main transcriptc.653C>G p.Pro218Arg missense_variant 7/62 ENST00000261637.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
UTP20ENST00000261637.5 linkuse as main transcriptc.653C>G p.Pro218Arg missense_variant 7/621 NM_014503.3 P1
UTP20ENST00000551825.1 linkuse as main transcriptn.808C>G non_coding_transcript_exon_variant 7/81
UTP20ENST00000551998.1 linkuse as main transcriptn.290C>G non_coding_transcript_exon_variant 1/23

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152096
Hom.:
0
Cov.:
32
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000323
AC:
8
AN:
247542
Hom.:
0
AF XY:
0.0000448
AC XY:
6
AN XY:
133812
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000604
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000202
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000158
AC:
23
AN:
1455302
Hom.:
0
Cov.:
31
AF XY:
0.0000152
AC XY:
11
AN XY:
723860
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000455
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000130
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000541
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152096
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74294
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:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151
ExAC
AF:
0.0000247
AC:
3

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 GeneticsAug 22, 2023The c.653C>G (p.P218R) alteration is located in exon 7 (coding exon 7) of the UTP20 gene. This alteration results from a C to G substitution at nucleotide position 653, causing the proline (P) at amino acid position 218 to be replaced by an arginine (R). 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
0.16
BayesDel_addAF
Uncertain
0.067
T
BayesDel_noAF
Pathogenic
0.14
Cadd
Pathogenic
26
Dann
Uncertain
1.0
DEOGEN2
Benign
0.082
T
Eigen
Pathogenic
0.77
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.91
D
M_CAP
Benign
0.065
D
MetaRNN
Pathogenic
0.80
D
MetaSVM
Benign
-0.33
T
MutationAssessor
Uncertain
2.9
M
MutationTaster
Benign
1.0
D
PrimateAI
Benign
0.48
T
PROVEAN
Pathogenic
-5.5
D
REVEL
Uncertain
0.52
Sift
Uncertain
0.0080
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.81
MutPred
0.34
Loss of ubiquitination at K216 (P = 0.1121);
MVP
0.89
MPC
0.56
ClinPred
0.85
D
GERP RS
5.8
Varity_R
0.50
gMVP
0.42

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs749123222; hg19: chr12-101683970; API