Genetic Variant UTP23:p.Val118Ala (chr8-116770356-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_032334.3(UTP23):c.353T>C(p.Val118Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00000993 in 1,610,810 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

UTP23
NM_032334.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.75

Variant links:

Genes affected

UTP23 (HGNC:28224): (UTP23 small subunit processome component) Enables mRNA 3'-UTR binding activity and mRNA 5'-UTR binding activity. Predicted to be involved in rRNA processing. Predicted to act upstream of or within endonucleolytic cleavage in 5'-ETS of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA). Predicted to be part of small-subunit processome. Predicted to be active in nucleolus. Implicated in colorectal adenocarcinoma. [provided by Alliance of Genome Resources, Apr 2022]

UTP23 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
UTP23	NM_032334.3 link	c.353T>C	p.Val118Ala	missense_variant	Exon 2 of 3	ENST00000309822.7	NP_115710.2	Q9BRU9-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
UTP23	ENST00000309822.7 link	c.353T>C	p.Val118Ala	missense_variant	Exon 2 of 3	1	NM_032334.3	ENSP00000308332.2		Q9BRU9-1

Frequencies

GnomAD3 genomes

AF:

0.0000525

AC:

AN:

152262

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

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

GnomAD2 exomes

AF:

0.0000159

AC:

AN:

251056

AF XY:

0.00000737

show subpopulations

Gnomad AFR exome

AF:

0.000246

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000548

AC:

AN:

1458548

Hom.:

Cov.:

AF XY:

0.00000414

AC XY:

AN XY:

725132

show subpopulations

African (AFR)

AF:

0.000179

AC:

AN:

33452

American (AMR)

AF:

0.00

AC:

AN:

44628

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26046

East Asian (EAS)

AF:

0.00

AC:

AN:

39590

South Asian (SAS)

AF:

0.00

AC:

AN:

86030

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53312

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5746

European-Non Finnish (NFE)

AF:

9.01e-7

AC:

AN:

1109498

Other (OTH)

AF:

0.0000166

AC:

AN:

60246

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.513

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000525

AC:

AN:

152262

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74384

show subpopulations

African (AFR)

AF:

0.000193

AC:

AN:

41470

American (AMR)

AF:

0.00

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5200

South Asian (SAS)

AF:

0.00

AC:

AN:

4838

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68052

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.419

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000378

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 12, 2021

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.353T>C (p.V118A) alteration is located in exon 2 (coding exon 2) of the UTP23 gene. This alteration results from a T to C substitution at nucleotide position 353, causing the valine (V) at amino acid position 118 to be replaced by an alanine (A). 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

0.82

BayesDel_addAF

Benign

-0.060

BayesDel_noAF

Uncertain

-0.040

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.42

T;T;.

Eigen

Uncertain

0.51

Eigen_PC

Uncertain

0.57

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.78

T;T;T

M_CAP

Benign

0.020

MetaRNN

Uncertain

0.51

D;D;D

MetaSVM

Benign

-0.70

MutationAssessor

Pathogenic

3.4

M;.;.

PhyloP100

5.8

PrimateAI

Benign

0.44

PROVEAN

Uncertain

-3.4

D;D;D

REVEL

Uncertain

0.39

Sift

Uncertain

0.0030

D;D;.

Sift4G

Uncertain

0.019

D;D;.

Polyphen

0.56

P;.;.

Vest4

0.73

MVP

0.59

MPC

0.63

ClinPred

0.65

GERP RS

5.9

PromoterAI

-0.011

Neutral

(source)

Varity_R

0.25

gMVP

0.61

Mutation Taster

=62/38

polymorphism

(source)

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

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8-116770356-T-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over