chr18-23481200-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The ENST00000339486.8(RIOK3):​c.1481A>T​(p.Asp494Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,612,128 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

RIOK3
ENST00000339486.8 missense

Scores

4
9
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.88
Variant links:
Genes affected
RIOK3 (HGNC:11451): (RIO kinase 3) This gene was first identified by the similarity of its product to the Aspergillus nidulans SUDD protein. This gene is now recognized as a member of the right open reading frame (RIO) kinase gene family. This gene encodes a serine/threonine kinase that localizes to the cytoplasm and plays a role in the processing of the pre-40 S ribosomal subunit. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RIOK3NM_003831.5 linkuse as main transcriptc.1481A>T p.Asp494Val missense_variant 13/13 ENST00000339486.8 NP_003822.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RIOK3ENST00000339486.8 linkuse as main transcriptc.1481A>T p.Asp494Val missense_variant 13/131 NM_003831.5 ENSP00000341874.3 O14730-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152244
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.00000137
AC:
2
AN:
1459884
Hom.:
0
Cov.:
29
AF XY:
0.00000138
AC XY:
1
AN XY:
726306
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000449
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152244
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74376
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000196
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:
0.0000529

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 23, 2024The c.1481A>T (p.D494V) alteration is located in exon 13 (coding exon 13) of the RIOK3 gene. This alteration results from a A to T substitution at nucleotide position 1481, causing the aspartic acid (D) at amino acid position 494 to be replaced by a valine (V). 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
Uncertain
0.55
BayesDel_addAF
Pathogenic
0.25
D
BayesDel_noAF
Uncertain
0.12
CADD
Uncertain
26
DANN
Uncertain
0.99
DEOGEN2
Benign
0.093
T;.;.
Eigen
Pathogenic
0.76
Eigen_PC
Pathogenic
0.79
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.96
D;D;D
M_CAP
Benign
0.033
D
MetaRNN
Uncertain
0.62
D;D;D
MetaSVM
Benign
-1.2
T
MutationAssessor
Uncertain
2.0
M;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.72
T
PROVEAN
Benign
-0.55
N;.;.
REVEL
Uncertain
0.40
Sift
Uncertain
0.015
D;.;.
Sift4G
Benign
0.10
T;T;T
Polyphen
1.0
D;D;D
Vest4
0.68
MutPred
0.36
Gain of helix (P = 0.0034);.;.;
MVP
0.65
MPC
0.67
ClinPred
0.90
D
GERP RS
6.0
Varity_R
0.27
gMVP
0.71

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs2057531843; hg19: chr18-21061164; API