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GeneBe

15-49634623-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001144955.2(DTWD1):c.496G>A(p.Gly166Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,613,566 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

DTWD1
NM_001144955.2 missense

Scores

18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0590
Variant links:
Genes affected
DTWD1 (HGNC:30926): (DTW domain containing 1) Enables tRNA-uridine aminocarboxypropyltransferase activity. Involved in tRNA modification. Located in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.021964699).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DTWD1NM_001144955.2 linkuse as main transcriptc.496G>A p.Gly166Ser missense_variant 4/5 ENST00000403028.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DTWD1ENST00000403028.8 linkuse as main transcriptc.496G>A p.Gly166Ser missense_variant 4/51 NM_001144955.2 P1Q8N5C7-1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152048
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:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250860
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135668
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS 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:
0.00000274
AC:
4
AN:
1461518
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727078
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152048
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74262
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000108
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000165
AC:
2

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 GeneticsJun 07, 2023The c.496G>A (p.G166S) alteration is located in exon 5 (coding exon 3) of the DTWD1 gene. This alteration results from a G to A substitution at nucleotide position 496, causing the glycine (G) at amino acid position 166 to be replaced by a serine (S). 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
0.073
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.78
Cadd
Benign
9.1
Dann
Benign
0.84
DEOGEN2
Benign
0.0017
T;T;T
Eigen
Benign
-0.75
Eigen_PC
Benign
-0.66
FATHMM_MKL
Benign
0.054
N
M_CAP
Benign
0.0032
T
MetaRNN
Benign
0.022
T;T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
-0.17
N;N;N
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.24
T
PROVEAN
Benign
0.72
N;N;N
REVEL
Benign
0.11
Sift
Benign
0.81
T;T;T
Sift4G
Benign
0.84
T;T;T
Polyphen
0.0
B;B;B
Vest4
0.10
MutPred
0.29
Gain of phosphorylation at G166 (P = 0.0441);Gain of phosphorylation at G166 (P = 0.0441);Gain of phosphorylation at G166 (P = 0.0441);
MVP
0.014
MPC
0.044
ClinPred
0.015
T
GERP RS
-0.62
Varity_R
0.020
gMVP
0.33

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: rs780169943; hg19: chr15-49926820; COSMIC: COSV52071604; COSMIC: COSV52071604; API