chr2-241680317-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP5

The NM_012145.4(DTYMK):​c.242C>T​(p.Pro81Leu) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,613,642 control chromosomes in the GnomAD database, with no homozygous occurrence. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Pathogenic (no stars). Another nucleotide change resulting in same amino acid change has been previously reported as Likely pathogenicin UniProt.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

DTYMK
NM_012145.4 missense, splice_region

Scores

5
7
7

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 8.55
Variant links:
Genes affected
DTYMK (HGNC:3061): (deoxythymidylate kinase) Enables thymidylate kinase activity. Predicted to be involved in dTDP biosynthetic process; dTTP biosynthetic process; and dUDP biosynthetic process. Predicted to act upstream of or within cellular response to growth factor stimulus and nucleotide biosynthetic process. Predicted to be located in mitochondrial intermembrane space and mitochondrial matrix. Predicted to be active in cytosol; mitochondrion; and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

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;
PP5
Variant 2-241680317-G-A is Pathogenic according to our data. Variant chr2-241680317-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 1686905.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DTYMKNM_012145.4 linkuse as main transcriptc.242C>T p.Pro81Leu missense_variant, splice_region_variant 3/5 ENST00000305784.7 NP_036277.2 P23919-1Q6FGU2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DTYMKENST00000305784.7 linkuse as main transcriptc.242C>T p.Pro81Leu missense_variant, splice_region_variant 3/51 NM_012145.4 ENSP00000304802.2 P23919-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152106
Hom.:
0
Cov.:
33
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000616
AC:
9
AN:
1461536
Hom.:
0
Cov.:
30
AF XY:
0.00000963
AC XY:
7
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:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000810
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152106
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74298
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:
0.0000147
Gnomad4 OTH
AF:
0.00
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Neurodegeneration, childhood-onset, with progressive microcephaly Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMOct 06, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Pathogenic
0.23
D
BayesDel_noAF
Uncertain
0.10
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.33
T
Eigen
Pathogenic
0.82
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.97
D
M_CAP
Benign
0.029
D
MetaRNN
Uncertain
0.72
D
MetaSVM
Benign
-0.28
T
MutationAssessor
Uncertain
2.1
M
PrimateAI
Uncertain
0.58
T
PROVEAN
Pathogenic
-6.2
D
REVEL
Pathogenic
0.72
Sift
Benign
0.068
T
Sift4G
Benign
0.085
T
Polyphen
0.85
P
Vest4
0.65
MutPred
0.45
Loss of helix (P = 0.079);
MVP
0.54
MPC
0.38
ClinPred
0.97
D
GERP RS
5.0
Varity_R
0.60
gMVP
0.77

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: rs1267106442; hg19: chr2-242619732; API