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GeneBe

16-72012054-G-A

Variant summary

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

The NM_001361.5(DHODH):c.26G>A(p.Arg9Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000039 in 1,613,954 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/23 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000038 ( 0 hom. )

Consequence

DHODH
NM_001361.5 missense

Scores

1
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.54
Variant links:
Genes affected
DHODH (HGNC:2867): (dihydroorotate dehydrogenase (quinone)) The protein encoded by this gene catalyzes the fourth enzymatic step, the ubiquinone-mediated oxidation of dihydroorotate to orotate, in de novo pyrimidine biosynthesis. This protein is a mitochondrial protein located on the outer surface of the inner mitochondrial membrane. [provided by RefSeq, Jul 2008]

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 UniProt
DHODHNM_001361.5 linkuse as main transcriptc.26G>A p.Arg9Gln missense_variant 2/9 ENST00000219240.9
DHODHXM_047433674.1 linkuse as main transcriptc.-59G>A 5_prime_UTR_variant 2/9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DHODHENST00000219240.9 linkuse as main transcriptc.26G>A p.Arg9Gln missense_variant 2/91 NM_001361.5 P3

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152148
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000561
AC:
14
AN:
249378
Hom.:
0
AF XY:
0.0000443
AC XY:
6
AN XY:
135302
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000334
Gnomad SAS exome
AF:
0.000229
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000883
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000383
AC:
56
AN:
1461688
Hom.:
0
Cov.:
32
AF XY:
0.0000426
AC XY:
31
AN XY:
727156
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000448
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000353
Gnomad4 SAS exome
AF:
0.000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000126
Gnomad4 OTH exome
AF:
0.0000994
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152266
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74452
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000386
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.0000732
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000496
AC:
6

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeDec 24, 2021This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 9 of the DHODH protein (p.Arg9Gln). This variant is present in population databases (rs201486372, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with DHODH-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.21
Cadd
Benign
22
Dann
Benign
0.97
Eigen
Benign
-0.16
Eigen_PC
Benign
-0.043
FATHMM_MKL
Uncertain
0.78
D
LIST_S2
Benign
0.85
D;D
M_CAP
Benign
0.050
D
MetaRNN
Benign
0.084
T;T
MetaSVM
Benign
-0.44
T
MutationTaster
Benign
1.0
D;D
PrimateAI
Benign
0.44
T
Sift4G
Benign
0.15
T;T
Polyphen
0.28
.;B
Vest4
0.30
MutPred
0.47
Loss of MoRF binding (P = 0.0315);Loss of MoRF binding (P = 0.0315);
MVP
0.86
MPC
0.22
ClinPred
0.058
T
GERP RS
3.5
Varity_R
0.057
gMVP
0.32

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.34
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.34
Position offset: 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: rs201486372; hg19: chr16-72045953; API