15-40405832-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_002225.5(IVD):​c.5C>T​(p.Ala2Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000304 in 1,611,620 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. A2A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

IVD
NM_002225.5 missense

Scores

3
8
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.20
Variant links:
Genes affected
IVD (HGNC:6186): (isovaleryl-CoA dehydrogenase) Isovaleryl-CoA dehydrogenase (IVD) is a mitochondrial matrix enzyme that catalyzes the third step in leucine catabolism. The genetic deficiency of IVD results in an accumulation of isovaleric acid, which is toxic to the central nervous system and leads to isovaleric acidemia. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Aug 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.4095689).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IVDNM_002225.5 linkuse as main transcriptc.5C>T p.Ala2Val missense_variant 1/12 ENST00000487418.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IVDENST00000487418.8 linkuse as main transcriptc.5C>T p.Ala2Val missense_variant 1/121 NM_002225.5 P4

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152250
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
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:
0.0000841
AC:
21
AN:
249638
Hom.:
0
AF XY:
0.0000517
AC XY:
7
AN XY:
135342
show subpopulations
Gnomad AFR exome
AF:
0.0000628
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000100
Gnomad EAS exome
AF:
0.000818
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000355
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000295
AC:
43
AN:
1459370
Hom.:
0
Cov.:
32
AF XY:
0.0000234
AC XY:
17
AN XY:
725568
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000384
Gnomad4 EAS exome
AF:
0.000202
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000270
Gnomad4 OTH exome
AF:
0.0000664
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152250
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74378
show subpopulations
Gnomad4 AFR
AF:
0.0000724
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000385
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000195
Hom.:
0
Bravo
AF:
0.0000529
ExAC
AF:
0.0000577
AC:
7
EpiCase
AF:
0.000218
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJan 03, 2024The c.14C>T (p.A5V) alteration is located in exon 1 (coding exon 1) of the IVD gene. This alteration results from a C to T substitution at nucleotide position 14, causing the alanine (A) at amino acid position 5 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
Benign
0.20
BayesDel_addAF
Uncertain
0.032
T
BayesDel_noAF
Pathogenic
0.19
CADD
Uncertain
24
DANN
Uncertain
1.0
Eigen
Uncertain
0.21
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Benign
0.72
.;T;T
M_CAP
Pathogenic
0.59
D
MetaRNN
Benign
0.41
T;T;T
MetaSVM
Uncertain
0.69
D
MutationTaster
Benign
0.65
N;N;N
PrimateAI
Uncertain
0.72
T
PROVEAN
Benign
-0.51
.;N;N
REVEL
Uncertain
0.49
Sift
Uncertain
0.0040
.;D;D
Sift4G
Benign
0.081
T;T;T
Vest4
0.65, 0.68
MVP
0.97
MPC
0.65
ClinPred
0.20
T
GERP RS
4.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.17

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: rs200977412; hg19: chr15-40698033; API