rs2289329

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_002225.5(IVD):​c.688-31T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.416 in 1,595,266 control chromosomes in the GnomAD database, including 146,258 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). There are indicators that this mutation may affect the branch point..

Frequency

Genomes: 𝑓 0.38 ( 12105 hom., cov: 33)
Exomes 𝑓: 0.42 ( 134153 hom. )

Consequence

IVD
NM_002225.5 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 0.944
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 Benign. Variant got -20 ACMG points.

BP4
This place is a probable branch point but rather VUS (scored 4 / 10). Computational evidence support a benign effect (BayesDel_noAF=-0.84).
BP6
Variant 15-40412960-T-C is Benign according to our data. Variant chr15-40412960-T-C is described in ClinVar as [Benign]. Clinvar id is 258591.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.75 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IVDNM_002225.5 linkuse as main transcriptc.688-31T>C intron_variant ENST00000487418.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IVDENST00000487418.8 linkuse as main transcriptc.688-31T>C intron_variant 1 NM_002225.5 P4

Frequencies

GnomAD3 genomes
AF:
0.376
AC:
57097
AN:
151972
Hom.:
12099
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.205
Gnomad AMI
AF:
0.500
Gnomad AMR
AF:
0.458
Gnomad ASJ
AF:
0.427
Gnomad EAS
AF:
0.770
Gnomad SAS
AF:
0.625
Gnomad FIN
AF:
0.461
Gnomad MID
AF:
0.487
Gnomad NFE
AF:
0.395
Gnomad OTH
AF:
0.387
GnomAD3 exomes
AF:
0.467
AC:
117090
AN:
250492
Hom.:
29691
AF XY:
0.474
AC XY:
64131
AN XY:
135362
show subpopulations
Gnomad AFR exome
AF:
0.203
Gnomad AMR exome
AF:
0.557
Gnomad ASJ exome
AF:
0.438
Gnomad EAS exome
AF:
0.776
Gnomad SAS exome
AF:
0.619
Gnomad FIN exome
AF:
0.452
Gnomad NFE exome
AF:
0.394
Gnomad OTH exome
AF:
0.438
GnomAD4 exome
AF:
0.420
AC:
606054
AN:
1443176
Hom.:
134153
Cov.:
27
AF XY:
0.426
AC XY:
306508
AN XY:
719030
show subpopulations
Gnomad4 AFR exome
AF:
0.199
Gnomad4 AMR exome
AF:
0.546
Gnomad4 ASJ exome
AF:
0.432
Gnomad4 EAS exome
AF:
0.806
Gnomad4 SAS exome
AF:
0.621
Gnomad4 FIN exome
AF:
0.452
Gnomad4 NFE exome
AF:
0.390
Gnomad4 OTH exome
AF:
0.418
GnomAD4 genome
AF:
0.376
AC:
57128
AN:
152090
Hom.:
12105
Cov.:
33
AF XY:
0.386
AC XY:
28684
AN XY:
74352
show subpopulations
Gnomad4 AFR
AF:
0.205
Gnomad4 AMR
AF:
0.459
Gnomad4 ASJ
AF:
0.427
Gnomad4 EAS
AF:
0.770
Gnomad4 SAS
AF:
0.626
Gnomad4 FIN
AF:
0.461
Gnomad4 NFE
AF:
0.395
Gnomad4 OTH
AF:
0.389
Alfa
AF:
0.392
Hom.:
12329
Bravo
AF:
0.368
Asia WGS
AF:
0.602
AC:
2091
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015- -
Isovaleryl-CoA dehydrogenase deficiency Benign:2
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 01, 2021- -
Benign, no assertion criteria providedclinical testingNatera, Inc.Apr 12, 2018- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.84
CADD
Benign
15
DANN
Benign
0.76
BranchPoint Hunter
4.0

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.15
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: rs2289329; hg19: chr15-40705159; API