rs138427412

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_002225.5(IVD):​c.891G>A​(p.Ala297Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000953 in 1,614,106 control chromosomes in the GnomAD database, including 12 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00083 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00097 ( 12 hom. )

Consequence

IVD
NM_002225.5 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: -2.66
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 -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.45).
BP6
Variant 15-40415413-G-A is Benign according to our data. Variant chr15-40415413-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 94058.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr15-40415413-G-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-2.66 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000834 (127/152264) while in subpopulation SAS AF= 0.0029 (14/4820). AF 95% confidence interval is 0.00176. There are 0 homozygotes in gnomad4. There are 61 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 12 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
IVDNM_002225.5 linkc.891G>A p.Ala297Ala synonymous_variant Exon 9 of 12 ENST00000487418.8 NP_002216.3 P26440A0A0A0MT83

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
IVDENST00000487418.8 linkc.891G>A p.Ala297Ala synonymous_variant Exon 9 of 12 1 NM_002225.5 ENSP00000418397.3 A0A0A0MT83

Frequencies

GnomAD3 genomes
AF:
0.000828
AC:
126
AN:
152146
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00118
Gnomad ASJ
AF:
0.00230
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00269
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.00104
Gnomad OTH
AF:
0.00287
GnomAD3 exomes
AF:
0.00139
AC:
350
AN:
251402
Hom.:
1
AF XY:
0.00162
AC XY:
220
AN XY:
135876
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.00119
Gnomad ASJ exome
AF:
0.00427
Gnomad EAS exome
AF:
0.000163
Gnomad SAS exome
AF:
0.00421
Gnomad FIN exome
AF:
0.0000463
Gnomad NFE exome
AF:
0.00106
Gnomad OTH exome
AF:
0.00163
GnomAD4 exome
AF:
0.000966
AC:
1412
AN:
1461842
Hom.:
12
Cov.:
31
AF XY:
0.00105
AC XY:
766
AN XY:
727218
show subpopulations
Gnomad4 AFR exome
AF:
0.000358
Gnomad4 AMR exome
AF:
0.00123
Gnomad4 ASJ exome
AF:
0.00375
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.00399
Gnomad4 FIN exome
AF:
0.0000749
Gnomad4 NFE exome
AF:
0.000641
Gnomad4 OTH exome
AF:
0.00162
GnomAD4 genome
AF:
0.000834
AC:
127
AN:
152264
Hom.:
0
Cov.:
33
AF XY:
0.000819
AC XY:
61
AN XY:
74450
show subpopulations
Gnomad4 AFR
AF:
0.000120
Gnomad4 AMR
AF:
0.00118
Gnomad4 ASJ
AF:
0.00230
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00290
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00104
Gnomad4 OTH
AF:
0.00284
Alfa
AF:
0.00128
Hom.:
1
Bravo
AF:
0.000914
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.00164
EpiControl
AF:
0.00130

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:9
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Isovaleryl-CoA dehydrogenase deficiency Benign:5
Oct 19, 2022
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Aug 06, 2019
Natera, Inc.
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

May 18, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Dec 20, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:3
Jun 18, 2018
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

May 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

IVD: BP4, BP7 -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

not specified Benign:1
Jul 12, 2016
Eurofins Ntd Llc (ga)
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.45
CADD
Benign
2.5
DANN
Benign
0.86
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs138427412; hg19: chr15-40707612; COSMIC: COSV51100439; COSMIC: COSV51100439; API