rs566691073

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_002225.5(IVD):​c.-8T>C variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000683 in 1,611,470 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

IVD
NM_002225.5 5_prime_UTR

Scores

4
3
9

Clinical Significance

Uncertain significance criteria provided, single submitter P:1U:1

Conservation

PhyloP100: -1.61

Publications

1 publications found
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]
IVD Gene-Disease associations (from GenCC):
  • isovaleric acidemia
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Myriad Women’s Health, G2P, ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.938

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
IVDNM_002225.5 linkc.-8T>C 5_prime_UTR_variant Exon 1 of 12 ENST00000487418.8 NP_002216.3 P26440A0A0A0MT83

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
IVDENST00000487418.8 linkc.-8T>C 5_prime_UTR_variant Exon 1 of 12 1 NM_002225.5 ENSP00000418397.3 A0A0A0MT83

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152272
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000160
AC:
4
AN:
249708
AF XY:
0.0000148
show subpopulations
Gnomad AFR exome
AF:
0.0000630
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000886
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.00000617
AC:
9
AN:
1459080
Hom.:
0
Cov.:
31
AF XY:
0.00000689
AC XY:
5
AN XY:
725330
show subpopulations
African (AFR)
AF:
0.0000599
AC:
2
AN:
33394
American (AMR)
AF:
0.00
AC:
0
AN:
44642
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26068
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39626
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86126
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53298
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5562
European-Non Finnish (NFE)
AF:
0.00000180
AC:
2
AN:
1110142
Other (OTH)
AF:
0.0000332
AC:
2
AN:
60222
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.481
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152390
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74526
show subpopulations
African (AFR)
AF:
0.0000481
AC:
2
AN:
41600
American (AMR)
AF:
0.00
AC:
0
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10632
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

Isovaleryl-CoA dehydrogenase deficiency Pathogenic:1Uncertain:1
May 08, 2017
Counsyl
Significance:Likely pathogenic
Review Status:no assertion criteria provided
Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

Dec 03, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change affects the initiator methionine of the IVD mRNA. The next in-frame methionine is located at codon 4. This variant is present in population databases (rs566691073, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with IVD-related conditions. ClinVar contains an entry for this variant (Variation ID: 551816). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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
BayesDel_addAF
Pathogenic
0.50
D
BayesDel_noAF
Benign
-0.16
CADD
Benign
0.77
DANN
Benign
0.22
DEOGEN2
Benign
0.37
.;T;.
Eigen
Benign
-2.0
Eigen_PC
Benign
-2.2
FATHMM_MKL
Benign
0.036
N
LIST_S2
Uncertain
0.90
.;D;D
M_CAP
Pathogenic
0.33
D
MetaRNN
Pathogenic
0.94
D;D;D
MetaSVM
Uncertain
-0.18
T
PhyloP100
-1.6
PROVEAN
Benign
-0.53
.;N;N
REVEL
Benign
0.24
Sift
Pathogenic
0.0
.;D;D
Sift4G
Uncertain
0.0040
D;D;D
Vest4
0.11, 0.11
MutPred
0.99
Gain of helix (P = 0.0325);Gain of helix (P = 0.0325);Gain of helix (P = 0.0325);
MVP
0.47
ClinPred
0.079
T
GERP RS
-8.8
PromoterAI
0.20
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.57

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

Other links and lift over

dbSNP: rs566691073; hg19: chr15-40698021; API