rs28940889

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 8P and 1B. PP5_Very_StrongBP4

The NM_002225.5(IVD):​c.932C>T​(p.Ala311Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000901 in 1,614,156 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 Pathogenic (★★).

Frequency

Genomes: 𝑓 0.00073 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00092 ( 0 hom. )

Consequence

IVD
NM_002225.5 missense

Scores

5
9
3

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:18

Conservation

PhyloP100: 7.36

Publications

21 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), Myriad Women’s Health, ClinGen, G2P, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

PP5
Variant 15-40415454-C-T is Pathogenic according to our data. Variant chr15-40415454-C-T is described in ClinVar as Pathogenic. ClinVar VariationId is 100060.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP4
Computational evidence support a benign effect (MetaRNN=0.2668892). . Strength limited to SUPPORTING due to the PP5.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002225.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IVD
NM_002225.5
MANE Select
c.932C>Tp.Ala311Val
missense
Exon 9 of 12NP_002216.3A0A0A0MT83
IVD
NM_001354601.3
c.932C>Tp.Ala311Val
missense
Exon 9 of 12NP_001341530.2
IVD
NM_001354600.3
c.1019C>Tp.Ala340Val
missense
Exon 9 of 13NP_001341529.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IVD
ENST00000487418.8
TSL:1 MANE Select
c.932C>Tp.Ala311Val
missense
Exon 9 of 12ENSP00000418397.3A0A0A0MT83
IVD
ENST00000479013.7
TSL:1
c.842C>Tp.Ala281Val
missense
Exon 8 of 11ENSP00000417990.3A0A0S2Z4K7
IVD
ENST00000497816.1
TSL:1
n.309C>T
non_coding_transcript_exon
Exon 1 of 4

Frequencies

GnomAD3 genomes
AF:
0.000729
AC:
111
AN:
152200
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000283
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00141
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000641
AC:
161
AN:
251360
AF XY:
0.000640
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.000376
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000185
Gnomad NFE exome
AF:
0.00120
Gnomad OTH exome
AF:
0.000815
GnomAD4 exome
AF:
0.000919
AC:
1344
AN:
1461838
Hom.:
0
Cov.:
31
AF XY:
0.000925
AC XY:
673
AN XY:
727218
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33480
American (AMR)
AF:
0.000425
AC:
19
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86250
European-Finnish (FIN)
AF:
0.000356
AC:
19
AN:
53404
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5768
European-Non Finnish (NFE)
AF:
0.00114
AC:
1264
AN:
1111986
Other (OTH)
AF:
0.000629
AC:
38
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
77
154
232
309
386
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
50
100
150
200
250
<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:
0.000729
AC:
111
AN:
152318
Hom.:
0
Cov.:
33
AF XY:
0.000725
AC XY:
54
AN XY:
74480
show subpopulations
African (AFR)
AF:
0.000168
AC:
7
AN:
41580
American (AMR)
AF:
0.000261
AC:
4
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.000283
AC:
3
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00141
AC:
96
AN:
68032
Other (OTH)
AF:
0.000473
AC:
1
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.486
Heterozygous variant carriers
0
4
9
13
18
22
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:
0.000711
Hom.:
0
Bravo
AF:
0.000657
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.00311
AC:
12
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.000698
AC:
6
ExAC
AF:
0.000725
AC:
88
EpiCase
AF:
0.000763
EpiControl
AF:
0.000948

ClinVar

ClinVar submissions
Significance:Pathogenic
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
10
-
-
Isovaleryl-CoA dehydrogenase deficiency (10)
6
-
-
not provided (6)
1
-
-
Inborn genetic diseases (1)
1
-
-
IVD-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.49
BayesDel_addAF
Pathogenic
0.18
D
BayesDel_noAF
Pathogenic
0.48
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.67
D
Eigen
Uncertain
0.48
Eigen_PC
Uncertain
0.54
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Uncertain
0.19
D
MetaRNN
Benign
0.27
T
MetaSVM
Benign
-0.34
T
PhyloP100
7.4
PrimateAI
Uncertain
0.74
T
PROVEAN
Benign
-1.7
N
REVEL
Pathogenic
0.89
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.014
D
Vest4
0.80
MVP
0.96
MPC
0.64
ClinPred
0.14
T
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.77
Mutation Taster
=1/99
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
Splicevardb
2.0
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: rs28940889; hg19: chr15-40707653; API