rs771929559

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2

The NM_002225.5(IVD):​c.233G>A​(p.Arg78Gln) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000266 in 1,613,884 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

IVD
NM_002225.5 missense, splice_region

Scores

8
6
3
Splicing: ADA: 0.9781
1
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.21
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 4 ACMG points.

PM1
In a modified_residue N6-acetyllysine; alternate (size 0) in uniprot entity IVD_HUMAN
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IVDNM_002225.5 linkuse as main transcriptc.233G>A p.Arg78Gln missense_variant, splice_region_variant 2/12 ENST00000487418.8 NP_002216.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IVDENST00000487418.8 linkuse as main transcriptc.233G>A p.Arg78Gln missense_variant, splice_region_variant 2/121 NM_002225.5 ENSP00000418397 P4

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152200
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000398
AC:
10
AN:
251466
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135904
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000326
Gnomad SAS exome
AF:
0.0000980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000281
AC:
41
AN:
1461566
Hom.:
0
Cov.:
31
AF XY:
0.0000275
AC XY:
20
AN XY:
727114
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000655
Gnomad4 SAS exome
AF:
0.0000928
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152318
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000386
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.0000330
AC:
4

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Pathogenic
0.21
D
BayesDel_noAF
Pathogenic
0.37
CADD
Pathogenic
32
DANN
Pathogenic
1.0
Eigen
Pathogenic
0.77
Eigen_PC
Pathogenic
0.74
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.90
.;D;D
M_CAP
Pathogenic
0.33
D
MetaRNN
Uncertain
0.62
D;D;D
MetaSVM
Pathogenic
1.0
D
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Benign
0.42
T
PROVEAN
Uncertain
-2.6
.;D;D
REVEL
Pathogenic
0.76
Sift
Uncertain
0.024
.;D;T
Sift4G
Uncertain
0.017
D;T;T
Vest4
0.38
MVP
0.97
MPC
0.39
ClinPred
0.33
T
GERP RS
5.8
Varity_R
0.54

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.98
dbscSNV1_RF
Benign
0.67
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: rs771929559; hg19: chr15-40699925; COSMIC: COSV51098687; COSMIC: COSV51098687; API