rs538460237

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBS1BS2_Supporting

The NM_002168.4(IDH2):​c.890T>C​(p.Val297Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000595 in 1,614,110 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000033 ( 1 hom., cov: 32)
Exomes 𝑓: 0.000062 ( 1 hom. )

Consequence

IDH2
NM_002168.4 missense

Scores

1
4
14

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 3.25
Variant links:
Genes affected
IDH2 (HGNC:5383): (isocitrate dehydrogenase (NADP(+)) 2) Isocitrate dehydrogenases catalyze the oxidative decarboxylation of isocitrate to 2-oxoglutarate. These enzymes belong to two distinct subclasses, one of which utilizes NAD(+) as the electron acceptor and the other NADP(+). Five isocitrate dehydrogenases have been reported: three NAD(+)-dependent isocitrate dehydrogenases, which localize to the mitochondrial matrix, and two NADP(+)-dependent isocitrate dehydrogenases, one of which is mitochondrial and the other predominantly cytosolic. Each NADP(+)-dependent isozyme is a homodimer. The protein encoded by this gene is the NADP(+)-dependent isocitrate dehydrogenase found in the mitochondria. It plays a role in intermediary metabolism and energy production. This protein may tightly associate or interact with the pyruvate dehydrogenase complex. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.023733795).
BP6
Variant 15-90087189-A-G is Benign according to our data. Variant chr15-90087189-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 435488.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.0000328 (5/152242) while in subpopulation SAS AF= 0.00104 (5/4824). AF 95% confidence interval is 0.000408. There are 1 homozygotes in gnomad4. There are 2 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 5 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
IDH2NM_002168.4 linkc.890T>C p.Val297Ala missense_variant Exon 7 of 11 ENST00000330062.8 NP_002159.2 P48735-1
IDH2NM_001289910.1 linkc.734T>C p.Val245Ala missense_variant Exon 7 of 11 NP_001276839.1 P48735-2
IDH2NM_001290114.2 linkc.500T>C p.Val167Ala missense_variant Exon 5 of 9 NP_001277043.1 P48735B4DSZ6

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
IDH2ENST00000330062.8 linkc.890T>C p.Val297Ala missense_variant Exon 7 of 11 1 NM_002168.4 ENSP00000331897.4 P48735-1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152124
Hom.:
1
Cov.:
32
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:
0.00
Gnomad SAS
AF:
0.00104
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000167
AC:
42
AN:
251488
Hom.:
2
AF XY:
0.000213
AC XY:
29
AN XY:
135922
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00121
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000622
AC:
91
AN:
1461868
Hom.:
1
Cov.:
33
AF XY:
0.0000866
AC XY:
63
AN XY:
727236
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000893
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000809
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152242
Hom.:
1
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74452
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00104
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151
ExAC
AF:
0.000189
AC:
23
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Dec 30, 2016
Genetic Services Laboratory, University of Chicago
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

D-2-hydroxyglutaric aciduria 2 Benign:1
Aug 22, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.21
BayesDel_addAF
Benign
-0.064
T
BayesDel_noAF
Uncertain
0.090
CADD
Benign
19
DANN
Benign
0.63
DEOGEN2
Benign
0.30
T;T;.
Eigen
Benign
-0.83
Eigen_PC
Benign
-0.59
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Uncertain
0.90
D;D;D
M_CAP
Benign
0.038
D
MetaRNN
Benign
0.024
T;T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
-0.44
N;.;.
PrimateAI
Pathogenic
0.85
D
PROVEAN
Benign
1.6
N;N;N
REVEL
Uncertain
0.36
Sift
Benign
1.0
T;T;T
Sift4G
Benign
1.0
T;T;T
Polyphen
0.0060
B;.;.
Vest4
0.31
MutPred
0.72
Loss of stability (P = 0.0155);.;.;
MVP
0.48
MPC
0.67
ClinPred
0.048
T
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.36
gMVP
0.82

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs538460237; hg19: chr15-90630421; API