rs142923780

Variant names:

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_005896.4(IDH1):c.94T>G(p.Phe32Val) variant causes a missense change. The variant allele was found at a frequency of 0.000534 in 1,613,954 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00042 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00055 ( 1 hom. )

Consequence

IDH1
NM_005896.4 missense

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3O:1

Conservation

PhyloP100: 5.37

Publications

17 publications found

Variant links:

Genes affected

IDH1 (HGNC:5382): (isocitrate dehydrogenase (NADP(+)) 1) 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 cytoplasm and peroxisomes. It contains the PTS-1 peroxisomal targeting signal sequence. The presence of this enzyme in peroxisomes suggests roles in the regeneration of NADPH for intraperoxisomal reductions, such as the conversion of 2, 4-dienoyl-CoAs to 3-enoyl-CoAs, as well as in peroxisomal reactions that consume 2-oxoglutarate, namely the alpha-hydroxylation of phytanic acid. The cytoplasmic enzyme serves a significant role in cytoplasmic NADPH production. Alternatively spliced transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Sep 2013]

IDH1 Gene-Disease associations (from GenCC):

Maffucci syndrome
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

IDH1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.016155273).

BP6

Variant 2-208251458-A-C is Benign according to our data. Variant chr2-208251458-A-C is described in ClinVar as Likely_benign. ClinVar VariationId is 134515.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High AC in GnomAd4 at 64 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005896.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
IDH1	NM_005896.4	MANE Select	c.94T>G	p.Phe32Val	missense	Exon 3 of 10	NP_005887.2
IDH1	NM_001282386.1		c.94T>G	p.Phe32Val	missense	Exon 3 of 10	NP_001269315.1	O75874
IDH1	NM_001282387.1		c.94T>G	p.Phe32Val	missense	Exon 3 of 10	NP_001269316.1	A0A024R3Y6

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
IDH1	ENST00000345146.7	TSL:1 MANE Select	c.94T>G	p.Phe32Val	missense	Exon 3 of 10	ENSP00000260985.2	O75874
IDH1	ENST00000415913.5	TSL:1	c.94T>G	p.Phe32Val	missense	Exon 3 of 10	ENSP00000390265.1	O75874
IDH1	ENST00000446179.5	TSL:1	c.94T>G	p.Phe32Val	missense	Exon 3 of 10	ENSP00000410513.1	O75874

Frequencies

GnomAD3 genomes

AF:

0.000421

AC:

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000524

Gnomad ASJ

AF:

0.00576

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000549

AC:

138

AN:

251386

AF XY:

0.000618

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000521

Gnomad ASJ exome

AF:

0.00476

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000581

Gnomad OTH exome

AF:

0.000815

GnomAD4 exome

AF:

0.000546

AC:

798

AN:

1461640

Hom.:

Cov.:

AF XY:

0.000534

AC XY:

388

AN XY:

727150

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33478

American (AMR)

AF:

0.000693

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00455

AC:

119

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53414

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5658

European-Non Finnish (NFE)

AF:

0.000531

AC:

590

AN:

1111902

Other (OTH)

AF:

0.000944

AC:

AN:

60378

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.457

Heterozygous variant carriers

120

160

200

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

104

130

<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:

0.000420

AC:

AN:

152314

Hom.:

Cov.:

AF XY:

0.000416

AC XY:

AN XY:

74476

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

41576

American (AMR)

AF:

0.000523

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00576

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.000207

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000441

AC:

AN:

68022

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.505

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000234

Hom.:

Bravo

AF:

0.000457

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.000778

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000581

AC:

ExAC

AF:

0.000519

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000818

EpiControl

AF:

0.000889

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

IDH1-related disorder (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.20

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.56

Eigen

Uncertain

0.21

Eigen_PC

Uncertain

0.26

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.94

M_CAP

Benign

0.055

MetaRNN

Benign

0.016

MetaSVM

Benign

-0.43

MutationAssessor

Uncertain

2.1

PhyloP100

5.4

PrimateAI

Uncertain

0.60

PROVEAN

Benign

-2.0

REVEL

Uncertain

0.31

Sift

Benign

0.037

Sift4G

Uncertain

0.050

Polyphen

0.30

Vest4

0.53

MVP

0.89

MPC

0.24

ClinPred

0.072

GERP RS

4.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.46

gMVP

0.87

Mutation Taster

=99/1

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over