Variant 8-39963689-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_194294.5(IDO2):c.181G>C(p.Ala61Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000413 in 1,452,438 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

IDO2
NM_194294.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.914

Variant links:

Genes affected

IDO2 (HGNC:27269): (indoleamine 2,3-dioxygenase 2) Along with the enzymes encoded by the INDO (MIM 147435) and TDO2 (MIM 191070) genes, the enzyme encoded by the INDOL1 gene metabolizes tryptophan in the kynurenine pathway (Ball et al., 2007 [PubMed 17499941]).[supplied by OMIM, Feb 2011]

IDO2 links:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.27730975).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IDO2	NM_194294.5 linkuse as main transcript	c.181G>C	p.Ala61Pro	missense_variant	3/11	ENST00000502986.4
IDO2	NM_001395206.1 linkuse as main transcript	c.181G>C	p.Ala61Pro	missense_variant	2/10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
IDO2	ENST00000502986.4 linkuse as main transcript	c.181G>C	p.Ala61Pro	missense_variant	3/11	5	NM_194294.5	P1
	ENST00000517623.1 linkuse as main transcript	n.255+23689C>G		intron_variant, non_coding_transcript_variant		4
IDO2	ENST00000343295.8 linkuse as main transcript	n.803G>C		non_coding_transcript_exon_variant	3/11	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000244

AC:

AN:

246368

Hom.:

AF XY:

0.00000749

AC XY:

AN XY:

133540

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000176

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000413

AC:

AN:

1452438

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

722884

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000135

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000936

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.0000331

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 12, 2021

The c.220G>C (p.A74P) alteration is located in exon 3 (coding exon 3) of the IDO2 gene. This alteration results from a G to C substitution at nucleotide position 220, causing the alanine (A) at amino acid position 74 to be replaced by a proline (P). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.36

Cadd

Benign

Dann

Uncertain

0.99

DEOGEN2

Benign

0.016

T;.

Eigen

Benign

0.069

Eigen_PC

Benign

0.097

FATHMM_MKL

Benign

0.46

LIST_S2

Benign

0.61

T;T

M_CAP

Benign

0.0067

MetaRNN

Benign

0.28

T;T

MetaSVM

Benign

-0.88

MutationTaster

Benign

0.76

D;D

PrimateAI

Benign

0.32

PROVEAN

Benign

-2.3

N;N

REVEL

Benign

0.13

Sift

Benign

0.22

T;T

Sift4G

Benign

0.23

T;T

Vest4

0.47

MutPred

0.45

Loss of helix (P = 0.0376);.;

MVP

0.61

MPC

0.028

ClinPred

0.79

GERP RS

5.7

Varity_R

0.58

gMVP

0.47

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over