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GeneBe

rs12545877

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_002164.6(IDO1):​c.314G>A​(p.Arg105Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000684 in 146,258 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000068 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

IDO1
NM_002164.6 missense

Scores

17

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.402
Variant links:
Genes affected
IDO1 (HGNC:6059): (indoleamine 2,3-dioxygenase 1) This gene encodes indoleamine 2,3-dioxygenase (IDO) - a heme enzyme that catalyzes the first and rate-limiting step in tryptophan catabolism to N-formyl-kynurenine. This enzyme acts on multiple tryptophan substrates including D-tryptophan, L-tryptophan, 5-hydroxy-tryptophan, tryptamine, and serotonin. This enzyme is thought to play a role in a variety of pathophysiological processes such as antimicrobial and antitumor defense, neuropathology, immunoregulation, and antioxidant activity. Through its expression in dendritic cells, monocytes, and macrophages this enzyme modulates T-cell behavior by its peri-cellular catabolization of the essential amino acid tryptophan.[provided by RefSeq, Feb 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.04071182).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IDO1NM_002164.6 linkuse as main transcriptc.314G>A p.Arg105Lys missense_variant 4/10 ENST00000518237.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IDO1ENST00000518237.6 linkuse as main transcriptc.314G>A p.Arg105Lys missense_variant 4/101 NM_002164.6 P1
ENST00000517623.1 linkuse as main transcriptn.256-14804C>T intron_variant, non_coding_transcript_variant 4
ENST00000522970.1 linkuse as main transcriptn.257-401C>T intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.00000684
AC:
1
AN:
146212
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000255
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
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:
0.00000402
AC:
1
AN:
248930
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135062
show subpopulations
Gnomad AFR exome
AF:
0.0000647
Gnomad AMR exome
AF:
0.00
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
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1445904
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
720398
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000684
AC:
1
AN:
146258
Hom.:
0
Cov.:
32
AF XY:
0.0000141
AC XY:
1
AN XY:
70970
show subpopulations
Gnomad4 AFR
AF:
0.0000255
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00000828
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.081
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.70
CADD
Benign
11
DANN
Benign
0.89
Eigen
Benign
-0.99
Eigen_PC
Benign
-0.93
FATHMM_MKL
Benign
0.036
N
LIST_S2
Benign
0.54
T;.;T
M_CAP
Benign
0.0034
T
MetaRNN
Benign
0.041
T;T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.21
T
PROVEAN
Benign
-1.4
N;N;N
REVEL
Benign
0.025
Sift
Benign
0.18
T;T;T
Sift4G
Benign
0.58
T;T;T
Polyphen
0.0
.;B;B
Vest4
0.036, 0.035
MutPred
0.43
Gain of methylation at R105 (P = 0.0171);Gain of methylation at R105 (P = 0.0171);Gain of methylation at R105 (P = 0.0171);
MVP
0.11
MPC
0.036
ClinPred
0.022
T
GERP RS
0.94
Varity_R
0.42
gMVP
0.16

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.19
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: rs12545877; hg19: chr8-39776344; COSMIC: COSV99503242; COSMIC: COSV99503242; API