rs35099072

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_002164.6(IDO1):​c.230G>A​(p.Arg77His) variant causes a missense change. The variant allele was found at a frequency of 0.00053 in 1,613,896 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0027 ( 5 hom., cov: 32)
Exomes 𝑓: 0.00030 ( 2 hom. )

Consequence

IDO1
NM_002164.6 missense

Scores

3
7
8

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.98
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 Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.01365599).
BS2
High Homozygotes in GnomAd4 at 5 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IDO1NM_002164.6 linkuse as main transcriptc.230G>A p.Arg77His missense_variant 3/10 ENST00000518237.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IDO1ENST00000518237.6 linkuse as main transcriptc.230G>A p.Arg77His missense_variant 3/101 NM_002164.6 P1
ENST00000522970.1 linkuse as main transcriptn.547C>T non_coding_transcript_exon_variant 2/23
ENST00000517623.1 linkuse as main transcriptn.256-14113C>T intron_variant, non_coding_transcript_variant 4

Frequencies

GnomAD3 genomes
AF:
0.00273
AC:
416
AN:
152132
Hom.:
5
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00956
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000851
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:
0.0000735
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.000690
AC:
172
AN:
249202
Hom.:
1
AF XY:
0.000422
AC XY:
57
AN XY:
135198
show subpopulations
Gnomad AFR exome
AF:
0.0101
Gnomad AMR exome
AF:
0.000290
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:
0.0000443
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000300
AC:
439
AN:
1461646
Hom.:
2
Cov.:
32
AF XY:
0.000242
AC XY:
176
AN XY:
727106
show subpopulations
Gnomad4 AFR exome
AF:
0.0108
Gnomad4 AMR exome
AF:
0.000470
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:
0.0000198
Gnomad4 OTH exome
AF:
0.000547
GnomAD4 genome
AF:
0.00273
AC:
416
AN:
152250
Hom.:
5
Cov.:
32
AF XY:
0.00261
AC XY:
194
AN XY:
74430
show subpopulations
Gnomad4 AFR
AF:
0.00953
Gnomad4 AMR
AF:
0.000850
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.000946
Alfa
AF:
0.000586
Hom.:
2
Bravo
AF:
0.00308
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.00872
AC:
35
ESP6500EA
AF:
0.000239
AC:
2
ExAC
AF:
0.000860
AC:
104
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Uncertain
-0.080
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.026
T;.;T;T
Eigen
Uncertain
0.64
Eigen_PC
Uncertain
0.57
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Benign
0.68
T;T;.;D
MetaRNN
Benign
0.014
T;T;T;T
MetaSVM
Benign
-0.32
T
MutationAssessor
Pathogenic
3.0
.;.;M;M
MutationTaster
Benign
1.0
D;D
PrimateAI
Benign
0.36
T
PROVEAN
Uncertain
-2.9
D;D;N;N
REVEL
Uncertain
0.41
Sift
Uncertain
0.029
D;T;T;T
Sift4G
Pathogenic
0.0
D;D;T;T
Polyphen
1.0
.;.;D;D
Vest4
0.35
MVP
0.72
MPC
0.29
ClinPred
0.063
T
GERP RS
5.7
Varity_R
0.27
gMVP
0.45

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs35099072; hg19: chr8-39775653; COSMIC: COSV99503308; COSMIC: COSV99503308; API