Variant 1-241532484-A-G details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_003679.5(KMO):c.40A>G(p.Ile14Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000498 in 1,609,802 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00034 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00051 ( 0 hom. )

Consequence

KMO
NM_003679.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.57

Variant links:

Genes affected

KMO (HGNC:6381): (kynurenine 3-monooxygenase) This gene encodes a mitochondrion outer membrane protein that catalyzes the hydroxylation of L-tryptophan metabolite, L-kynurenine, to form L-3-hydroxykynurenine. Studies in yeast identified this gene as a therapeutic target for Huntington disease. [provided by RefSeq, Oct 2011]

KMO links:

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=0.054888815).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KMO	NM_003679.5 linkuse as main transcript	c.40A>G	p.Ile14Val	missense_variant	1/15	ENST00000366559.9
KMO	NM_001410944.1 linkuse as main transcript	c.40A>G	p.Ile14Val	missense_variant	1/15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KMO	ENST00000366559.9 linkuse as main transcript	c.40A>G	p.Ile14Val	missense_variant	1/15	1	NM_003679.5	P2	O15229-1

Frequencies

GnomAD3 genomes

AF:

0.000342

AC:

AN:

152190

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

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:

0.000588

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000246

AC:

AN:

247558

Hom.:

AF XY:

0.000261

AC XY:

AN XY:

134032

show subpopulations

Gnomad AFR exome

AF:

0.0000624

Gnomad AMR exome

AF:

0.000305

Gnomad ASJ exome

AF:

0.0000996

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000425

Gnomad OTH exome

AF:

0.000167

GnomAD4 exome

AF:

0.000514

AC:

749

AN:

1457494

Hom.:

Cov.:

AF XY:

0.000506

AC XY:

367

AN XY:

725218

show subpopulations

Gnomad4 AFR exome

AF:

0.000120

Gnomad4 AMR exome

AF:

0.000488

Gnomad4 ASJ exome

AF:

0.0000384

Gnomad4 EAS exome

AF:

0.0000253

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000590

Gnomad4 OTH exome

AF:

0.00111

GnomAD4 genome

AF:

0.000341

AC:

AN:

152308

Hom.:

Cov.:

AF XY:

0.000282

AC XY:

AN XY:

74490

show subpopulations

Gnomad4 AFR

AF:

0.000144

Gnomad4 AMR

AF:

0.000327

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000588

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000427

Hom.:

Bravo

AF:

0.000359

TwinsUK

AF:

0.00108

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000581

AC:

ExAC

AF:

0.000214

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000492

EpiControl

AF:

0.000536

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

Sep 01, 2021

The c.40A>G (p.I14V) alteration is located in exon 1 (coding exon 1) of the KMO gene. This alteration results from a A to G substitution at nucleotide position 40, causing the isoleucine (I) at amino acid position 14 to be replaced by a valine (V). 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

0.071

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.51

Cadd

Benign

Dann

Benign

0.86

Eigen

Benign

-0.60

Eigen_PC

Benign

-0.37

FATHMM_MKL

Benign

0.63

LIST_S2

Benign

0.78

T;T;T

M_CAP

Benign

0.0029

MetaRNN

Benign

0.055

T;T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

-0.41

N;N;N

MutationTaster

Benign

0.92

N;N;N

PrimateAI

Uncertain

0.51

PROVEAN

Benign

0.46

N;N;N

REVEL

Benign

0.061

Sift

Benign

0.82

T;T;T

Sift4G

Benign

1.0

T;T;T

Polyphen

0.0060

B;B;.

Vest4

0.32

MVP

0.17

MPC

0.30

ClinPred

0.027

GERP RS

2.9

Varity_R

0.15

gMVP

0.23

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.

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