Variant 1-241568552-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_003679.5(KMO):c.862G>A(p.Val288Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,488 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

KMO
NM_003679.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.56

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 Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.09422812).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KMO	NM_003679.5 linkuse as main transcript	c.862G>A	p.Val288Ile	missense_variant	10/15	ENST00000366559.9
KMO	NM_001410944.1 linkuse as main transcript	c.862G>A	p.Val288Ile	missense_variant	10/15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KMO	ENST00000366559.9 linkuse as main transcript	c.862G>A	p.Val288Ile	missense_variant	10/15	1	NM_003679.5	P2	O15229-1
KMO	ENST00000366558.7 linkuse as main transcript	c.862G>A	p.Val288Ile	missense_variant	10/15	1		A2	O15229-2
KMO	ENST00000366557.8 linkuse as main transcript	c.862G>A	p.Val288Ile	missense_variant	10/14	5			O15229-3
KMO	ENST00000431245.2 linkuse as main transcript	n.451G>A		non_coding_transcript_exon_variant	4/5	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000796

AC:

AN:

251110

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135710

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461488

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727042

show subpopulations

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:

0.00000720

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

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 08, 2023

The c.862G>A (p.V288I) alteration is located in exon 10 (coding exon 10) of the KMO gene. This alteration results from a G to A substitution at nucleotide position 862, causing the valine (V) at amino acid position 288 to be replaced by an isoleucine (I). 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

0.067

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.59

CADD

Benign

DANN

Benign

0.38

DEOGEN2

Benign

0.0091

.;T;.

Eigen

Benign

-0.74

Eigen_PC

Benign

-0.65

FATHMM_MKL

Benign

0.66

LIST_S2

Benign

0.85

D;T;D

M_CAP

Benign

0.0048

MetaRNN

Benign

0.094

T;T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.82

L;L;L

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.32

PROVEAN

Benign

-0.17

N;N;N

REVEL

Benign

0.088

Sift

Benign

1.0

T;T;T

Sift4G

Benign

0.69

T;T;T

Polyphen

0.082

B;B;.

Vest4

0.096

MutPred

0.64

Gain of sheet (P = 0.039);Gain of sheet (P = 0.039);Gain of sheet (P = 0.039);

MVP

0.35

MPC

0.34

ClinPred

0.087

GERP RS

-0.54

Varity_R

0.098

gMVP

0.54

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