chr9-128837747-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_004059.5(KYAT1):​c.505G>A​(p.Gly169Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000242 in 1,614,088 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

KYAT1
NM_004059.5 missense

Scores

19

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.46
Variant links:
Genes affected
KYAT1 (HGNC:1564): (kynurenine aminotransferase 1) This gene encodes a cytosolic enzyme that is responsible for the metabolism of cysteine conjugates of certain halogenated alkenes and alkanes. This metabolism can form reactive metabolites leading to nephrotoxicity and neurotoxicity. Increased levels of this enzyme have been linked to schizophrenia. Multiple transcript variants that encode different isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.025500387).
BP6
Variant 9-128837747-C-T is Benign according to our data. Variant chr9-128837747-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 2225521.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KYAT1NM_004059.5 linkuse as main transcriptc.505G>A p.Gly169Ser missense_variant 6/13 ENST00000302586.8
KYAT1-SPOUT1NR_182311.1 linkuse as main transcriptn.565G>A non_coding_transcript_exon_variant 6/25

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KYAT1ENST00000302586.8 linkuse as main transcriptc.505G>A p.Gly169Ser missense_variant 6/131 NM_004059.5 P1Q16773-1

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
152124
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.000576
Gnomad EAS
AF:
0.000578
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000441
AC:
11
AN:
249404
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
135330
show subpopulations
Gnomad AFR exome
AF:
0.000129
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.000199
Gnomad EAS exome
AF:
0.0000556
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000442
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000157
AC:
23
AN:
1461846
Hom.:
0
Cov.:
31
AF XY:
0.0000138
AC XY:
10
AN XY:
727232
show subpopulations
Gnomad4 AFR exome
AF:
0.000119
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.000115
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000989
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.000105
AC:
16
AN:
152242
Hom.:
0
Cov.:
32
AF XY:
0.0000806
AC XY:
6
AN XY:
74438
show subpopulations
Gnomad4 AFR
AF:
0.000120
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.000576
Gnomad4 EAS
AF:
0.000579
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.0000540
Hom.:
0
Bravo
AF:
0.0000945
ExAC
AF:
0.0000744
AC:
9

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsAug 09, 2021This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.064
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
15
DANN
Benign
0.34
DEOGEN2
Benign
0.25
.;T;.;T;T
Eigen
Benign
-1.1
Eigen_PC
Benign
-0.80
FATHMM_MKL
Benign
0.24
N
LIST_S2
Benign
0.41
T;T;T;T;T
M_CAP
Benign
0.029
D
MetaRNN
Benign
0.026
T;T;T;T;T
MetaSVM
Benign
-0.78
T
MutationAssessor
Benign
-2.1
.;N;.;.;.
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.41
T
PROVEAN
Benign
2.9
N;N;N;N;N
REVEL
Benign
0.15
Sift
Benign
1.0
T;T;T;T;T
Sift4G
Benign
1.0
T;T;T;T;T
Polyphen
0.0
B;B;B;B;.
Vest4
0.25
MutPred
0.38
Gain of disorder (P = 0.0492);.;.;.;.;
MVP
0.29
MPC
0.15
ClinPred
0.043
T
GERP RS
4.2
Varity_R
0.053
gMVP
0.36

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.

Other links and lift over

dbSNP: rs572629163; hg19: chr9-131600026; COSMIC: COSV56912492; COSMIC: COSV56912492; API