9-128847452-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001287390.3(KYAT1):​c.77C>T​(p.Thr26Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00885 in 1,535,734 control chromosomes in the GnomAD database, including 151 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/14 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0085 ( 24 hom., cov: 32)
Exomes 𝑓: 0.0089 ( 127 hom. )

Consequence

KYAT1
NM_001287390.3 missense

Scores

2
12

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.720
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0014366806).
BP6
Variant 9-128847452-G-A is Benign according to our data. Variant chr9-128847452-G-A is described in ClinVar as [Benign]. Clinvar id is 782286.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.00847 (1290/152316) while in subpopulation AMR AF= 0.0385 (589/15304). AF 95% confidence interval is 0.0359. There are 24 homozygotes in gnomad4. There are 649 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 24 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KYAT1NM_004059.5 linkuse as main transcriptc.-6-2041C>T intron_variant ENST00000302586.8 NP_004050.3 Q16773-1A8K563

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ENSG00000286112ENST00000651925.1 linkuse as main transcriptc.77C>T p.Thr26Ile missense_variant 2/29 ENSP00000498386.1 A0A494C066
KYAT1ENST00000302586.8 linkuse as main transcriptc.-6-2041C>T intron_variant 1 NM_004059.5 ENSP00000302227.3 Q16773-1

Frequencies

GnomAD3 genomes
AF:
0.00838
AC:
1276
AN:
152198
Hom.:
22
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00220
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0376
Gnomad ASJ
AF:
0.000577
Gnomad EAS
AF:
0.000578
Gnomad SAS
AF:
0.00518
Gnomad FIN
AF:
0.00226
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.00763
Gnomad OTH
AF:
0.0167
GnomAD3 exomes
AF:
0.0133
AC:
1791
AN:
134356
Hom.:
43
AF XY:
0.0116
AC XY:
848
AN XY:
73166
show subpopulations
Gnomad AFR exome
AF:
0.00233
Gnomad AMR exome
AF:
0.0473
Gnomad ASJ exome
AF:
0.000604
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00561
Gnomad FIN exome
AF:
0.00186
Gnomad NFE exome
AF:
0.00808
Gnomad OTH exome
AF:
0.0131
GnomAD4 exome
AF:
0.00889
AC:
12295
AN:
1383418
Hom.:
127
Cov.:
30
AF XY:
0.00860
AC XY:
5870
AN XY:
682676
show subpopulations
Gnomad4 AFR exome
AF:
0.00142
Gnomad4 AMR exome
AF:
0.0516
Gnomad4 ASJ exome
AF:
0.000556
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00550
Gnomad4 FIN exome
AF:
0.00233
Gnomad4 NFE exome
AF:
0.00870
Gnomad4 OTH exome
AF:
0.00832
GnomAD4 genome
AF:
0.00847
AC:
1290
AN:
152316
Hom.:
24
Cov.:
32
AF XY:
0.00871
AC XY:
649
AN XY:
74492
show subpopulations
Gnomad4 AFR
AF:
0.00219
Gnomad4 AMR
AF:
0.0385
Gnomad4 ASJ
AF:
0.000577
Gnomad4 EAS
AF:
0.000579
Gnomad4 SAS
AF:
0.00518
Gnomad4 FIN
AF:
0.00226
Gnomad4 NFE
AF:
0.00763
Gnomad4 OTH
AF:
0.0166
Alfa
AF:
0.00255
Hom.:
0
Bravo
AF:
0.0112
TwinsUK
AF:
0.00674
AC:
25
ALSPAC
AF:
0.00727
AC:
28
ExAC
AF:
0.00481
AC:
93
Asia WGS
AF:
0.00375
AC:
13
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMar 06, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.48
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
4.6
DANN
Benign
0.90
Eigen
Benign
-0.89
Eigen_PC
Benign
-0.97
FATHMM_MKL
Benign
0.037
N
LIST_S2
Benign
0.42
T
MetaRNN
Benign
0.0014
T
MetaSVM
Benign
-0.85
T
PROVEAN
Benign
-0.32
N
REVEL
Benign
0.11
Sift
Uncertain
0.0050
D
Sift4G
Uncertain
0.0070
D
Polyphen
0.047
B
Vest4
0.23
ClinPred
0.0068
T
GERP RS
0.086
gMVP
0.13

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: rs138949483; hg19: chr9-131609731; API