19-10489686-C-T

Position:

chr19-10489686-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2

The NM_203500.2(KEAP1):c.1493G>A(p.Arg498Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000991 in 1,613,768 control chromosomes in the GnomAD database, including 1 homozygotes. 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: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000010 ( 1 hom. )

Consequence

KEAP1
NM_203500.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0490

Variant links:

Genes affected

KEAP1 (HGNC:23177): (kelch like ECH associated protein 1) This gene encodes a protein containing KELCH-1 like domains, as well as a BTB/POZ domain. Kelch-like ECH-associated protein 1 interacts with NF-E2-related factor 2 in a redox-sensitive manner and the dissociation of the proteins in the cytoplasm is followed by transportation of NF-E2-related factor 2 to the nucleus. This interaction results in the expression of the catalytic subunit of gamma-glutamylcysteine synthetase. Two alternatively spliced transcript variants encoding the same isoform have been found for this gene. [provided by RefSeq, Jul 2008]

KEAP1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), KEAP1. . Gene score misZ 3.7962 (greater than the threshold 3.09). Trascript score misZ 4.2882 (greater than threshold 3.09). GenCC has associacion of gene with goiter, multinodular 1, with or without Sertoli-Leydig cell tumors.

BP4

Computational evidence support a benign effect (MetaRNN=0.13144806).

BS2

High AC in GnomAdExome4 at 15 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KEAP1	NM_203500.2 linkuse as main transcript	c.1493G>A	p.Arg498Gln	missense_variant	4/6	ENST00000171111.10	NP_987096.1	Q14145A0A024R7C0
KEAP1	NM_012289.4 linkuse as main transcript	c.1493G>A	p.Arg498Gln	missense_variant	4/6		NP_036421.2	Q14145A0A024R7C0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
KEAP1	ENST00000171111.10 linkuse as main transcript	c.1493G>A	p.Arg498Gln	missense_variant	4/6	1	NM_203500.2	ENSP00000171111.4	Q14145
KEAP1	ENST00000393623.6 linkuse as main transcript	c.1493G>A	p.Arg498Gln	missense_variant	4/6	1		ENSP00000377245.1	Q14145
KEAP1	ENST00000592478.5 linkuse as main transcript	c.311G>A	p.Arg104Gln	missense_variant	2/3	1		ENSP00000468014.1	K7EQX2
KEAP1	ENST00000590593.1 linkuse as main transcript	n.303-318G>A		intron_variant		3		ENSP00000467601.1	K7EPZ3

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151974

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000795

AC:

AN:

251486

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135918

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000103

AC:

AN:

1461794

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

727196

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000630

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.00000658

AC:

AN:

151974

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74204

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

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

Dec 28, 2023

The c.1493G>A (p.R498Q) alteration is located in exon 4 (coding exon 3) of the KEAP1 gene. This alteration results from a G to A substitution at nucleotide position 1493, causing the arginine (R) at amino acid position 498 to be replaced by a glutamine (Q). 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

0.070

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.28

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.22

T;T

Eigen

Benign

-0.34

Eigen_PC

Benign

-0.18

FATHMM_MKL

Benign

0.18

LIST_S2

Benign

0.84

.;T

M_CAP

Benign

0.010

MetaRNN

Benign

0.13

T;T

MetaSVM

Benign

-0.76

MutationAssessor

Benign

1.0

L;L

PrimateAI

Benign

0.42

PROVEAN

Benign

0.16

N;N

REVEL

Benign

0.23

Sift

Benign

0.62

T;T

Sift4G

Benign

0.64

T;T

Polyphen

0.11

B;B

Vest4

0.40

MutPred

0.51

Loss of MoRF binding (P = 0.0404);Loss of MoRF binding (P = 0.0404);

MVP

0.67

MPC

1.1

ClinPred

0.48

GERP RS

4.8

Varity_R

0.16

gMVP

0.24

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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