rs199469645

Positions:

chr5-137625818-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PP2PP3_Strong

The NM_017415.3(KLHL3):c.1670A>G(p.Tyr557Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,614,046 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

KLHL3
NM_017415.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter P:2U:1

Conservation

PhyloP100: 8.02

Variant links:

Genes affected

KLHL3 (HGNC:6354): (kelch like family member 3) This gene is ubiquitously expressed and encodes a full-length protein which has an N-terminal BTB domain followed by a BACK domain and six kelch-like repeats in the C-terminus. These kelch-like repeats promote substrate ubiquitination of bound proteins via interaction of the BTB domain with the CUL3 (cullin 3) component of a cullin-RING E3 ubiquitin ligase (CRL) complex. Muatations in this gene cause pseudohypoaldosteronism type IID (PHA2D); a rare Mendelian syndrome featuring hypertension, hyperkalaemia and metabolic acidosis. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Mar 2012]

KLHL3 links:

KLHL3 (HGNC:):

KLHL3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), KLHL3. . Gene score misZ 2.9931 (greater than the threshold 3.09). Trascript score misZ 3.5661 (greater than threshold 3.09). GenCC has associacion of gene with pseudohypoaldosteronism type 2D.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.946

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KLHL3	NM_017415.3 linkuse as main transcript	c.1670A>G	p.Tyr557Cys	missense_variant	14/15	ENST00000309755.9	NP_059111.2	Q9UH77-1
KLHL3	NM_001257194.1 linkuse as main transcript	c.1574A>G	p.Tyr525Cys	missense_variant	14/15		NP_001244123.1	Q9UH77-2
KLHL3	NM_001257195.2 linkuse as main transcript	c.1424A>G	p.Tyr475Cys	missense_variant	12/13		NP_001244124.1	Q9UH77-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KLHL3	ENST00000309755.9 linkuse as main transcript	c.1670A>G	p.Tyr557Cys	missense_variant	14/15	1	NM_017415.3	ENSP00000312397.4		Q9UH77-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152152

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000116

AC:

AN:

1461894

Hom.:

Cov.:

AF XY:

0.0000179

AC XY:

AN XY:

727248

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:

0.0000153

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152152

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74324

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:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:2Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Pseudohypoaldosteronism type 2D

Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Jan 22, 2012

- -

Pseudohypoaldosteronism type 2A

Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

Richard Lifton Laboratory, Yale University School of Medicine

- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 15, 2023

This sequence change replaces tyrosine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 557 of the KLHL3 protein (p.Tyr557Cys). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with pseudohypoaldosteronism type II (PMID: 22266938). ClinVar contains an entry for this variant (Variation ID: 30521). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt KLHL3 protein function with a positive predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.95

BayesDel_addAF

Pathogenic

0.49

BayesDel_noAF

Pathogenic

0.47

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.82

.;.;D

Eigen

Pathogenic

0.90

Eigen_PC

Pathogenic

0.78

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.99

D;D;D

M_CAP

Pathogenic

0.48

MetaRNN

Pathogenic

0.95

D;D;D

MetaSVM

Pathogenic

1.0

MutationAssessor

Pathogenic

4.9

.;.;H

PrimateAI

Pathogenic

0.82

PROVEAN

Pathogenic

-7.4

D;D;D

REVEL

Pathogenic

0.96

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0

.;.;D

Vest4

0.99

MutPred

0.79

.;.;Loss of phosphorylation at Y557 (P = 0.048);

MVP

0.94

MPC

1.9

ClinPred

1.0

GERP RS

4.6

Varity_R

0.97

gMVP

0.88

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