chrX-117919523-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001168302.2(KLHL13):​c.520G>T​(p.Gly174Trp) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000369 in 1,082,714 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 23)
Exomes 𝑓: 0.0000037 ( 0 hom. 1 hem. )

Consequence

KLHL13
NM_001168302.2 missense, splice_region

Scores

4
9
4
Splicing: ADA: 0.8609
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.91
Variant links:
Genes affected
KLHL13 (HGNC:22931): (kelch like family member 13) This gene encodes a BTB and kelch domain containing protein and belongs to the kelch repeat domain containing superfamily of proteins. The encoded protein functions as an adaptor protein that complexes with Cullin 3 and other proteins to form the Cullin 3-based E3 ubiquitin-protein ligase complex. This complex is necessary for proper chromosome segregation and completion of cytokinesis. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Mar 2010]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KLHL13NM_001168302.2 linkuse as main transcriptc.520G>T p.Gly174Trp missense_variant, splice_region_variant 5/8 ENST00000540167.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KLHL13ENST00000540167.6 linkuse as main transcriptc.520G>T p.Gly174Trp missense_variant, splice_region_variant 5/82 NM_001168302.2 Q9P2N7-3

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD4 exome
AF:
0.00000369
AC:
4
AN:
1082714
Hom.:
0
Cov.:
28
AF XY:
0.00000286
AC XY:
1
AN XY:
349908
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:
0.00000362
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
23

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 submitterclinical testingAmbry GeneticsMay 09, 2023The c.577G>T (p.G193W) alteration is located in exon 5 (coding exon 5) of the KLHL13 gene. This alteration results from a G to T substitution at nucleotide position 577, causing the glycine (G) at amino acid position 193 to be replaced by a tryptophan (W). 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
Pathogenic
0.90
BayesDel_addAF
Pathogenic
0.20
D
BayesDel_noAF
Uncertain
0.050
CADD
Pathogenic
29
DANN
Uncertain
0.99
DEOGEN2
Benign
0.061
.;.;.;T;.;.;.;.
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.96
.;.;D;D;D;.;D;D
M_CAP
Uncertain
0.22
D
MetaRNN
Uncertain
0.54
D;D;D;D;D;D;D;D
MetaSVM
Uncertain
-0.26
T
MutationAssessor
Benign
-0.60
.;.;.;N;.;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D;D;D;D
PrimateAI
Pathogenic
0.88
D
PROVEAN
Benign
-1.6
N;N;N;N;N;N;N;.
REVEL
Uncertain
0.53
Sift
Uncertain
0.0080
D;D;D;D;D;D;D;.
Sift4G
Uncertain
0.0080
D;D;D;D;D;D;D;.
Polyphen
0.94, 0.94, 0.98
.;.;.;P;.;P;P;D
Vest4
0.65
MutPred
0.53
.;.;.;Loss of glycosylation at S189 (P = 0.0274);.;.;.;.;
MVP
0.86
ClinPred
0.92
D
GERP RS
4.9
Varity_R
0.40
gMVP
0.80

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.86
dbscSNV1_RF
Benign
0.65
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

No publications associated with this variant yet.

Other links and lift over

hg19: chrX-117053486; API