chr13-41131604-T-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_152903.5(KBTBD6):​c.908A>T​(p.Tyr303Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,613,398 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

KBTBD6
NM_152903.5 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.14
Variant links:
Genes affected
KBTBD6 (HGNC:25340): (kelch repeat and BTB domain containing 6) Involved in proteasome-mediated ubiquitin-dependent protein catabolic process; protein K48-linked ubiquitination; and regulation of Rac protein signal transduction. Located in cytoplasm and nucleus. Part of Cul3-RING ubiquitin ligase complex. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.04713255).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KBTBD6NM_152903.5 linkuse as main transcriptc.908A>T p.Tyr303Phe missense_variant 1/1 ENST00000379485.2 NP_690867.3 Q86V97

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KBTBD6ENST00000379485.2 linkuse as main transcriptc.908A>T p.Tyr303Phe missense_variant 1/16 NM_152903.5 ENSP00000368799.1 Q86V97

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152154
Hom.:
0
Cov.:
33
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
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461244
Hom.:
0
Cov.:
36
AF XY:
0.00
AC XY:
0
AN XY:
726882
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152154
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74340
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:
0.00000756

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 GeneticsMar 30, 2024The c.908A>T (p.Y303F) alteration is located in exon 1 (coding exon 1) of the KBTBD6 gene. This alteration results from a A to T substitution at nucleotide position 908, causing the tyrosine (Y) at amino acid position 303 to be replaced by a phenylalanine (F). 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
0.11
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
10
DANN
Benign
0.79
DEOGEN2
Benign
0.012
T
Eigen
Benign
-0.65
Eigen_PC
Benign
-0.57
FATHMM_MKL
Benign
0.46
N
LIST_S2
Benign
0.80
T
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.047
T
MetaSVM
Benign
-0.95
T
MutationAssessor
Benign
0.83
L
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-0.25
N
REVEL
Benign
0.060
Sift
Benign
0.54
T
Sift4G
Benign
0.56
T
Polyphen
0.0010
B
Vest4
0.10
MutPred
0.46
Loss of catalytic residue at Y303 (P = 0.1687);
MVP
0.32
MPC
0.89
ClinPred
0.044
T
GERP RS
2.5
Varity_R
0.053
gMVP
0.31

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: rs749844387; hg19: chr13-41705740; API