Genetic Variant KBTBD2:p.Arg560Gln (chr7-32869538-C-T) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_015483.3(KBTBD2):c.1679G>A(p.Arg560Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000892 in 1,614,032 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R560W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000088 ( 0 hom. )

Consequence

KBTBD2
NM_015483.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.43

Publications

2 publications found

Variant links:

Genes affected

KBTBD2 (HGNC:21751): (kelch repeat and BTB domain containing 2) Predicted to act upstream of or within with a positive effect on several processes, including glucose metabolic process; phosphatidylinositol 3-kinase signaling; and response to insulin. [provided by Alliance of Genome Resources, Apr 2022]

KBTBD2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.072544485).

BS2

High AC in GnomAd4 at 16 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015483.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KBTBD2	NM_015483.3	MANE Select	c.1679G>A	p.Arg560Gln	missense	Exon 4 of 4	NP_056298.2	A0A024RA38

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KBTBD2	ENST00000304056.9	TSL:1 MANE Select	c.1679G>A	p.Arg560Gln	missense	Exon 4 of 4	ENSP00000302586.4	Q8IY47
KBTBD2	ENST00000896919.1		c.1679G>A	p.Arg560Gln	missense	Exon 5 of 5	ENSP00000566978.1
KBTBD2	ENST00000896920.1		c.1679G>A	p.Arg560Gln	missense	Exon 5 of 5	ENSP00000566979.1

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000589

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000108

AC:

AN:

251136

AF XY:

0.000118

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000434

Gnomad ASJ exome

AF:

0.0000993

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000705

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.0000876

AC:

128

AN:

1461862

Hom.:

Cov.:

AF XY:

0.0000908

AC XY:

AN XY:

727230

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33480

American (AMR)

AF:

0.000380

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000935

AC:

104

AN:

1111988

Other (OTH)

AF:

0.0000828

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000105

AC:

AN:

152170

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74330

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41446

American (AMR)

AF:

0.000589

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000735

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.472

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000115

Hom.:

Bravo

AF:

0.000121

ExAC

AF:

0.0000659

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.062

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.34

CADD

Benign

(source)

DANN

Benign

0.90

DEOGEN2

Benign

0.033

Eigen

Benign

-0.49

Eigen_PC

Benign

-0.25

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.93

M_CAP

Benign

0.013

MetaRNN

Benign

0.073

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.55

PhyloP100

3.4

PrimateAI

Uncertain

0.70

PROVEAN

Benign

0.030

REVEL

Benign

0.065

Sift

Benign

1.0

Sift4G

Benign

0.56

Polyphen

0.016

Vest4

0.15

MVP

0.70

MPC

0.66

ClinPred

0.048

GERP RS

3.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.085

gMVP

0.50

Mutation Taster

=84/16

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over