12-52447260-A-G

Variant names:

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_005555.4(KRT6B):c.1625T>C(p.Val542Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000704 in 1,614,016 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00056 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00072 ( 1 hom. )

Consequence

KRT6B
NM_005555.4 missense

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.0590

Publications

2 publications found

Variant links:

Genes affected

KRT6B (HGNC:6444): (keratin 6B) The protein encoded by this gene is a member of the keratin gene family. The type II cytokeratins consist of basic or neutral proteins which are arranged in pairs of heterotypic keratin chains coexpressed during differentiation of simple and stratified epithelial tissues. As many as six of this type II cytokeratin (KRT6) have been identified; the multiplicity of the genes is attributed to successive gene duplication events. The genes are expressed with family members KRT16 and/or KRT17 in the filiform papillae of the tongue, the stratified epithelial lining of oral mucosa and esophagus, the outer root sheath of hair follicles, and the glandular epithelia. Mutations in these genes have been associated with pachyonychia congenita. The type II cytokeratins are clustered in a region of chromosome 12q12-q13. [provided by RefSeq, Jul 2008]

KRT6B Gene-Disease associations (from GenCC):

pachyonychia congenita 4
Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
pachyonychia congenita
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

KRT6B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.008858681).

BP6

Variant 12-52447260-A-G is Benign according to our data. Variant chr12-52447260-A-G is described in ClinVar as Benign. ClinVar VariationId is 1573259.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High AC in GnomAd4 at 86 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005555.4. 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
	KRT6B	NM_005555.4	MANE Select	c.1625T>C	p.Val542Ala	missense	Exon 9 of 9	NP_005546.2	P04259

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KRT6B	ENST00000252252.4	TSL:1 MANE Select	c.1625T>C	p.Val542Ala	missense	Exon 9 of 9	ENSP00000252252.3	P04259

Frequencies

GnomAD3 genomes

AF:

0.000565

AC:

AN:

152190

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

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:

0.000377

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00112

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000605

AC:

152

AN:

251364

AF XY:

0.000640

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000867

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000370

Gnomad NFE exome

AF:

0.00122

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000718

AC:

1050

AN:

1461708

Hom.:

Cov.:

AF XY:

0.000715

AC XY:

520

AN XY:

727160

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

33472

American (AMR)

AF:

0.0000671

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.000543

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.000885

AC:

984

AN:

1111878

Other (OTH)

AF:

0.000480

AC:

AN:

60378

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.467

Heterozygous variant carriers

156

234

312

390

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

128

160

<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:

0.000565

AC:

AN:

152308

Hom.:

Cov.:

AF XY:

0.000430

AC XY:

AN XY:

74480

show subpopulations

African (AFR)

AF:

0.000144

AC:

AN:

41578

American (AMR)

AF:

0.00

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.000377

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00112

AC:

AN:

68014

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

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:

0.000611

Hom.:

Bravo

AF:

0.000514

TwinsUK

AF:

0.00135

AC:

ALSPAC

AF:

0.000778

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000698

AC:

ExAC

AF:

0.000824

AC:

100

EpiCase

AF:

0.000818

EpiControl

AF:

0.000415

ClinVar

ClinVar submissions

Significance:Benign

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.060

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.44

CADD

Benign

7.0

(source)

DANN

Benign

0.47

DEOGEN2

Benign

0.038

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.0096

LIST_S2

Benign

0.21

M_CAP

Benign

0.073

MetaRNN

Benign

0.0089

MetaSVM

Benign

-0.72

MutationAssessor

Benign

0.0

PhyloP100

-0.059

PrimateAI

Benign

0.34

PROVEAN

Benign

0.67

REVEL

Benign

0.15

Sift

Benign

1.0

Sift4G

Benign

0.51

Polyphen

0.0

Vest4

0.077

MVP

0.58

MPC

0.21

ClinPred

0.0097

GERP RS

0.40

Varity_R

0.025

gMVP

0.46

Mutation Taster

=100/0

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

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