rs150021015

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_005555.4(KRT6B):​c.1510G>A​(p.Gly504Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000731 in 1,613,964 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000051 ( 0 hom. )

Consequence

KRT6B
NM_005555.4 missense

Scores

3
15

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 0.394

Publications

3 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.051553875).
BP6
Variant 12-52447375-C-T is Benign according to our data. Variant chr12-52447375-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 737625.
BS2
High AC in GnomAd4 at 43 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.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KRT6B
NM_005555.4
MANE Select
c.1510G>Ap.Gly504Ser
missense
Exon 9 of 9NP_005546.2P04259

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KRT6B
ENST00000252252.4
TSL:1 MANE Select
c.1510G>Ap.Gly504Ser
missense
Exon 9 of 9ENSP00000252252.3P04259

Frequencies

GnomAD3 genomes
AF:
0.000283
AC:
43
AN:
152172
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000941
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.00
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000112
AC:
28
AN:
251030
AF XY:
0.0000737
show subpopulations
Gnomad AFR exome
AF:
0.00136
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000513
AC:
75
AN:
1461674
Hom.:
0
Cov.:
30
AF XY:
0.0000413
AC XY:
30
AN XY:
727130
show subpopulations
African (AFR)
AF:
0.00176
AC:
59
AN:
33472
American (AMR)
AF:
0.0000224
AC:
1
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86252
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53410
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.00000720
AC:
8
AN:
1111858
Other (OTH)
AF:
0.0000663
AC:
4
AN:
60370
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
5
11
16
22
27
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000282
AC:
43
AN:
152290
Hom.:
0
Cov.:
33
AF XY:
0.000295
AC XY:
22
AN XY:
74468
show subpopulations
African (AFR)
AF:
0.000938
AC:
39
AN:
41570
American (AMR)
AF:
0.000196
AC:
3
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68018
Other (OTH)
AF:
0.000473
AC:
1
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000219
Hom.:
0
Bravo
AF:
0.000321
ESP6500AA
AF:
0.000908
AC:
4
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000132
AC:
16

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)
-
-
1
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.074
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.30
CADD
Benign
3.8
DANN
Benign
0.91
DEOGEN2
Uncertain
0.47
T
Eigen
Benign
-0.88
Eigen_PC
Benign
-0.95
FATHMM_MKL
Benign
0.10
N
LIST_S2
Benign
0.054
T
M_CAP
Uncertain
0.095
D
MetaRNN
Benign
0.052
T
MetaSVM
Benign
-0.32
T
MutationAssessor
Benign
1.1
L
PhyloP100
0.39
PrimateAI
Benign
0.32
T
PROVEAN
Uncertain
-2.7
D
REVEL
Benign
0.12
Sift
Benign
0.30
T
Sift4G
Benign
0.20
T
Polyphen
0.37
B
Vest4
0.23
MVP
0.78
MPC
0.17
ClinPred
0.021
T
GERP RS
0.35
Varity_R
0.054
gMVP
0.44
Mutation Taster
=91/9
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs150021015; hg19: chr12-52841159; COSMIC: COSV106353984; API