rs552325168

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_153490.3(KRT13):​c.1270+8A>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000978 in 1,583,804 control chromosomes in the GnomAD database, including 30 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (no stars).

Frequency

Genomes: 𝑓 0.00056 ( 1 hom., cov: 33)
Exomes 𝑓: 0.0010 ( 29 hom. )

Consequence

KRT13
NM_153490.3 splice_region, intron

Scores

2
Splicing: ADA: 0.00005492
2

Clinical Significance

Benign no assertion criteria provided B:1

Conservation

PhyloP100: -0.257

Publications

0 publications found
Variant links:
Genes affected
KRT13 (HGNC:6415): (keratin 13) The protein encoded by this gene is a member of the keratin gene family. The keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into cytokeratins and hair keratins. Most of the type I cytokeratins consist of acidic proteins which are arranged in pairs of heterotypic keratin chains. This type I cytokeratin is paired with keratin 4 and expressed in the suprabasal layers of non-cornified stratified epithelia. Mutations in this gene and keratin 4 have been associated with the autosomal dominant disorder White Sponge Nevus. The type I cytokeratins are clustered in a region of chromosome 17q21.2. Alternative splicing of this gene results in multiple transcript variants; however, not all variants have been described. [provided by RefSeq, Jul 2008]
KRT13 Gene-Disease associations (from GenCC):
  • white sponge nevus 2
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • hereditary mucosal leukokeratosis
    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 -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BP6
Variant 17-41501711-T-C is Benign according to our data. Variant chr17-41501711-T-C is described in ClinVar as Benign. ClinVar VariationId is 3042192.Status of the report is no_assertion_criteria_provided, 0 stars.
BS1
Variant frequency is greater than expected in population sas. GnomAdExome4 allele frequency = 0.00102 (1463/1431586) while in subpopulation SAS AF = 0.0165 (1346/81626). AF 95% confidence interval is 0.0158. There are 29 homozygotes in GnomAdExome4. There are 1030 alleles in the male GnomAdExome4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High AC in GnomAd4 at 86 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_153490.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KRT13
NM_153490.3
MANE Select
c.1270+8A>G
splice_region intron
N/ANP_705694.3P13646-1
KRT13
NM_002274.4
c.1245-349A>G
intron
N/ANP_002265.3P13646-3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
KRT13
ENST00000246635.8
TSL:1 MANE Select
c.1270+8A>G
splice_region intron
N/AENSP00000246635.3P13646-1
KRT13
ENST00000336861.7
TSL:1
c.1245-349A>G
intron
N/AENSP00000336604.3P13646-3
KRT13
ENST00000970738.1
c.1267+8A>G
splice_region intron
N/AENSP00000640797.1

Frequencies

GnomAD3 genomes
AF:
0.000572
AC:
87
AN:
152100
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0170
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.000957
GnomAD2 exomes
AF:
0.00235
AC:
479
AN:
204206
AF XY:
0.00301
show subpopulations
Gnomad AFR exome
AF:
0.0000815
Gnomad AMR exome
AF:
0.000135
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000900
Gnomad OTH exome
AF:
0.000758
GnomAD4 exome
AF:
0.00102
AC:
1463
AN:
1431586
Hom.:
29
Cov.:
33
AF XY:
0.00145
AC XY:
1030
AN XY:
708848
show subpopulations
African (AFR)
AF:
0.0000304
AC:
1
AN:
32938
American (AMR)
AF:
0.0000991
AC:
4
AN:
40354
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25558
East Asian (EAS)
AF:
0.0000260
AC:
1
AN:
38452
South Asian (SAS)
AF:
0.0165
AC:
1346
AN:
81626
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51408
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5732
European-Non Finnish (NFE)
AF:
0.0000319
AC:
35
AN:
1096236
Other (OTH)
AF:
0.00127
AC:
75
AN:
59282
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.478
Heterozygous variant carriers
0
89
178
268
357
446
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
22
44
66
88
110
<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:
86
AN:
152218
Hom.:
1
Cov.:
33
AF XY:
0.000860
AC XY:
64
AN XY:
74410
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41522
American (AMR)
AF:
0.00
AC:
0
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.0168
AC:
81
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67998
Other (OTH)
AF:
0.000947
AC:
2
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.493
Heterozygous variant carriers
0
4
8
12
16
20
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
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
Alfa
AF:
0.000156
Hom.:
0
Bravo
AF:
0.000125
Asia WGS
AF:
0.00635
AC:
22
AN:
3478

ClinVar

ClinVar submissions
Significance:Benign
Revision:no assertion criteria provided
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
KRT13-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
0.93
DANN
Benign
0.76
PhyloP100
-0.26
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000055
dbscSNV1_RF
Benign
0.0
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: rs552325168; hg19: chr17-39657963; API