17-41586393-G-C

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM1PM2PP2PP3

The NM_000526.5(KRT14):c.442C>G(p.Arg148Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,624 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R148C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

KRT14
NM_000526.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.15

Publications

3 publications found

Variant links:

Genes affected

KRT14 (HGNC:6416): (keratin 14) This gene encodes a member of the keratin family, the most diverse group of intermediate filaments. This gene product, a type I keratin, is usually found as a heterotetramer with two keratin 5 molecules, a type II keratin. Together they form the cytoskeleton of epithelial cells. Mutations in the genes for these keratins are associated with epidermolysis bullosa simplex. At least one pseudogene has been identified at 17p12-p11. [provided by RefSeq, Jul 2008]

KRT14 Gene-Disease associations (from GenCC):

epidermolysis bullosa simplex 1A, generalized severe
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Genomics England PanelApp
Naegeli-Franceschetti-Jadassohn syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: Genomics England PanelApp, G2P, Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)
epidermolysis bullosa simplex
Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
epidermolysis bullosa simplex 1D, generalized, intermediate or severe, autosomal recessive
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics, Genomics England PanelApp
dermatopathia pigmentosa reticularis
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp
epidermolysis bullosa simplex 1B, generalized intermediate
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp
epidermolysis bullosa simplex 1C, localized
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp
epidermolysis bullosa simplex 2F, with mottled pigmentation
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

KRT14 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM1

In a region_of_interest Coil 1A (size 35) in uniprot entity K1C14_HUMAN there are 20 pathogenic changes around while only 0 benign (100%) in NM_000526.5

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 39 curated pathogenic missense variants (we use a threshold of 10). The gene has 11 curated benign missense variants. Gene score misZ: 0.8353 (below the threshold of 3.09). Trascript score misZ: 1.2925 (below the threshold of 3.09). GenCC associations: The gene is linked to epidermolysis bullosa simplex 1D, generalized, intermediate or severe, autosomal recessive, Naegeli-Franceschetti-Jadassohn syndrome, dermatopathia pigmentosa reticularis, epidermolysis bullosa simplex 1B, generalized intermediate, epidermolysis bullosa simplex 2F, with mottled pigmentation, epidermolysis bullosa simplex 1C, localized, epidermolysis bullosa simplex 1A, generalized severe, epidermolysis bullosa simplex.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.827

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KRT14	NM_000526.5 link	c.442C>G	p.Arg148Gly	missense_variant	Exon 1 of 8	ENST00000167586.7	NP_000517.3	P02533

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KRT14	ENST00000167586.7 link	c.442C>G	p.Arg148Gly	missense_variant	Exon 1 of 8	1	NM_000526.5	ENSP00000167586.6		P02533

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251478

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461624

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727110

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86240

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5552

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1112010

Other (OTH)

AF:

0.00

AC:

AN:

60372

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

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

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.54

BayesDel_addAF

Pathogenic

0.39

BayesDel_noAF

Pathogenic

0.32

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.78

Eigen

Benign

0.089

Eigen_PC

Benign

0.13

FATHMM_MKL

Uncertain

0.84

LIST_S2

Uncertain

0.94

M_CAP

Uncertain

0.15

MetaRNN

Pathogenic

0.83

MetaSVM

Uncertain

0.50

MutationAssessor

Pathogenic

3.8

PhyloP100

1.2

PrimateAI

Uncertain

0.55

PROVEAN

Pathogenic

-6.2

REVEL

Pathogenic

0.68

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0010

Polyphen

0.11

Vest4

0.69

MutPred

0.63

Loss of MoRF binding (P = 0.0538);

MVP

0.92

MPC

0.72

ClinPred

0.97

GERP RS

5.0

Varity_R

0.81

gMVP

0.97

Mutation Taster

=58/42

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over