12-52515038-T-C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP7

The NM_000424.4(KRT5):c.1677A>G(p.Arg559Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. R559R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 20)

Exomes 𝑓: 0.000048 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

KRT5
NM_000424.4 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.122

Publications

1 publications found

Variant links:

Genes affected

KRT5 (HGNC:6442): (keratin 5) 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. This type II cytokeratin is specifically expressed in the basal layer of the epidermis with family member KRT14. Mutations in these genes have been associated with a complex of diseases termed epidermolysis bullosa simplex. The type II cytokeratins are clustered in a region of chromosome 12q12-q13. [provided by RefSeq, Jul 2008]

KRT5 Gene-Disease associations (from GenCC):

Dowling-Degos disease
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet
epidermolysis bullosa simplex 1A, generalized severe
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Genomics England PanelApp, Orphanet
epidermolysis bullosa simplex 2F, with mottled pigmentation
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet, G2P
Dowling-Degos disease 1
Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
epidermolysis bullosa simplex 1B, generalized intermediate
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp
epidermolysis bullosa simplex 1C, localized
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp
epidermolysis bullosa simplex 2B, generalized intermediate
Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
epidermolysis bullosa simplex 2d, generalized, intermediate or severe, autosomal recessive
Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
epidermolysis bullosa simplex 2E, with migratory circinate erythema
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

KRT5 links:

ENSG00000303382 (HGNC:):

ENSG00000303382 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.71).

BP7

Synonymous conserved (PhyloP=-0.122 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000424.4. 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
	KRT5	NM_000424.4	MANE Select	c.1677A>G	p.Arg559Arg	synonymous	Exon 9 of 9	NP_000415.2	P13647

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KRT5	ENST00000252242.9	TSL:1 MANE Select	c.1677A>G	p.Arg559Arg	synonymous	Exon 9 of 9	ENSP00000252242.4	P13647
KRT5	ENST00000552952.1	TSL:2	n.602A>G		non_coding_transcript_exon	Exon 2 of 2
ENSG00000303382	ENST00000794060.1		n.465-1542T>C		intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

76236

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.000349

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00

AC:

AN:

231590

AF XY:

0.00

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000477

AC:

AN:

838474

Hom.:

Cov.:

AF XY:

0.0000576

AC XY:

AN XY:

416446

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

20854

American (AMR)

AF:

0.0000615

AC:

AN:

32496

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

15196

East Asian (EAS)

AF:

0.00

AC:

AN:

15044

South Asian (SAS)

AF:

0.0000842

AC:

AN:

59404

European-Finnish (FIN)

AF:

0.0000937

AC:

AN:

32020

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3522

European-Non Finnish (NFE)

AF:

0.0000446

AC:

AN:

627858

Other (OTH)

AF:

0.0000623

AC:

AN:

32080

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.235

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

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000131

AC:

AN:

76272

Hom.:

Cov.:

AF XY:

0.0000283

AC XY:

AN XY:

35294

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

18994

American (AMR)

AF:

0.00

AC:

AN:

5772

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2108

East Asian (EAS)

AF:

0.00

AC:

AN:

2640

South Asian (SAS)

AF:

0.00

AC:

AN:

2246

European-Finnish (FIN)

AF:

0.000349

AC:

AN:

2868

Middle Eastern (MID)

AF:

0.00

AC:

AN:

166

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

39856

Other (OTH)

AF:

0.00

AC:

AN:

1022

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.275

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:

0.0154

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.71

CADD

Benign

2.7

(source)

DANN

Benign

0.56

PhyloP100

-0.12

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