Variant 17-40793194-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The ENST00000306658.8(KRT28):c.1213A>G(p.Lys405Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000255 in 1,565,550 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00026 ( 1 hom. )

Consequence

KRT28
ENST00000306658.8 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.91

Variant links:

Genes affected

KRT28 (HGNC:30842): (keratin 28) This gene encodes a member of the type I (acidic) keratin family, which belongs to the superfamily of intermediate filament (IF) proteins. Keratins are heteropolymeric structural proteins which form the intermediate filament. These filaments, along with actin microfilaments and microtubules, compose the cytoskeleton of epithelial cells. The type I keratin genes are clustered in a region of chromosome 17q12-q21. [provided by RefSeq, Jul 2009]

KRT28 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.039486796).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KRT28	NM_181535.3 linkuse as main transcript	c.1213A>G	p.Lys405Glu	missense_variant	7/8	ENST00000306658.8	NP_853513.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KRT28	ENST00000306658.8 linkuse as main transcript	c.1213A>G	p.Lys405Glu	missense_variant	7/8	1	NM_181535.3	ENSP00000305263	P1

Frequencies

GnomAD3 genomes

AF:

0.000237

AC:

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

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:

0.000426

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000228

AC:

AN:

210160

Hom.:

AF XY:

0.000209

AC XY:

AN XY:

114566

show subpopulations

Gnomad AFR exome

AF:

0.0000785

Gnomad AMR exome

AF:

0.000538

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000412

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000314

Gnomad OTH exome

AF:

0.000195

GnomAD4 exome

AF:

0.000257

AC:

363

AN:

1413334

Hom.:

Cov.:

AF XY:

0.000242

AC XY:

170

AN XY:

703128

show subpopulations

Gnomad4 AFR exome

AF:

0.000131

Gnomad4 AMR exome

AF:

0.000389

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000125

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000305

Gnomad4 OTH exome

AF:

0.000189

GnomAD4 genome

AF:

0.000237

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74380

show subpopulations

Gnomad4 AFR

AF:

0.0000965

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000426

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000304

Hom.:

Bravo

AF:

0.000253

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000778

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000181

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 27, 2021

The c.1213A>G (p.K405E) alteration is located in exon 7 (coding exon 7) of the KRT28 gene. This alteration results from a A to G substitution at nucleotide position 1213, causing the lysine (K) at amino acid position 405 to be replaced by a glutamic acid (E). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.083

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.25

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0020

Eigen

Benign

-0.40

Eigen_PC

Benign

-0.19

FATHMM_MKL

Uncertain

0.83

LIST_S2

Benign

0.25

M_CAP

Benign

0.010

MetaRNN

Benign

0.039

MetaSVM

Benign

-0.83

MutationAssessor

Benign

1.6

MutationTaster

Benign

0.83

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-0.61

REVEL

Benign

0.20

Sift

Benign

0.14

Sift4G

Benign

0.77

Polyphen

0.0020

Vest4

0.38

MVP

0.27

MPC

0.21

ClinPred

0.028

GERP RS

4.3

Varity_R

0.11

gMVP

0.045

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over