12-52173101-C-G

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_182507.3(KRT80):c.894G>C(p.Glu298Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000248 in 1,613,474 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

KRT80
NM_182507.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.99

Variant links:

Genes affected

KRT80 (HGNC:27056): (keratin 80) Keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into epithelial keratins and hair keratins. This gene's expression profile shows that it encodes a type II epithelial keratin, although structurally the encoded protein is more like a type II hair keratin. This protein is involved in cell differentiation, localizing near desmosomal plaques in earlier stages of differentiation but then dispersing throughout the cytoplasm in terminally differentiating cells. The type II keratins are clustered in a region of chromosome 12q13. Two transcript variants encoding two different fully functional isoforms have been found for this gene.[provided by RefSeq, Oct 2010]

KRT80 links:

LINC00592 (HGNC:27474): (long intergenic non-protein coding RNA 592)

LINC00592 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KRT80	NM_182507.3 link	c.894G>C	p.Glu298Asp	missense_variant	Exon 6 of 9	ENST00000394815.3	NP_872313.2	Q6KB66-1
KRT80	NM_001081492.2 link	c.894G>C	p.Glu298Asp	missense_variant	Exon 6 of 9		NP_001074961.1	Q6KB66-2
KRT80	XM_005268676.4 link	c.999G>C	p.Glu333Asp	missense_variant	Exon 4 of 7		XP_005268733.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
KRT80	ENST00000394815.3 link	c.894G>C	p.Glu298Asp	missense_variant	Exon 6 of 9	1	NM_182507.3	ENSP00000378292.2	Q6KB66-1
KRT80	ENST00000313234.9 link	c.894G>C	p.Glu298Asp	missense_variant	Exon 6 of 9	1		ENSP00000369361.2	Q6KB66-2
KRT80	ENST00000466011.1 link	n.1050G>C		non_coding_transcript_exon_variant	Exon 4 of 7	2
LINC00592	ENST00000640420.1 link	n.413+8150C>G		intron_variant	Intron 2 of 2	5

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152212

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:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

250588

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

135542

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000265

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000267

AC:

AN:

1461262

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

726910

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000342

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152212

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 17, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.894G>C (p.E298D) alteration is located in exon 6 (coding exon 6) of the KRT80 gene. This alteration results from a G to C substitution at nucleotide position 894, causing the glutamic acid (E) at amino acid position 298 to be replaced by an aspartic acid (D). 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

0.21

BayesDel_addAF

Uncertain

0.098

BayesDel_noAF

Uncertain

-0.030

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.56

.;D

Eigen

Benign

-0.012

Eigen_PC

Benign

0.010

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.70

T;T

M_CAP

Uncertain

0.096

MetaRNN

Uncertain

0.66

D;D

MetaSVM

Uncertain

0.60

MutationAssessor

Uncertain

2.1

M;M

PrimateAI

Uncertain

0.49

PROVEAN

Uncertain

-2.6

D;D

REVEL

Pathogenic

0.71

Sift

Uncertain

0.0070

D;D

Sift4G

Uncertain

0.051

T;T

Polyphen

0.031

B;B

Vest4

0.50

MutPred

0.70

Gain of catalytic residue at R296 (P = 0.0177);Gain of catalytic residue at R296 (P = 0.0177);

MVP

0.69

MPC

0.14

ClinPred

0.89

GERP RS

3.3

Varity_R

0.39

gMVP

0.73

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