chr17-41583248-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_000526.5(KRT14):​c.1261G>A​(p.Gly421Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000248 in 1,613,404 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

KRT14
NM_000526.5 missense

Scores

7
9
3

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 6.14
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM1
In a region_of_interest Coil 2 (size 138) in uniprot entity K1C14_HUMAN there are 10 pathogenic changes around while only 0 benign (100%) in NM_000526.5
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.911

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRT14NM_000526.5 linkuse as main transcriptc.1261G>A p.Gly421Ser missense_variant 6/8 ENST00000167586.7 NP_000517.3 P02533

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRT14ENST00000167586.7 linkuse as main transcriptc.1261G>A p.Gly421Ser missense_variant 6/81 NM_000526.5 ENSP00000167586.6 P02533
KRT14ENST00000441550.2 linkuse as main transcriptn.208G>A non_coding_transcript_exon_variant 1/22
KRT14ENST00000476662.1 linkuse as main transcriptn.*1G>A downstream_gene_variant 2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152114
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251196
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135846
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000867
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461290
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
726942
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000671
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152114
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74300
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

KRT14-related disorder Uncertain:1
Uncertain significance, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJul 24, 2024The KRT14 c.1261G>A variant is predicted to result in the amino acid substitution p.Gly421Ser. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.0087% of alleles in individuals of Latino descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.75
BayesDel_addAF
Pathogenic
0.18
D
BayesDel_noAF
Pathogenic
0.22
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.80
D
Eigen
Uncertain
0.55
Eigen_PC
Uncertain
0.58
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Uncertain
0.87
D
M_CAP
Uncertain
0.17
D
MetaRNN
Pathogenic
0.91
D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Uncertain
2.5
M
PrimateAI
Uncertain
0.59
T
PROVEAN
Uncertain
-4.4
D
REVEL
Pathogenic
0.74
Sift
Benign
0.18
T
Sift4G
Benign
0.075
T
Polyphen
0.87
P
Vest4
0.86
MutPred
0.71
Gain of phosphorylation at G421 (P = 0.0337);
MVP
0.96
MPC
1.3
ClinPred
0.97
D
GERP RS
5.7
Varity_R
0.67
gMVP
0.93

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.

Other links and lift over

dbSNP: rs1242625413; hg19: chr17-39739500; API