NM_000226.4:c.1141G>T

Variant names:

• chr17-41568537-C-A
• rs193920878
• NM_000226.4:c.1141G>T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_000226.4(KRT9):​c.1141G>T​(p.Glu381*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 31)
• Consequence: KRT9 NM_000226.4 stop_gained
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 2.95
• Publications: 0 publications found

Genes affected

KRT9 (HGNC:6447): (keratin 9) This gene encodes the type I keratin 9, an intermediate filament chain expressed only in the terminally differentiated epidermis of palms and soles. Mutations in this gene cause epidermolytic palmoplantar keratoderma. [provided by RefSeq, Jul 2008]

KRT9 Gene-Disease associations (from GenCC):

• epidermolytic palmoplantar keratoderma, 1

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Uncertain_significance. The variant received 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
KRT9	NM_000226.4	c.1141G>T	p.Glu381*	stop_gained	Exon 5 of 8	ENST00000246662.9	NP_000217.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KRT9	ENST00000246662.9	c.1141G>T	p.Glu381*	stop_gained	Exon 5 of 8	1	NM_000226.4	ENSP00000246662.4
KRT9	ENST00000588431.1	c.442G>T	p.Glu148*	stop_gained	Exon 6 of 9	1		ENSP00000467932.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 31

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

Prostate cancer Uncertain:1

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Science for Life laboratory, Karolinska Institutet

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: literature only

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.58	D
BayesDel_noAF	Pathogenic	0.60
CADD	Pathogenic	39
DANN	Uncertain	1.0
Eigen	Pathogenic	0.75
Eigen_PC	Uncertain	0.52
FATHMM_MKL	Pathogenic	0.98	D
PhyloP100		2.9
Vest4		0.74
GERP RS		4.2

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs193920878; hg19: chr17-39724789; COSMIC: COSV55855195;