chr17-41624235-T-A

Variant names:

• chr17-41624235-T-A
• NM_000422.3:c.275A>T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1 PM2 PM5

The NM_000422.3(KRT17):​c.275A>T​(p.Asn92Ile) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N92S) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 33)
• Consequence: KRT17 NM_000422.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.27

Genes affected

KRT17 (HGNC:6427): (keratin 17) This gene encodes the type I intermediate filament chain keratin 17, expressed in nail bed, hair follicle, sebaceous glands, and other epidermal appendages. Mutations in this gene lead to Jackson-Lawler type pachyonychia congenita and steatocystoma multiplex. [provided by RefSeq, Aug 2008]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM1: In a region_of_interest Coil 1A (size 36) in uniprot entity K1C17_HUMAN there are 15 pathogenic changes around while only 0 benign (100%) in NM_000422.3
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr17-41624235-T-C is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KRT17	NM_000422.3	c.275A>T	p.Asn92Ile	missense_variant	Exon 1 of 8	ENST00000311208.13	NP_000413.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KRT17	ENST00000311208.13	c.275A>T	p.Asn92Ile	missense_variant	Exon 1 of 8	1	NM_000422.3	ENSP00000308452.8

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.42	D
BayesDel_noAF	Pathogenic	0.33
CADD	Pathogenic	29
DANN	Uncertain	0.99
DEOGEN2	Benign	0.013	T
Eigen	Pathogenic	0.92
Eigen_PC	Pathogenic	0.81
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Benign	0.18	T
M_CAP	Pathogenic	0.46	D
MetaRNN	Uncertain	0.52	D
Sift4G	Benign	0.21	T
Vest4		0.43
MVP		0.84
ClinPred		1.0	D
GERP RS		5.0

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-39780487;