Variant 17-41238490-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_031963.3(KRTAP9-8):c.439C>A(p.Pro147Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000503 in 1,589,934 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000082 ( 0 hom., cov: 18)

Exomes 𝑓: 0.000047 ( 1 hom. )

Consequence

KRTAP9-8
NM_031963.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.183

Variant links:

Genes affected

KRTAP9-8 (HGNC:17231): (keratin associated protein 9-8) This protein is a member of the keratin-associated protein (KAP) family. The KAP proteins form a matrix of keratin intermediate filaments which contribute to the structure of hair fibers. KAP family members appear to have unique, family-specific amino- and carboxyl-terminal regions and are subdivided into three multi-gene families according to amino acid composition: the high sulfur, the ultrahigh sulfur, and the high tyrosine/glycine KAPs. This protein is a member of the ultrahigh sulfur KAP family and the gene is localized to a cluster of KAPs at 17q12-q21. [provided by RefSeq, Jul 2008]

KRTAP9-8 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.15021399).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KRTAP9-8	NM_031963.3 linkuse as main transcript	c.439C>A	p.Pro147Thr	missense_variant	1/1	ENST00000254072.7	NP_114169.2	Q9BYQ0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KRTAP9-8	ENST00000254072.7 linkuse as main transcript	c.439C>A	p.Pro147Thr	missense_variant	1/1	6	NM_031963.3	ENSP00000254072.6		Q9BYQ0

Frequencies

GnomAD3 genomes

AF:

0.0000899

AC:

AN:

133490

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000219

Gnomad ASJ

AF:

0.000601

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00667

Gnomad NFE

AF:

0.0000766

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000764

AC:

AN:

235586

Hom.:

AF XY:

0.0000779

AC XY:

AN XY:

128298

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000604

Gnomad ASJ exome

AF:

0.000621

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000997

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000655

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000474

AC:

AN:

1456368

Hom.:

Cov.:

AF XY:

0.0000649

AC XY:

AN XY:

724714

show subpopulations

Gnomad4 AFR exome

AF:

0.000128

Gnomad4 AMR exome

AF:

0.0000672

Gnomad4 ASJ exome

AF:

0.000575

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000104

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000198

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.0000824

AC:

AN:

133566

Hom.:

Cov.:

AF XY:

0.0000775

AC XY:

AN XY:

64534

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000219

Gnomad4 ASJ

AF:

0.000601

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000766

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000960

Hom.:

ExAC

AF:

0.0000499

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

Feb 14, 2023

The c.439C>A (p.P147T) alteration is located in exon 1 (coding exon 1) of the KRTAP9-8 gene. This alteration results from a C to A substitution at nucleotide position 439, causing the proline (P) at amino acid position 147 to be replaced by a threonine (T). 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

0.19

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.60

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.055

Eigen

Benign

-0.13

Eigen_PC

Benign

-0.36

FATHMM_MKL

Benign

0.035

LIST_S2

Benign

0.74

M_CAP

Benign

0.0085

MetaRNN

Benign

0.15

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.1

PrimateAI

Benign

0.24

PROVEAN

Pathogenic

-5.6

REVEL

Benign

0.044

Sift

Uncertain

0.028

Sift4G

Uncertain

0.038

Polyphen

1.0

Vest4

0.32

MutPred

0.54

Gain of sheet (P = 0.0477);

MVP

0.030

MPC

0.46

ClinPred

0.64

GERP RS

2.3

Varity_R

0.26

gMVP

0.084

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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