Variant 17-41226812-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_031961.3(KRTAP9-2):c.158G>A(p.Arg53His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000811 in 1,504,780 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000078 ( 0 hom. )

Consequence

KRTAP9-2
NM_031961.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -3.00

Variant links:

Genes affected

KRTAP9-2 (HGNC:16926): (keratin associated protein 9-2) 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]

KRTAP9-2 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.032764852).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KRTAP9-2	NM_031961.3 linkuse as main transcript	c.158G>A	p.Arg53His	missense_variant	1/1	ENST00000377721.3	NP_114167.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KRTAP9-2	ENST00000377721.3 linkuse as main transcript	c.158G>A	p.Arg53His	missense_variant	1/1		NM_031961.3	ENSP00000366950	P1

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

152032

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.000415

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000955

AC:

AN:

251338

Hom.:

AF XY:

0.000103

AC XY:

AN XY:

135836

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000218

Gnomad SAS exome

AF:

0.000261

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000792

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000776

AC:

105

AN:

1352630

Hom.:

Cov.:

191

AF XY:

0.0000686

AC XY:

AN XY:

670640

show subpopulations

Gnomad4 AFR exome

AF:

0.000361

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.0000429

Gnomad4 EAS exome

AF:

0.000140

Gnomad4 SAS exome

AF:

0.000206

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000546

Gnomad4 OTH exome

AF:

0.000272

GnomAD4 genome

AF:

0.000112

AC:

AN:

152150

Hom.:

Cov.:

AF XY:

0.0000941

AC XY:

AN XY:

74366

show subpopulations

Gnomad4 AFR

AF:

0.000120

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000194

Gnomad4 SAS

AF:

0.000415

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000276

Hom.:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000132

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

Dec 13, 2023

The c.158G>A (p.R53H) alteration is located in exon 1 (coding exon 1) of the KRTAP9-2 gene. This alteration results from a G to A substitution at nucleotide position 158, causing the arginine (R) at amino acid position 53 to be replaced by a histidine (H). 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

0.078

BayesDel_addAF

Benign

-0.55

BayesDel_noAF

Benign

-0.70

CADD

Benign

0.070

DANN

Benign

0.67

DEOGEN2

Benign

0.089

Eigen

Benign

-0.88

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.011

LIST_S2

Benign

0.11

M_CAP

Benign

0.0013

MetaRNN

Benign

0.033

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.3

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.17

PROVEAN

Benign

-2.0

REVEL

Benign

0.10

Sift

Benign

0.21

Sift4G

Benign

0.064

Polyphen

0.96

Vest4

0.042

MVP

0.17

MPC

1.4

ClinPred

0.031

GERP RS

-4.4

Varity_R

0.024

gMVP

0.053

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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