Variant 17-41149343-C-T 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_033188.4(KRTAP4-5):c.425G>A(p.Arg142His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000707 in 1,612,996 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00072 ( 0 hom. )

Consequence

KRTAP4-5
NM_033188.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.695

Variant links:

Genes affected

KRTAP4-5 (HGNC:18899): (keratin associated protein 4-5) 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]

KRTAP4-5 links:

Genome browser will be placed here

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=0.014244318).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KRTAP4-5	NM_033188.4 linkuse as main transcript	c.425G>A	p.Arg142His	missense_variant	1/1	ENST00000343246.6	NP_149445.3	Q9BYR2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KRTAP4-5	ENST00000343246.6 linkuse as main transcript	c.425G>A	p.Arg142His	missense_variant	1/1	6	NM_033188.4	ENSP00000340546.4		Q9BYR2

Frequencies

GnomAD3 genomes

AF:

0.000532

AC:

AN:

152148

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000966

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00124

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00101

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000511

AC:

126

AN:

246640

Hom.:

AF XY:

0.000531

AC XY:

AN XY:

133716

show subpopulations

Gnomad AFR exome

AF:

0.000324

Gnomad AMR exome

AF:

0.000147

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000220

Gnomad SAS exome

AF:

0.000361

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000891

Gnomad OTH exome

AF:

0.000331

GnomAD4 exome

AF:

0.000725

AC:

1059

AN:

1460732

Hom.:

Cov.:

AF XY:

0.000705

AC XY:

512

AN XY:

726558

show subpopulations

Gnomad4 AFR exome

AF:

0.000389

Gnomad4 AMR exome

AF:

0.000135

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000126

Gnomad4 SAS exome

AF:

0.000371

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000852

Gnomad4 OTH exome

AF:

0.000911

GnomAD4 genome

AF:

0.000532

AC:

AN:

152264

Hom.:

Cov.:

AF XY:

0.000497

AC XY:

AN XY:

74440

show subpopulations

Gnomad4 AFR

AF:

0.0000963

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00124

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00101

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000817

Hom.:

Bravo

AF:

0.000533

ESP6500AA

AF:

0.000455

AC:

ESP6500EA

AF:

0.000702

AC:

ExAC

AF:

0.000462

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

Sep 16, 2021

The c.425G>A (p.R142H) alteration is located in exon 1 (coding exon 1) of the KRTAP4-5 gene. This alteration results from a G to A substitution at nucleotide position 425, causing the arginine (R) at amino acid position 142 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

0.097

BayesDel_addAF

Benign

-0.58

BayesDel_noAF

Benign

-0.68

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.012

Eigen

Benign

-0.95

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.0049

LIST_S2

Benign

0.14

M_CAP

Benign

0.0045

MetaRNN

Benign

0.014

MetaSVM

Benign

-0.99

MutationAssessor

Uncertain

2.5

PROVEAN

Uncertain

-3.0

REVEL

Benign

0.034

Sift

Benign

0.084

Sift4G

Uncertain

0.043

Vest4

0.057

MVP

0.067

MPC

0.17

ClinPred

0.038

GERP RS

-4.7

Varity_R

0.057

gMVP

0.083

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.

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