Variant 17-41167665-G-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_033187.2(KRTAP4-3):c.508C>A(p.Arg170Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,658 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: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

KRTAP4-3
NM_033187.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.239

Variant links:

Genes affected

KRTAP4-3 (HGNC:18908): (keratin associated protein 4-3) Involved in aging and hair cycle. Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

KRTAP4-3 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=0.0322116).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KRTAP4-3	NM_033187.2 linkuse as main transcript	c.508C>A	p.Arg170Ser	missense_variant	1/1	ENST00000391356.4	NP_149443.1	Q9BYR4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KRTAP4-3	ENST00000391356.4 linkuse as main transcript	c.508C>A	p.Arg170Ser	missense_variant	1/1	6	NM_033187.2	ENSP00000375151.2		Q9BYR4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000803

AC:

AN:

249098

Hom.:

AF XY:

0.00000739

AC XY:

AN XY:

135228

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000111

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461658

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727090

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000826

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

Jun 19, 2024

The c.508C>A (p.R170S) alteration is located in exon 1 (coding exon 1) of the KRTAP4-3 gene. This alteration results from a C to A substitution at nucleotide position 508, causing the arginine (R) at amino acid position 170 to be replaced by a serine (S). 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

0.15

BayesDel_addAF

Benign

-0.44

BayesDel_noAF

Benign

-0.64

CADD

Benign

7.9

DANN

Benign

0.79

DEOGEN2

Benign

0.00054

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.042

LIST_S2

Benign

0.030

M_CAP

Benign

0.0042

MetaRNN

Benign

0.032

MetaSVM

Benign

-0.89

MutationAssessor

Benign

-1.2

MutationTaster

Benign

1.0

PrimateAI

Benign

0.19

PROVEAN

Benign

0.49

REVEL

Benign

0.041

Sift

Benign

0.48

Sift4G

Benign

0.40

Polyphen

0.13

Vest4

0.16

MutPred

0.32

Gain of glycosylation at R170 (P = 0.0064);

MVP

0.081

MPC

0.025

ClinPred

0.075

GERP RS

2.9

Varity_R

0.070

gMVP

0.044

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