chr21-44627472-G-A

Position:

chr21-44627472-G-A

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_198690.3(KRTAP10-9):c.301G>A(p.Val101Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000182 in 1,542,574 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00017 ( 2 hom. )

Consequence

KRTAP10-9
NM_198690.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.129

Variant links:

Genes affected

KRTAP10-9 (HGNC:22971): (keratin associated protein 10-9) Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

KRTAP10-9 links:

TSPEAR (HGNC:1268): (thrombospondin type laminin G domain and EAR repeats) This gene encodes a protein that contains a N-terminal thrombospondin-type laminin G domain and several tandem arranged epilepsy-associated repeats (EARs). A mutation in this gene is the cause of autosomal recessive deafness-98. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Dec 2012]

TSPEAR links:

KRTAP10-9 (HGNC:):

KRTAP10-9 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0074907243).

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KRTAP10-9	NM_198690.3 linkuse as main transcript	c.301G>A	p.Val101Met	missense_variant	1/1	ENST00000397911.5	NP_941963.2	P60411-1
TSPEAR	NM_144991.3 linkuse as main transcript	c.83-59467C>T		intron_variant		ENST00000323084.9	NP_659428.2	Q8WU66-1
TSPEAR	NM_001272037.2 linkuse as main transcript	c.-122-59467C>T		intron_variant			NP_001258966.1	Q8WU66

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
KRTAP10-9	ENST00000397911.5 linkuse as main transcript	c.301G>A	p.Val101Met	missense_variant	1/1	6	NM_198690.3	ENSP00000381009.3	P60411-1
TSPEAR	ENST00000323084.9 linkuse as main transcript	c.83-59467C>T		intron_variant		1	NM_144991.3	ENSP00000321987.4	Q8WU66-1
KRTAP10-9	ENST00000484861.1 linkuse as main transcript	n.226+124G>A		intron_variant		1
TSPEAR	ENST00000642437.1 linkuse as main transcript	n.*28-59467C>T		intron_variant				ENSP00000496535.1	A0A2R8YFK6

Frequencies

GnomAD3 genomes

AF:

0.000316

AC:

AN:

152046

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00137

Gnomad ASJ

AF:

0.00518

Gnomad EAS

AF:

0.000578

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000883

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000312

AC:

AN:

250294

Hom.:

AF XY:

0.000324

AC XY:

AN XY:

135624

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000260

Gnomad ASJ exome

AF:

0.00526

Gnomad EAS exome

AF:

0.000272

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000883

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000168

AC:

233

AN:

1390408

Hom.:

Cov.:

AF XY:

0.000178

AC XY:

123

AN XY:

689572

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000367

Gnomad4 ASJ exome

AF:

0.00558

Gnomad4 EAS exome

AF:

0.000161

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000502

Gnomad4 OTH exome

AF:

0.000492

GnomAD4 genome

AF:

0.000315

AC:

AN:

152166

Hom.:

Cov.:

AF XY:

0.000417

AC XY:

AN XY:

74404

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00137

Gnomad4 ASJ

AF:

0.00518

Gnomad4 EAS

AF:

0.000580

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000883

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000524

Hom.:

Bravo

AF:

0.000298

ExAC

AF:

0.000206

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000119

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 17, 2021

The c.301G>A (p.V101M) alteration is located in exon 1 (coding exon 1) of the KRTAP10-9 gene. This alteration results from a G to A substitution at nucleotide position 301, causing the valine (V) at amino acid position 101 to be replaced by a methionine (M). 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

0.083

BayesDel_addAF

Benign

-0.49

BayesDel_noAF

Benign

-0.65

CADD

Benign

DANN

Benign

0.89

DEOGEN2

Benign

0.021

T;.

Eigen

Benign

-0.87

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.019

LIST_S2

Benign

0.10

T;T

M_CAP

Benign

0.0028

MetaRNN

Benign

0.0075

T;T

MetaSVM

Benign

-0.96

MutationAssessor

Uncertain

2.4

M;.

PrimateAI

Benign

0.30

PROVEAN

Benign

-2.0

N;.

REVEL

Benign

0.033

Sift

Benign

0.068

T;.

Sift4G

Benign

0.12

T;T

Polyphen

0.30

B;.

Vest4

0.23

MVP

0.055

ClinPred

0.022

GERP RS

0.17

Varity_R

0.036

gMVP

0.050

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