21-44627256-C-A

Position:

chr21-44627256-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_198690.3(KRTAP10-9):c.85C>A(p.Pro29Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000149 in 1,612,514 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

KRTAP10-9
NM_198690.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.597

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 Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.33198118).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KRTAP10-9	NM_198690.3 linkuse as main transcript	c.85C>A	p.Pro29Thr	missense_variant	1/1	ENST00000397911.5	NP_941963.2	P60411-1
TSPEAR	NM_144991.3 linkuse as main transcript	c.83-59251G>T		intron_variant		ENST00000323084.9	NP_659428.2	Q8WU66-1
TSPEAR	NM_001272037.2 linkuse as main transcript	c.-122-59251G>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.85C>A	p.Pro29Thr	missense_variant	1/1	6	NM_198690.3	ENSP00000381009.3	P60411-1
TSPEAR	ENST00000323084.9 linkuse as main transcript	c.83-59251G>T		intron_variant		1	NM_144991.3	ENSP00000321987.4	Q8WU66-1
KRTAP10-9	ENST00000484861.1 linkuse as main transcript	n.134C>A		non_coding_transcript_exon_variant	1/2	1
TSPEAR	ENST00000642437.1 linkuse as main transcript	n.*28-59251G>T		intron_variant				ENSP00000496535.1	A0A2R8YFK6

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000576

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000235

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000140

AC:

AN:

249330

Hom.:

AF XY:

0.000118

AC XY:

AN XY:

135280

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000199

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000233

Gnomad NFE exome

AF:

0.000212

Gnomad OTH exome

AF:

0.000660

GnomAD4 exome

AF:

0.000151

AC:

221

AN:

1460338

Hom.:

Cov.:

AF XY:

0.000127

AC XY:

AN XY:

726510

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.000421

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000187

Gnomad4 NFE exome

AF:

0.000165

Gnomad4 OTH exome

AF:

0.000265

GnomAD4 genome

AF:

0.000125

AC:

AN:

152176

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74320

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.000576

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000235

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.0000945

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000165

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.0000593

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 16, 2023

The c.85C>A (p.P29T) alteration is located in exon 1 (coding exon 1) of the KRTAP10-9 gene. This alteration results from a C to A substitution at nucleotide position 85, causing the proline (P) at amino acid position 29 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

0.098

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.40

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.035

T;.

Eigen

Uncertain

0.20

Eigen_PC

Benign

0.11

FATHMM_MKL

Benign

0.22

LIST_S2

Uncertain

0.96

D;T

M_CAP

Benign

0.0047

MetaRNN

Benign

0.33

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Pathogenic

3.5

H;.

PrimateAI

Benign

0.24

PROVEAN

Pathogenic

-7.4

D;.

REVEL

Benign

0.22

Sift

Uncertain

0.0060

D;.

Sift4G

Uncertain

0.045

D;T

Polyphen

0.86

P;.

Vest4

0.41

MVP

0.28

ClinPred

0.67

GERP RS

3.5

Varity_R

0.29

gMVP

0.16

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