21-44627398-C-T

Variant names:

Variant summary

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

The NM_198690.3(KRTAP10-9):c.227C>T(p.Thr76Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000725 in 1,614,026 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.000046 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000075 ( 0 hom. )

Consequence

KRTAP10-9
NM_198690.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.02

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:

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=0.041482598).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KRTAP10-9	NM_198690.3 link	c.227C>T	p.Thr76Met	missense_variant	Exon 1 of 1	ENST00000397911.5	NP_941963.2	P60411-1
TSPEAR	NM_144991.3 link	c.83-59393G>A		intron_variant	Intron 1 of 11	ENST00000323084.9	NP_659428.2	Q8WU66-1
TSPEAR	NM_001272037.2 link	c.-122-59393G>A		intron_variant	Intron 2 of 12		NP_001258966.1	Q8WU66

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
KRTAP10-9	ENST00000397911.5 link	c.227C>T	p.Thr76Met	missense_variant	Exon 1 of 1	6	NM_198690.3	ENSP00000381009.3	P60411-1
TSPEAR	ENST00000323084.9 link	c.83-59393G>A		intron_variant	Intron 1 of 11	1	NM_144991.3	ENSP00000321987.4	Q8WU66-1
KRTAP10-9	ENST00000484861.1 link	n.226+50C>T		intron_variant	Intron 1 of 1	1
TSPEAR	ENST00000642437.1 link	n.*28-59393G>A		intron_variant	Intron 2 of 12			ENSP00000496535.1	A0A2R8YFK6

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152226

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000577

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000681

AC:

AN:

249568

Hom.:

AF XY:

0.0000443

AC XY:

AN XY:

135392

show subpopulations

Gnomad AFR exome

AF:

0.000130

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000299

Gnomad EAS exome

AF:

0.000164

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000708

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000753

AC:

110

AN:

1461682

Hom.:

Cov.:

AF XY:

0.0000605

AC XY:

AN XY:

727164

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.000344

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000827

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.0000459

AC:

AN:

152344

Hom.:

Cov.:

AF XY:

0.0000268

AC XY:

AN XY:

74492

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.000577

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000130

Hom.:

Bravo

AF:

0.0000453

ESP6500AA

AF:

0.000228

AC:

ESP6500EA

AF:

0.000117

AC:

ExAC

AF:

0.0000659

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 21, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.227C>T (p.T76M) alteration is located in exon 1 (coding exon 1) of the KRTAP10-9 gene. This alteration results from a C to T substitution at nucleotide position 227, causing the threonine (T) at amino acid position 76 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

0.084

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.69

CADD

Benign

8.0

DANN

Benign

0.70

DEOGEN2

Benign

0.096

T;.

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.0045

LIST_S2

Benign

0.090

T;T

M_CAP

Benign

0.0030

MetaRNN

Benign

0.041

T;T

MetaSVM

Benign

-0.97

MutationAssessor

Benign

1.8

L;.

PrimateAI

Benign

0.21

PROVEAN

Uncertain

-3.8

D;.

REVEL

Benign

0.043

Sift

Benign

0.047

D;.

Sift4G

Benign

0.10

T;T

Polyphen

0.26

B;.

Vest4

0.17

MVP

0.088

ClinPred

0.018

GERP RS

-0.31

Varity_R

0.028

gMVP

0.082

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