chr21-44579849-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_198694.3(KRTAP10-5):c.730G>A(p.Ala244Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000464 in 1,594,960 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000046 ( 0 hom. )

Consequence

KRTAP10-5
NM_198694.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.93

Publications

0 publications found

Variant links:

Genes affected

KRTAP10-5 (HGNC:22969): (keratin associated protein 10-5) This is an intronless gene located in a cluster of related genes on the q arm of chromosome 21. The proteins encoded by these genes form disulfide bonds with cysteine residues in hair keratins, thereby contributing to the structure and stability of hair fibers. [provided by RefSeq, Apr 2014]

KRTAP10-5 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 Gene-Disease associations (from GenCC):

ectodermal dysplasia 14, hair/tooth type with or without hypohidrosis
Inheritance: AR Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
hearing loss, autosomal recessive
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
autosomal recessive nonsyndromic hearing loss 98
Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
nonsyndromic genetic hearing loss
Inheritance: AR Classification: NO_KNOWN Submitted by: ClinGen

TSPEAR links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.029575408).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_198694.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KRTAP10-5	NM_198694.3	MANE Select	c.730G>A	p.Ala244Thr	missense	Exon 1 of 1	NP_941967.3	P60370
TSPEAR	NM_144991.3	MANE Select	c.83-11844G>A		intron	N/A	NP_659428.2
TSPEAR	NM_001272037.2		c.-122-11844G>A		intron	N/A	NP_001258966.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KRTAP10-5	ENST00000400372.1	TSL:6 MANE Select	c.730G>A	p.Ala244Thr	missense	Exon 1 of 1	ENSP00000383223.1	P60370
TSPEAR	ENST00000323084.9	TSL:1 MANE Select	c.83-11844G>A		intron	N/A	ENSP00000321987.4	Q8WU66-1
TSPEAR	ENST00000943283.1		c.83-11844G>A		intron	N/A	ENSP00000613342.1

Frequencies

GnomAD3 genomes

AF:

0.0000527

AC:

AN:

151782

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000485

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000561

AC:

AN:

249742

AF XY:

0.0000517

show subpopulations

Gnomad AFR exome

AF:

0.0000635

Gnomad AMR exome

AF:

0.000174

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000111

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000457

AC:

AN:

1443060

Hom.:

Cov.:

113

AF XY:

0.0000362

AC XY:

AN XY:

718028

show subpopulations

African (AFR)

AF:

0.0000305

AC:

AN:

32796

American (AMR)

AF:

0.000140

AC:

AN:

42902

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25814

East Asian (EAS)

AF:

0.00

AC:

AN:

38708

South Asian (SAS)

AF:

0.0000947

AC:

AN:

84476

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53084

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5674

European-Non Finnish (NFE)

AF:

0.0000409

AC:

AN:

1100054

Other (OTH)

AF:

0.000101

AC:

AN:

59552

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.442

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000527

AC:

AN:

151900

Hom.:

Cov.:

AF XY:

0.0000673

AC XY:

AN XY:

74252

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41400

American (AMR)

AF:

0.000196

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5144

South Asian (SAS)

AF:

0.000208

AC:

AN:

4798

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10588

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.0000295

AC:

AN:

67910

Other (OTH)

AF:

0.00

AC:

AN:

2100

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000678

Hom.:

ExAC

AF:

0.0000412

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.068

BayesDel_addAF

Benign

-0.56

BayesDel_noAF

Benign

-0.77

CADD

Benign

0.015

(source)

DANN

Benign

0.68

Eigen

Benign

-0.94

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.014

M_CAP

Benign

0.0051

MetaRNN

Benign

0.030

MetaSVM

Benign

-0.90

PhyloP100

-1.9

PrimateAI

Benign

0.19

PROVEAN

Benign

0.86

REVEL

Benign

0.038

Sift

Benign

0.62

Sift4G

Benign

0.83

Vest4

0.030

MutPred

0.27

Gain of glycosylation at A244 (P = 0.0348)

MVP

0.030

MPC

0.12

ClinPred

0.026

GERP RS

1.1

gMVP

0.030

Mutation Taster

=97/3

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over