rs782350749

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_198687.2(KRTAP10-4):​c.122G>A​(p.Cys41Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C41S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000067 ( 0 hom., cov: 47)
Exomes 𝑓: 0.0000014 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

KRTAP10-4
NM_198687.2 missense

Scores

1
7
9

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.939

Publications

0 publications found
Variant links:
Genes affected
KRTAP10-4 (HGNC:20521): (keratin associated protein 10-4) 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]
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: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • hearing loss, autosomal recessive
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • autosomal recessive nonsyndromic hearing loss 98
    Inheritance: AR Classification: LIMITED, NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia
  • nonsyndromic genetic hearing loss
    Inheritance: AR Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KRTAP10-4NM_198687.2 linkc.122G>A p.Cys41Tyr missense_variant Exon 1 of 1 ENST00000400374.4 NP_941960.2 P60372
TSPEARNM_144991.3 linkc.83-5875C>T intron_variant Intron 1 of 11 ENST00000323084.9 NP_659428.2 Q8WU66-1
TSPEARNM_001272037.2 linkc.-122-5875C>T intron_variant Intron 2 of 12 NP_001258966.1 Q8WU66

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
KRTAP10-4ENST00000400374.4 linkc.122G>A p.Cys41Tyr missense_variant Exon 1 of 1 6 NM_198687.2 ENSP00000383225.3 P60372
TSPEARENST00000323084.9 linkc.83-5875C>T intron_variant Intron 1 of 11 1 NM_144991.3 ENSP00000321987.4 Q8WU66-1
TSPEARENST00000642437.1 linkn.*28-5875C>T intron_variant Intron 2 of 12 ENSP00000496535.1 A0A2R8YFK6
TSPEARENST00000397916.1 linkn.-64C>T upstream_gene_variant 1

Frequencies

GnomAD3 genomes
AF:
0.00000668
AC:
1
AN:
149726
Hom.:
0
Cov.:
47
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00000137
AC:
2
AN:
1459214
Hom.:
0
Cov.:
234
AF XY:
0.00000138
AC XY:
1
AN XY:
725998
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
31642
American (AMR)
AF:
0.00
AC:
0
AN:
44652
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26106
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39496
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86224
European-Finnish (FIN)
AF:
0.0000375
AC:
2
AN:
53404
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5536
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111940
Other (OTH)
AF:
0.00
AC:
0
AN:
60214
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.225
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00000668
AC:
1
AN:
149726
Hom.:
0
Cov.:
47
AF XY:
0.0000137
AC XY:
1
AN XY:
73212
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
39050
American (AMR)
AF:
0.00
AC:
0
AN:
15216
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10632
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2070
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.275
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Benign
-0.097
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
21
DANN
Uncertain
0.98
Eigen
Uncertain
0.42
Eigen_PC
Uncertain
0.29
FATHMM_MKL
Uncertain
0.79
D
LIST_S2
Benign
0.81
T;.;T
M_CAP
Benign
0.026
D
MetaRNN
Uncertain
0.58
D;D;D
MetaSVM
Benign
-1.0
T
PhyloP100
0.94
PrimateAI
Benign
0.29
T
PROVEAN
Pathogenic
-9.0
.;D;.
REVEL
Benign
0.17
Sift
Uncertain
0.0010
.;D;.
Sift4G
Uncertain
0.040
.;D;.
Vest4
0.35
MutPred
0.60
.;Gain of catalytic residue at C41 (P = 0.0982);.;
MVP
0.41
MPC
1.7
ClinPred
1.0
D
GERP RS
4.5
PromoterAI
-0.015
Neutral
gMVP
0.17
Mutation Taster
=89/11
polymorphism

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

Other links and lift over

dbSNP: rs782350749; hg19: chr21-45993757; API