21-44612227-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_198695.2(KRTAP10-8):​c.127G>A​(p.Val43Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000684 in 1,461,560 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

KRTAP10-8
NM_198695.2 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.22
Variant links:
Genes affected
KRTAP10-8 (HGNC:20525): (keratin associated protein 10-8) Enables identical protein binding activity. Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.23614681).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KRTAP10-8NM_198695.2 linkuse as main transcriptc.127G>A p.Val43Met missense_variant 1/1 ENST00000334662.2
TSPEARNM_144991.3 linkuse as main transcriptc.83-44222C>T intron_variant ENST00000323084.9
TSPEARNM_001272037.2 linkuse as main transcriptc.-122-44222C>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KRTAP10-8ENST00000334662.2 linkuse as main transcriptc.127G>A p.Val43Met missense_variant 1/1 NM_198695.2 P1
TSPEARENST00000323084.9 linkuse as main transcriptc.83-44222C>T intron_variant 1 NM_144991.3 P1Q8WU66-1
TSPEARENST00000642437.1 linkuse as main transcriptc.*28-44222C>T intron_variant, NMD_transcript_variant

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251112
Hom.:
0
AF XY:
0.0000442
AC XY:
6
AN XY:
135786
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000131
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000684
AC:
10
AN:
1461560
Hom.:
0
Cov.:
35
AF XY:
0.00000825
AC XY:
6
AN XY:
727126
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000812
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000378
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.00
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 submitterclinical testingAmbry GeneticsJan 31, 2022The c.127G>A (p.V43M) alteration is located in exon 1 (coding exon 1) of the KRTAP10-8 gene. This alteration results from a G to A substitution at nucleotide position 127, causing the valine (V) at amino acid position 43 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
0.15
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.054
T
Eigen
Benign
0.081
Eigen_PC
Benign
-0.024
FATHMM_MKL
Benign
0.54
D
LIST_S2
Benign
0.84
T
M_CAP
Benign
0.0054
T
MetaRNN
Benign
0.24
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.3
M
MutationTaster
Benign
1.0
D;N
PrimateAI
Benign
0.26
T
PROVEAN
Benign
-2.3
N
REVEL
Benign
0.054
Sift
Uncertain
0.021
D
Sift4G
Benign
0.082
T
Polyphen
0.96
D
Vest4
0.18
MutPred
0.40
Gain of helix (P = 0.0425);
MVP
0.38
MPC
0.37
ClinPred
0.34
T
GERP RS
2.5
Varity_R
0.19
gMVP
0.037

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs782037897; hg19: chr21-46032144; API