21-44697328-G-A

Variant summary

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

The NM_198699.1(KRTAP10-12):​c.127G>A​(p.Ala43Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000193 in 1,613,064 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00019 ( 1 hom. )

Consequence

KRTAP10-12
NM_198699.1 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.347
Variant links:
Genes affected
KRTAP10-12 (HGNC:20533): (keratin associated protein 10-12) 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]

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=0.026792675).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KRTAP10-12NM_198699.1 linkuse as main transcriptc.127G>A p.Ala43Thr missense_variant 1/1 ENST00000400365.3
TSPEARNM_144991.3 linkuse as main transcriptc.82+14105C>T intron_variant ENST00000323084.9
TSPEARNM_001272037.2 linkuse as main transcriptc.-184-6722C>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KRTAP10-12ENST00000400365.3 linkuse as main transcriptc.127G>A p.Ala43Thr missense_variant 1/1 NM_198699.1 P1
TSPEARENST00000323084.9 linkuse as main transcriptc.82+14105C>T intron_variant 1 NM_144991.3 P1Q8WU66-1
TSPEARENST00000642437.1 linkuse as main transcriptc.83-6722C>T intron_variant, NMD_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.000230
AC:
35
AN:
152054
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000145
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:
0.000412
Gnomad OTH
AF:
0.000480
GnomAD3 exomes
AF:
0.000181
AC:
45
AN:
249224
Hom.:
0
AF XY:
0.000200
AC XY:
27
AN XY:
135264
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000380
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000190
AC:
277
AN:
1461010
Hom.:
1
Cov.:
33
AF XY:
0.000180
AC XY:
131
AN XY:
726876
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000696
Gnomad4 FIN exome
AF:
0.0000188
Gnomad4 NFE exome
AF:
0.000232
Gnomad4 OTH exome
AF:
0.0000995
GnomAD4 genome
AF:
0.000230
AC:
35
AN:
152054
Hom.:
0
Cov.:
32
AF XY:
0.000202
AC XY:
15
AN XY:
74276
show subpopulations
Gnomad4 AFR
AF:
0.000145
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000412
Gnomad4 OTH
AF:
0.000480
Alfa
AF:
0.000198
Hom.:
0
Bravo
AF:
0.000174
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000237
AC:
2
ExAC
AF:
0.000231
AC:
28
EpiCase
AF:
0.000273
EpiControl
AF:
0.000296

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 GeneticsJul 15, 2021The c.127G>A (p.A43T) alteration is located in exon 1 (coding exon 1) of the KRTAP10-12 gene. This alteration results from a G to A substitution at nucleotide position 127, causing the alanine (A) at amino acid position 43 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
0.071
BayesDel_addAF
Benign
-0.56
T
BayesDel_noAF
Benign
-0.73
CADD
Benign
5.3
DANN
Benign
0.95
DEOGEN2
Benign
0.032
T
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.021
N
LIST_S2
Benign
0.024
T
M_CAP
Benign
0.0039
T
MetaRNN
Benign
0.027
T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
1.4
L
MutationTaster
Benign
1.0
D;N
PrimateAI
Benign
0.21
T
PROVEAN
Uncertain
-2.8
D
REVEL
Benign
0.028
Sift
Benign
0.046
D
Sift4G
Benign
0.17
T
Polyphen
0.0020
B
Vest4
0.16
MVP
0.072
MPC
0.27
ClinPred
0.023
T
GERP RS
0.51
Varity_R
0.067
gMVP
0.028

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs199900483; hg19: chr21-46117243; COSMIC: COSV59955439; COSMIC: COSV59955439; API