21-44697476-C-T

Variant summary

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

The NM_198699.1(KRTAP10-12):​c.275C>T​(p.Pro92Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000415 in 1,613,990 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: 𝑓 0.000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000039 ( 0 hom. )

Consequence

KRTAP10-12
NM_198699.1 missense

Scores

2
1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.04
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=0.039637417).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP10-12NM_198699.1 linkuse as main transcriptc.275C>T p.Pro92Leu missense_variant 1/1 ENST00000400365.3 NP_941972.1 P60413
TSPEARNM_144991.3 linkuse as main transcriptc.82+13957G>A intron_variant ENST00000323084.9 NP_659428.2 Q8WU66-1
TSPEARNM_001272037.2 linkuse as main transcriptc.-184-6870G>A intron_variant NP_001258966.1 Q8WU66

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRTAP10-12ENST00000400365.3 linkuse as main transcriptc.275C>T p.Pro92Leu missense_variant 1/16 NM_198699.1 ENSP00000383216.3 P60413
TSPEARENST00000323084.9 linkuse as main transcriptc.82+13957G>A intron_variant 1 NM_144991.3 ENSP00000321987.4 Q8WU66-1
TSPEARENST00000642437.1 linkuse as main transcriptn.83-6870G>A intron_variant ENSP00000496535.1 A0A2R8YFK6

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152144
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000415
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000799
AC:
20
AN:
250260
Hom.:
0
AF XY:
0.0000811
AC XY:
11
AN XY:
135596
show subpopulations
Gnomad AFR exome
AF:
0.000508
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000547
Gnomad SAS exome
AF:
0.000196
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000883
Gnomad OTH exome
AF:
0.000329
GnomAD4 exome
AF:
0.0000390
AC:
57
AN:
1461728
Hom.:
0
Cov.:
33
AF XY:
0.0000481
AC XY:
35
AN XY:
727190
show subpopulations
Gnomad4 AFR exome
AF:
0.000179
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000220
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000225
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152262
Hom.:
0
Cov.:
32
AF XY:
0.0000672
AC XY:
5
AN XY:
74448
show subpopulations
Gnomad4 AFR
AF:
0.000144
Gnomad4 AMR
AF:
0.0000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000903
Hom.:
0
ExAC
AF:
0.0000989
AC:
12

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 GeneticsDec 26, 2023The c.275C>T (p.P92L) alteration is located in exon 1 (coding exon 1) of the KRTAP10-12 gene. This alteration results from a C to T substitution at nucleotide position 275, causing the proline (P) at amino acid position 92 to be replaced by a leucine (L). 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
0.083
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.48
CADD
Benign
18
DANN
Benign
0.93
DEOGEN2
Benign
0.028
T;.
Eigen
Benign
-0.38
Eigen_PC
Benign
-0.45
FATHMM_MKL
Benign
0.067
N
LIST_S2
Benign
0.13
T;T
M_CAP
Benign
0.0033
T
MetaRNN
Benign
0.040
T;T
MetaSVM
Benign
-0.98
T
MutationAssessor
Pathogenic
3.1
M;.
PrimateAI
Benign
0.24
T
PROVEAN
Pathogenic
-7.5
D;.
REVEL
Benign
0.12
Sift
Benign
0.059
T;.
Sift4G
Uncertain
0.044
D;D
Polyphen
0.50
P;.
Vest4
0.35
MVP
0.048
MPC
0.28
ClinPred
0.23
T
GERP RS
3.4
Varity_R
0.15
gMVP
0.057

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs556006639; hg19: chr21-46117391; COSMIC: COSV105900986; COSMIC: COSV105900986; API