21-44627188-T-C

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The ENST00000323084.9(TSPEAR):​c.83-59183A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000616 in 1,612,714 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00046 ( 2 hom., cov: 33)
Exomes 𝑓: 0.00063 ( 1 hom. )

Consequence

TSPEAR
ENST00000323084.9 intron

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.356
Variant links:
Genes affected
KRTAP10-9 (HGNC:22971): (keratin associated protein 10-9) 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 Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.00984931).
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP10-9NM_198690.3 linkuse as main transcriptc.17T>C p.Met6Thr missense_variant 1/1 ENST00000397911.5 NP_941963.2
TSPEARNM_144991.3 linkuse as main transcriptc.83-59183A>G intron_variant ENST00000323084.9 NP_659428.2
TSPEARNM_001272037.2 linkuse as main transcriptc.-122-59183A>G intron_variant NP_001258966.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRTAP10-9ENST00000397911.5 linkuse as main transcriptc.17T>C p.Met6Thr missense_variant 1/1 NM_198690.3 ENSP00000381009 P1P60411-1
TSPEARENST00000323084.9 linkuse as main transcriptc.83-59183A>G intron_variant 1 NM_144991.3 ENSP00000321987 P1Q8WU66-1
KRTAP10-9ENST00000484861.1 linkuse as main transcriptn.66T>C non_coding_transcript_exon_variant 1/21
TSPEARENST00000642437.1 linkuse as main transcriptc.*28-59183A>G intron_variant, NMD_transcript_variant ENSP00000496535

Frequencies

GnomAD3 genomes
AF:
0.000461
AC:
70
AN:
151946
Hom.:
2
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
Gnomad ASJ
AF:
0.00403
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000677
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.000595
AC:
149
AN:
250520
Hom.:
0
AF XY:
0.000664
AC XY:
90
AN XY:
135544
show subpopulations
Gnomad AFR exome
AF:
0.0000623
Gnomad AMR exome
AF:
0.0000868
Gnomad ASJ exome
AF:
0.00578
Gnomad EAS exome
AF:
0.000164
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.0000464
Gnomad NFE exome
AF:
0.000617
Gnomad OTH exome
AF:
0.00131
GnomAD4 exome
AF:
0.000633
AC:
924
AN:
1460650
Hom.:
1
Cov.:
31
AF XY:
0.000659
AC XY:
479
AN XY:
726630
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.00624
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.0000812
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.000605
Gnomad4 OTH exome
AF:
0.000962
GnomAD4 genome
AF:
0.000460
AC:
70
AN:
152064
Hom.:
2
Cov.:
33
AF XY:
0.000350
AC XY:
26
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.000121
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00403
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000677
Gnomad4 OTH
AF:
0.000474
Alfa
AF:
0.000778
Hom.:
0
Bravo
AF:
0.000465
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000930
AC:
8
ExAC
AF:
0.000568
AC:
69
EpiCase
AF:
0.000981
EpiControl
AF:
0.00113

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 GeneticsNov 07, 2022The c.17T>C (p.M6T) alteration is located in exon 1 (coding exon 1) of the KRTAP10-9 gene. This alteration results from a T to C substitution at nucleotide position 17, causing the methionine (M) at amino acid position 6 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
0.12
BayesDel_addAF
Benign
-0.53
T
BayesDel_noAF
Benign
-0.65
CADD
Benign
12
DANN
Benign
0.59
DEOGEN2
Benign
0.023
T;.
Eigen
Benign
-0.99
Eigen_PC
Benign
-1.0
FATHMM_MKL
Benign
0.048
N
LIST_S2
Benign
0.49
T;T
M_CAP
Benign
0.0024
T
MetaRNN
Benign
0.0098
T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
1.2
L;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.34
T
PROVEAN
Uncertain
-4.0
D;.
REVEL
Benign
0.027
Sift
Benign
0.071
T;.
Sift4G
Benign
0.12
T;T
Polyphen
0.0
B;.
Vest4
0.14
MVP
0.040
ClinPred
0.0092
T
GERP RS
-1.0
Varity_R
0.10
gMVP
0.14

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

LitVar

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

Other links and lift over

dbSNP: rs200504844; hg19: chr21-46047105; API