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chr21-44574373-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_198687.2(KRTAP10-4):​c.615G>A​(p.Thr205=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000117 in 1,604,216 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000097 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00012 ( 1 hom. )

Consequence

KRTAP10-4
NM_198687.2 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.91
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.76).
BP6
Variant 21-44574373-G-A is Benign according to our data. Variant chr21-44574373-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2652765.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KRTAP10-4NM_198687.2 linkuse as main transcriptc.615G>A p.Thr205= synonymous_variant 1/1 ENST00000400374.4
TSPEARNM_144991.3 linkuse as main transcriptc.83-6368C>T intron_variant ENST00000323084.9
TSPEARNM_001272037.2 linkuse as main transcriptc.-122-6368C>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KRTAP10-4ENST00000400374.4 linkuse as main transcriptc.615G>A p.Thr205= synonymous_variant 1/1 NM_198687.2 P1
TSPEARENST00000323084.9 linkuse as main transcriptc.83-6368C>T intron_variant 1 NM_144991.3 P1Q8WU66-1
TSPEARENST00000642437.1 linkuse as main transcriptc.*28-6368C>T intron_variant, NMD_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.0000971
AC:
14
AN:
144220
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000691
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000205
Gnomad SAS
AF:
0.000659
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00391
Gnomad NFE
AF:
0.000120
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000217
AC:
54
AN:
249200
Hom.:
0
AF XY:
0.000251
AC XY:
34
AN XY:
135264
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000548
Gnomad SAS exome
AF:
0.00108
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000160
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.000119
AC:
173
AN:
1459888
Hom.:
1
Cov.:
200
AF XY:
0.000132
AC XY:
96
AN XY:
726270
show subpopulations
Gnomad4 AFR exome
AF:
0.0000300
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000506
Gnomad4 SAS exome
AF:
0.000732
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.0000882
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.0000970
AC:
14
AN:
144328
Hom.:
0
Cov.:
34
AF XY:
0.0000856
AC XY:
6
AN XY:
70064
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000691
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000206
Gnomad4 SAS
AF:
0.000661
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000120
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000843
Hom.:
0

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenSep 01, 2022KRTAP10-4: BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.76
CADD
Benign
5.0
DANN
Benign
0.86

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: rs587721702; hg19: chr21-45994250; COSMIC: COSV59976456; COSMIC: COSV59976456; API