chr21-30592582-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_181605.4(KRTAP6-3):​c.137G>A​(p.Gly46Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000869 in 1,610,940 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 10/16 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

KRTAP6-3
NM_181605.4 missense

Scores

3
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.04
Variant links:
Genes affected
KRTAP6-3 (HGNC:18933): (keratin associated protein 6-3) Predicted to be involved in keratinization. Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.29520926).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KRTAP6-3NM_181605.4 linkuse as main transcriptc.137G>A p.Gly46Asp missense_variant 1/1 ENST00000391624.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KRTAP6-3ENST00000391624.1 linkuse as main transcriptc.137G>A p.Gly46Asp missense_variant 1/1 NM_181605.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151674
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000194
Gnomad SAS
AF:
0.000209
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000597
AC:
15
AN:
251178
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135750
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000654
Gnomad SAS exome
AF:
0.0000980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000822
AC:
12
AN:
1459266
Hom.:
0
Cov.:
30
AF XY:
0.00000826
AC XY:
6
AN XY:
725994
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000202
Gnomad4 SAS exome
AF:
0.0000349
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151674
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74074
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000194
Gnomad4 SAS
AF:
0.000209
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.0000741
AC:
9
Asia WGS
AF:
0.00144
AC:
5
AN:
3478

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 GeneticsSep 22, 2023The c.137G>A (p.G46D) alteration is located in exon 1 (coding exon 1) of the KRTAP6-3 gene. This alteration results from a G to A substitution at nucleotide position 137, causing the glycine (G) at amino acid position 46 to be replaced by an aspartic acid (D). 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
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
14
DANN
Uncertain
0.98
Eigen
Benign
0.051
Eigen_PC
Benign
-0.12
FATHMM_MKL
Benign
0.36
N
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.30
T
MetaSVM
Benign
-0.87
T
MutationTaster
Benign
0.58
N
PROVEAN
Uncertain
-3.5
D
REVEL
Benign
0.14
Sift4G
Uncertain
0.015
D
Vest4
0.46
MVP
0.96
MPC
0.068
ClinPred
0.29
T
GERP RS
2.2
gMVP
0.21

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs750115408; hg19: chr21-31964901; API