chr21-30613715-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_181602.2(KRTAP6-1):​c.190G>A​(p.Gly64Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000551 in 1,613,940 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000053 ( 0 hom. )

Consequence

KRTAP6-1
NM_181602.2 missense

Scores

2
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.27
Variant links:
Genes affected
KRTAP6-1 (HGNC:18931): (keratin associated protein 6-1) Predicted to be involved in keratinization. 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 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.18797651).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP6-1NM_181602.2 linkc.190G>A p.Gly64Ser missense_variant 1/1 ENST00000329122.2 NP_853633.1 Q3LI64

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRTAP6-1ENST00000329122.2 linkc.190G>A p.Gly64Ser missense_variant 1/16 NM_181602.2 ENSP00000332690.2 Q3LI64

Frequencies

GnomAD3 genomes
AF:
0.0000789
AC:
12
AN:
152098
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.000188
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000797
AC:
20
AN:
251054
Hom.:
0
AF XY:
0.000103
AC XY:
14
AN XY:
135650
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000416
Gnomad NFE exome
AF:
0.0000706
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000527
AC:
77
AN:
1461842
Hom.:
0
Cov.:
30
AF XY:
0.0000523
AC XY:
38
AN XY:
727224
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.000318
Gnomad4 NFE exome
AF:
0.0000396
Gnomad4 OTH exome
AF:
0.000182
GnomAD4 genome
AF:
0.0000789
AC:
12
AN:
152098
Hom.:
0
Cov.:
32
AF XY:
0.0000942
AC XY:
7
AN XY:
74304
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000188
Gnomad4 NFE
AF:
0.000132
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000604
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000741
AC:
9
EpiCase
AF:
0.000164
EpiControl
AF:
0.000178

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 14, 2023The c.190G>A (p.G64S) alteration is located in exon 1 (coding exon 1) of the KRTAP6-1 gene. This alteration results from a G to A substitution at nucleotide position 190, causing the glycine (G) at amino acid position 64 to be replaced by a serine (S). 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
0.097
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.21
CADD
Benign
16
DANN
Benign
0.76
DEOGEN2
Benign
0.087
T
Eigen
Benign
0.086
Eigen_PC
Benign
-0.073
FATHMM_MKL
Benign
0.23
N
LIST_S2
Benign
0.33
T
M_CAP
Benign
0.0068
T
MetaRNN
Benign
0.19
T
MetaSVM
Benign
-0.93
T
PROVEAN
Uncertain
-3.0
D
REVEL
Benign
0.20
Sift4G
Uncertain
0.047
D
Polyphen
1.0
D
Vest4
0.31
MVP
0.28
MPC
0.14
ClinPred
0.23
T
GERP RS
4.5
Varity_R
0.43
gMVP
0.044

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: rs372980382; hg19: chr21-31986034; API