17-41140282-C-T

Variant summary

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

The NM_030976.2(KRTAP4-6):​c.206G>A​(p.Cys69Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000277 in 1,444,438 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: not found (cov: 30)
Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

KRTAP4-6
NM_030976.2 missense

Scores

2
2
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.713
Variant links:
Genes affected
KRTAP4-6 (HGNC:18909): (keratin associated protein 4-6) 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=0.29625696).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP4-6NM_030976.2 linkuse as main transcriptc.206G>A p.Cys69Tyr missense_variant 1/1 ENST00000345847.5 NP_112238.1 Q9BYQ5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRTAP4-6ENST00000345847.5 linkuse as main transcriptc.206G>A p.Cys69Tyr missense_variant 1/16 NM_030976.2 ENSP00000328270.5 Q9BYQ5

Frequencies

GnomAD3 genomes
Cov.:
30
GnomAD3 exomes
AF:
0.00000406
AC:
1
AN:
246214
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
134102
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000546
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000277
AC:
4
AN:
1444438
Hom.:
0
Cov.:
37
AF XY:
0.00000139
AC XY:
1
AN XY:
719704
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000254
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.02e-7
Gnomad4 OTH exome
AF:
0.0000340
GnomAD4 genome
Cov.:
30
ExAC
AF:
0.0000167
AC:
2

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 GeneticsApr 08, 2024The c.206G>A (p.C69Y) alteration is located in exon 1 (coding exon 1) of the KRTAP4-6 gene. This alteration results from a G to A substitution at nucleotide position 206, causing the cysteine (C) at amino acid position 69 to be replaced by a tyrosine (Y). 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
0.29
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
16
DANN
Benign
0.92
DEOGEN2
Benign
0.24
T
Eigen
Benign
0.13
Eigen_PC
Benign
-0.029
FATHMM_MKL
Benign
0.46
N
LIST_S2
Benign
0.064
T
M_CAP
Benign
0.0050
T
MetaRNN
Benign
0.30
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Pathogenic
3.7
H
PrimateAI
Benign
0.27
T
PROVEAN
Pathogenic
-5.8
D
REVEL
Benign
0.086
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0070
D
Vest4
0.22
MutPred
0.64
Loss of glycosylation at S68 (P = 0.1132);
MVP
0.25
MPC
0.087
ClinPred
0.67
D
GERP RS
2.3
Varity_R
0.46
gMVP
0.13

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: rs774069745; hg19: chr17-39296534; API