17-41140141-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_030976.2(KRTAP4-6):​c.347G>A​(p.Arg116His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000128 in 1,449,154 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: 𝑓 0.000053 ( 0 hom., cov: 39)
Exomes 𝑓: 0.00014 ( 0 hom. )

Consequence

KRTAP4-6
NM_030976.2 missense

Scores

1
2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0230
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 Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.04305002).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP4-6NM_030976.2 linkuse as main transcriptc.347G>A p.Arg116His 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.347G>A p.Arg116His missense_variant 1/16 NM_030976.2 ENSP00000328270.5 Q9BYQ5

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
151992
Hom.:
0
Cov.:
39
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000103
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000193
AC:
48
AN:
249134
Hom.:
0
AF XY:
0.000163
AC XY:
22
AN XY:
135330
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000463
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000229
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000187
Gnomad OTH exome
AF:
0.000658
GnomAD4 exome
AF:
0.000136
AC:
177
AN:
1297162
Hom.:
0
Cov.:
202
AF XY:
0.000143
AC XY:
92
AN XY:
643310
show subpopulations
Gnomad4 AFR exome
AF:
0.000106
Gnomad4 AMR exome
AF:
0.000695
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000299
Gnomad4 SAS exome
AF:
0.000271
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000968
Gnomad4 OTH exome
AF:
0.000250
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
151992
Hom.:
0
Cov.:
39
AF XY:
0.0000808
AC XY:
6
AN XY:
74240
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000155
Hom.:
0
ExAC
AF:
0.000181
AC:
22
EpiCase
AF:
0.000328
EpiControl
AF:
0.000475

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 17, 2024The c.347G>A (p.R116H) 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 347, causing the arginine (R) at amino acid position 116 to be replaced by a histidine (H). 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
0.13
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
18
DANN
Benign
0.91
DEOGEN2
Benign
0.083
T
Eigen
Benign
-0.66
Eigen_PC
Benign
-0.81
FATHMM_MKL
Benign
0.042
N
LIST_S2
Benign
0.12
T
M_CAP
Benign
0.0014
T
MetaRNN
Benign
0.043
T
MetaSVM
Benign
-0.95
T
MutationAssessor
Pathogenic
2.9
M
PrimateAI
Benign
0.18
T
PROVEAN
Uncertain
-3.5
D
REVEL
Benign
0.022
Sift
Benign
0.061
T
Sift4G
Uncertain
0.028
D
Vest4
0.080
MVP
0.061
MPC
0.065
ClinPred
0.079
T
GERP RS
0.69
Varity_R
0.094
gMVP
0.11

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs772636827; hg19: chr17-39296393; API