17-41105900-G-A

Variant summary

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

The NM_001146041.1(KRTAP4-9):​c.512G>A​(p.Arg171His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000323 in 1,607,750 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

KRTAP4-9
NM_001146041.1 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.274
Variant links:
Genes affected
KRTAP4-9 (HGNC:18910): (keratin associated protein 4-9) Involved in aging and hair cycle. 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 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.09620693).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP4-9NM_001146041.1 linkuse as main transcriptc.512G>A p.Arg171His missense_variant 1/1 ENST00000391415.2 NP_001139513.1 Q9BYQ8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRTAP4-9ENST00000391415.2 linkuse as main transcriptc.512G>A p.Arg171His missense_variant 1/16 NM_001146041.1 ENSP00000375234.1 Q9BYQ8

Frequencies

GnomAD3 genomes
AF:
0.00000659
AC:
1
AN:
151742
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000291
AC:
6
AN:
206168
Hom.:
0
AF XY:
0.0000449
AC XY:
5
AN XY:
111464
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000667
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000350
AC:
51
AN:
1456008
Hom.:
0
Cov.:
33
AF XY:
0.0000290
AC XY:
21
AN XY:
723748
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000350
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000415
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.00000659
AC:
1
AN:
151742
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74100
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000113
Hom.:
0
Bravo
AF:
0.0000113
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 GeneticsAug 28, 2024The c.512G>A (p.R171H) alteration is located in exon 1 (coding exon 1) of the KRTAP4-9 gene. This alteration results from a G to A substitution at nucleotide position 512, causing the arginine (R) at amino acid position 171 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
0.12
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.59
CADD
Benign
16
DANN
Uncertain
0.98
DEOGEN2
Benign
0.0085
T;.
Eigen
Benign
-0.31
Eigen_PC
Benign
-0.49
FATHMM_MKL
Benign
0.11
N
LIST_S2
Benign
0.036
T;T
M_CAP
Benign
0.0030
T
MetaRNN
Benign
0.096
T;T
MetaSVM
Benign
-0.86
T
MutationAssessor
Uncertain
2.6
M;.
PrimateAI
Benign
0.19
T
PROVEAN
Benign
-2.2
N;.
REVEL
Benign
0.049
Sift
Benign
0.085
T;.
Sift4G
Benign
0.075
T;T
Polyphen
0.93
P;.
Vest4
0.088
MutPred
0.22
Gain of glycosylation at S168 (P = 0.1053);.;
MVP
0.19
MPC
0.22
ClinPred
0.20
T
GERP RS
1.7
Varity_R
0.044
gMVP
0.046

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: rs758122200; hg19: chr17-39262152; COSMIC: COSV66949915; COSMIC: COSV66949915; API