17-41059914-C-A

Variant summary

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

The NM_001165252.2(KRTAP2-3):​c.137G>T​(p.Cys46Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000085 in 1,505,434 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 30)
Exomes 𝑓: 0.000091 ( 1 hom. )

Consequence

KRTAP2-3
NM_001165252.2 missense

Scores

2
4
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.48
Variant links:
Genes affected
KRTAP2-3 (HGNC:18906): (keratin associated protein 2-3) 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=0.30726796).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP2-3NM_001165252.2 linkuse as main transcriptc.137G>T p.Cys46Phe missense_variant 1/1 ENST00000391418.3 NP_001158724.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRTAP2-3ENST00000391418.3 linkuse as main transcriptc.137G>T p.Cys46Phe missense_variant 1/1 NM_001165252.2 ENSP00000375237 P1

Frequencies

GnomAD3 genomes
AF:
0.0000331
AC:
5
AN:
151280
Hom.:
0
Cov.:
30
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:
0.0000738
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000594
AC:
5
AN:
84224
Hom.:
0
AF XY:
0.0000922
AC XY:
4
AN XY:
43380
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:
0.000161
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000908
AC:
123
AN:
1354154
Hom.:
1
Cov.:
33
AF XY:
0.000101
AC XY:
67
AN XY:
664288
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000115
Gnomad4 OTH exome
AF:
0.0000177
GnomAD4 genome
AF:
0.0000331
AC:
5
AN:
151280
Hom.:
0
Cov.:
30
AF XY:
0.0000271
AC XY:
2
AN XY:
73840
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:
0.0000738
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000875
Hom.:
0
Bravo
AF:
0.0000340

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 GeneticsNov 07, 2022The c.137G>T (p.C46F) alteration is located in exon 1 (coding exon 1) of the KRTAP2-3 gene. This alteration results from a G to T substitution at nucleotide position 137, causing the cysteine (C) at amino acid position 46 to be replaced by a phenylalanine (F). 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
-0.24
T
BayesDel_noAF
Benign
-0.31
CADD
Uncertain
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.13
T
Eigen
Benign
-0.00048
Eigen_PC
Benign
0.048
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Benign
0.60
T
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.31
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.9
M
MutationTaster
Benign
0.98
D
PrimateAI
Pathogenic
0.82
D
PROVEAN
Pathogenic
-9.9
D
REVEL
Benign
0.18
Sift
Benign
0.063
T
Sift4G
Uncertain
0.010
D
Vest4
0.35
MutPred
0.43
Loss of glycosylation at T45 (P = 0.1309);
MVP
0.38
MPC
1.6
ClinPred
0.66
D
GERP RS
3.6
Varity_R
0.24
gMVP
0.31

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: rs909944156; hg19: chr17-39216166; API