17-41059828-G-A

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001165252.2(KRTAP2-3):​c.223C>T​(p.Arg75Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000175 in 1,533,924 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0010 ( 2 hom., cov: 31)
Exomes 𝑓: 0.000082 ( 1 hom. )

Consequence

KRTAP2-3
NM_001165252.2 missense

Scores

3
3
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.640
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 Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.015364289).
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP2-3NM_001165252.2 linkuse as main transcriptc.223C>T p.Arg75Cys 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.223C>T p.Arg75Cys missense_variant 1/1 NM_001165252.2 ENSP00000375237 P1

Frequencies

GnomAD3 genomes
AF:
0.00102
AC:
155
AN:
151568
Hom.:
2
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00276
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00251
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:
0.0000295
Gnomad OTH
AF:
0.000483
GnomAD3 exomes
AF:
0.000245
AC:
32
AN:
130468
Hom.:
0
AF XY:
0.000257
AC XY:
18
AN XY:
69982
show subpopulations
Gnomad AFR exome
AF:
0.00300
Gnomad AMR exome
AF:
0.000454
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:
0.00
Gnomad OTH exome
AF:
0.000251
GnomAD4 exome
AF:
0.0000818
AC:
113
AN:
1382238
Hom.:
1
Cov.:
32
AF XY:
0.0000837
AC XY:
57
AN XY:
681042
show subpopulations
Gnomad4 AFR exome
AF:
0.00283
Gnomad4 AMR exome
AF:
0.000337
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:
9.30e-7
Gnomad4 OTH exome
AF:
0.000191
GnomAD4 genome
AF:
0.00102
AC:
155
AN:
151686
Hom.:
2
Cov.:
31
AF XY:
0.00120
AC XY:
89
AN XY:
74126
show subpopulations
Gnomad4 AFR
AF:
0.00275
Gnomad4 AMR
AF:
0.00251
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000295
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000480
Hom.:
0
Bravo
AF:
0.000922
ExAC
AF:
0.0000644
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 GeneticsMar 06, 2023The c.223C>T (p.R75C) alteration is located in exon 1 (coding exon 1) of the KRTAP2-3 gene. This alteration results from a C to T substitution at nucleotide position 223, causing the arginine (R) at amino acid position 75 to be replaced by a cysteine (C). 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
-0.36
T
BayesDel_noAF
Benign
-0.29
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.086
T
Eigen
Benign
-0.47
Eigen_PC
Benign
-0.34
FATHMM_MKL
Benign
0.49
N
LIST_S2
Benign
0.80
T
M_CAP
Benign
0.078
D
MetaRNN
Benign
0.015
T
MetaSVM
Benign
-0.96
T
MutationAssessor
Pathogenic
3.0
M
MutationTaster
Benign
0.98
D
PrimateAI
Uncertain
0.65
T
PROVEAN
Uncertain
-3.9
D
REVEL
Benign
0.063
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0010
D
Vest4
0.23
MVP
0.27
MPC
2.6
ClinPred
0.14
T
GERP RS
2.3
Varity_R
0.097
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: rs540380028; hg19: chr17-39216080; API