21-30372122-G-A

Variant summary

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

The NM_181621.4(KRTAP13-2):​c.92C>T​(p.Pro31Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000203 in 1,614,166 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

KRTAP13-2
NM_181621.4 missense

Scores

2
4
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.41
Variant links:
Genes affected
KRTAP13-2 (HGNC:18923): (keratin associated protein 13-2) 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=0.15120658).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP13-2NM_181621.4 linkuse as main transcriptc.92C>T p.Pro31Leu missense_variant 1/1 ENST00000399889.4 NP_853652.1 Q52LG2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRTAP13-2ENST00000399889.4 linkuse as main transcriptc.92C>T p.Pro31Leu missense_variant 1/16 NM_181621.4 ENSP00000382777.2 Q52LG2

Frequencies

GnomAD3 genomes
AF:
0.000230
AC:
35
AN:
152162
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000434
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.000221
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000227
AC:
57
AN:
251234
Hom.:
0
AF XY:
0.000236
AC XY:
32
AN XY:
135760
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.0000289
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:
0.000467
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000200
AC:
293
AN:
1461886
Hom.:
0
Cov.:
33
AF XY:
0.000199
AC XY:
145
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.000299
Gnomad4 AMR exome
AF:
0.0000224
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:
0.000247
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.000230
AC:
35
AN:
152280
Hom.:
0
Cov.:
32
AF XY:
0.000242
AC XY:
18
AN XY:
74464
show subpopulations
Gnomad4 AFR
AF:
0.000433
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000221
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000256
Hom.:
0
Bravo
AF:
0.000215
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000272
AC:
33
EpiCase
AF:
0.000273
EpiControl
AF:
0.000237

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 GeneticsFeb 16, 2023The c.92C>T (p.P31L) alteration is located in exon 1 (coding exon 1) of the KRTAP13-2 gene. This alteration results from a C to T substitution at nucleotide position 92, causing the proline (P) at amino acid position 31 to be replaced by a leucine (L). 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
0.18
BayesDel_addAF
Benign
-0.37
T
BayesDel_noAF
Benign
-0.44
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.041
T
Eigen
Uncertain
0.20
Eigen_PC
Benign
-0.013
FATHMM_MKL
Benign
0.14
N
LIST_S2
Benign
0.82
T
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.15
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Pathogenic
3.6
H
PrimateAI
Benign
0.29
T
PROVEAN
Pathogenic
-9.8
D
REVEL
Benign
0.12
Sift
Uncertain
0.016
D
Sift4G
Uncertain
0.041
D
Polyphen
1.0
D
Vest4
0.26
MVP
0.26
MPC
0.18
ClinPred
0.39
T
GERP RS
3.8
Varity_R
0.35
gMVP
0.13

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: rs117771679; hg19: chr21-31744440; API