21-30496902-G-T

Variant summary

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

The NM_181610.3(KRTAP19-4):​c.209C>A​(p.Thr70Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000435 in 1,610,370 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000067 ( 0 hom., cov: 27)
Exomes 𝑓: 0.000047 ( 0 hom. )

Consequence

KRTAP19-4
NM_181610.3 missense

Scores

1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.703
Variant links:
Genes affected
KRTAP19-4 (HGNC:18939): (keratin associated protein 19-4) 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=0.072703004).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP19-4NM_181610.3 linkuse as main transcriptc.209C>A p.Thr70Lys missense_variant 1/1 ENST00000334058.3 NP_853641.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRTAP19-4ENST00000334058.3 linkuse as main transcriptc.209C>A p.Thr70Lys missense_variant 1/1 NM_181610.3 ENSP00000335567 P1

Frequencies

GnomAD3 genomes
AF:
0.00000673
AC:
1
AN:
148574
Hom.:
0
Cov.:
27
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:
0.0000148
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251474
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135910
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:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000472
AC:
69
AN:
1461796
Hom.:
0
Cov.:
30
AF XY:
0.0000523
AC XY:
38
AN XY:
727214
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:
0.0000612
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.00000673
AC:
1
AN:
148574
Hom.:
0
Cov.:
27
AF XY:
0.00
AC XY:
0
AN XY:
72200
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:
0.0000148
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

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.209C>A (p.T70K) alteration is located in exon 1 (coding exon 1) of the KRTAP19-4 gene. This alteration results from a C to A substitution at nucleotide position 209, causing the threonine (T) at amino acid position 70 to be replaced by a lysine (K). 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
0.11
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.72
CADD
Benign
0.46
DANN
Benign
0.39
DEOGEN2
Benign
0.013
T
Eigen
Benign
-0.89
Eigen_PC
Benign
-0.98
FATHMM_MKL
Benign
0.041
N
LIST_S2
Benign
0.23
T
M_CAP
Benign
0.0028
T
MetaRNN
Benign
0.073
T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.26
T
PROVEAN
Benign
-0.80
N
REVEL
Benign
0.025
Sift
Pathogenic
0.0
D
Sift4G
Benign
0.098
T
Polyphen
0.013
B
Vest4
0.097
MutPred
0.21
Gain of ubiquitination at T70 (P = 0.0121);
MVP
0.11
MPC
0.14
ClinPred
0.068
T
GERP RS
0.62
Varity_R
0.092
gMVP
0.038

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs754492060; hg19: chr21-31869220; API