21-30491780-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_181609.4(KRTAP19-3):​c.178G>A​(p.Gly60Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000706 in 1,614,034 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000070 ( 0 hom. )

Consequence

KRTAP19-3
NM_181609.4 missense

Scores

1
1
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0820
Variant links:
Genes affected
KRTAP19-3 (HGNC:18938): (keratin associated protein 19-3) 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 Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.016915172).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KRTAP19-3NM_181609.4 linkuse as main transcriptc.178G>A p.Gly60Arg missense_variant 1/1 ENST00000334063.6 NP_853640.1 Q7Z4W3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KRTAP19-3ENST00000334063.6 linkuse as main transcriptc.178G>A p.Gly60Arg missense_variant 1/16 NM_181609.4 ENSP00000386376.2 Q7Z4W3

Frequencies

GnomAD3 genomes
AF:
0.0000789
AC:
12
AN:
152052
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:
0.000771
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000143
AC:
36
AN:
251488
Hom.:
0
AF XY:
0.000103
AC XY:
14
AN XY:
135918
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00130
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000698
AC:
102
AN:
1461864
Hom.:
0
Cov.:
31
AF XY:
0.0000646
AC XY:
47
AN XY:
727236
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000932
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000522
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000789
AC:
12
AN:
152170
Hom.:
0
Cov.:
32
AF XY:
0.0000807
AC XY:
6
AN XY:
74394
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000773
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000899
Hom.:
0
Bravo
AF:
0.0000982
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000165
AC:
20
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 GeneticsMay 31, 2023The c.178G>A (p.G60R) alteration is located in exon 1 (coding exon 1) of the KRTAP19-3 gene. This alteration results from a G to A substitution at nucleotide position 178, causing the glycine (G) at amino acid position 60 to be replaced by an arginine (R). 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
0.17
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
12
DANN
Benign
0.59
DEOGEN2
Benign
0.12
T
Eigen
Benign
-0.69
Eigen_PC
Benign
-0.86
FATHMM_MKL
Benign
0.014
N
LIST_S2
Benign
0.34
T
M_CAP
Benign
0.0035
T
MetaRNN
Benign
0.017
T
MetaSVM
Benign
-1.1
T
PROVEAN
Benign
0.67
N
REVEL
Benign
0.094
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.012
D
Polyphen
0.76
P
Vest4
0.26
MutPred
0.22
Gain of methylation at G60 (P = 0.0079);
MVP
0.22
MPC
0.043
ClinPred
0.052
T
GERP RS
-0.36
Varity_R
0.14
gMVP
0.056

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: rs145653137; hg19: chr21-31864098; API