Variant 21-30642922-G-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_001128077.1(KRTAP20-3):c.34G>A(p.Gly12Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000574 in 1,551,802 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

KRTAP20-3
NM_001128077.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.309

Variant links:

Genes affected

KRTAP20-3 (HGNC:34001): (keratin associated protein 20-3) Predicted to be located in intermediate filament. [provided by Alliance of Genome Resources, Apr 2022]

KRTAP20-3 links:

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=0.11733037).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KRTAP20-3	NM_001128077.1 linkuse as main transcript	c.34G>A	p.Gly12Ser	missense_variant	1/1	ENST00000382826.2	NP_001121549.1	Q3LI60

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KRTAP20-3	ENST00000382826.2 linkuse as main transcript	c.34G>A	p.Gly12Ser	missense_variant	1/1	6	NM_001128077.1	ENSP00000372276.2		Q3LI60

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152038

Hom.:

Cov.:

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000315

AC:

AN:

158548

Hom.:

AF XY:

0.0000479

AC XY:

AN XY:

83552

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:

0.0000810

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000600

AC:

AN:

1399764

Hom.:

Cov.:

AF XY:

0.0000565

AC XY:

AN XY:

690368

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:

0.0000732

Gnomad4 OTH exome

AF:

0.0000860

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152038

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74258

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:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000141

Hom.:

Bravo

AF:

0.0000227

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

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 submitter

clinical testing

Ambry Genetics

Mar 12, 2024

The c.34G>A (p.G12S) alteration is located in exon 1 (coding exon 1) of the KRTAP20-3 gene. This alteration results from a G to A substitution at nucleotide position 34, causing the glycine (G) at amino acid position 12 to be replaced by a serine (S). 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

0.21

BayesDel_addAF

Benign

-0.48

BayesDel_noAF

Benign

-0.75

CADD

Benign

8.5

DANN

Benign

0.43

DEOGEN2

Benign

0.18

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.0071

M_CAP

Benign

0.0019

MetaRNN

Benign

0.12

MetaSVM

Benign

-1.0

MutationTaster

Benign

1.0

PROVEAN

Pathogenic

-6.0

REVEL

Benign

0.049

Sift4G

Pathogenic

0.0

Polyphen

0.58

Vest4

0.16

MutPred

0.28

Gain of catalytic residue at G12 (P = 0.0101);

MVP

0.048

ClinPred

0.22

GERP RS

-0.87

Varity_R

0.27

gMVP

0.41

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.060

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over