Variant 13-49702390-T-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2

The NM_002267.4(KPNA3):c.1463A>C(p.Asp488Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00016 in 1,430,780 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 0.000099 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

KPNA3
NM_002267.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.97

Variant links:

Genes affected

KPNA3 (HGNC:6396): (karyopherin subunit alpha 3) The transport of molecules between the nucleus and the cytoplasm in eukaryotic cells is mediated by the nuclear pore complex (NPC), which consists of 60-100 proteins. Small molecules (up to 70 kD) can pass through the nuclear pore by nonselective diffusion while larger molecules are transported by an active process. The protein encoded by this gene belongs to the importin alpha family, and is involved in nuclear protein import. [provided by RefSeq, Jan 2009]

KPNA3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), KPNA3. . Gene score misZ 3.3927 (greater than the threshold 3.09). Trascript score misZ 3.1846 (greater than threshold 3.09). GenCC has associacion of gene with spastic paraplegia 88, autosomal dominant.

BP4

Computational evidence support a benign effect (MetaRNN=0.2488432).

BS2

High AC in GnomAd4 at 15 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KPNA3	NM_002267.4 linkuse as main transcript	c.1463A>C	p.Asp488Ala	missense_variant	16/17	ENST00000261667.8	NP_002258.2
KPNA3	XM_017020561.2 linkuse as main transcript	c.1391A>C	p.Asp464Ala	missense_variant	16/17		XP_016876050.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KPNA3	ENST00000261667.8 linkuse as main transcript	c.1463A>C	p.Asp488Ala	missense_variant	16/17	1	NM_002267.4	ENSP00000261667	P1
KPNA3	ENST00000436760.1 linkuse as main transcript	c.224A>C	p.Asp75Ala	missense_variant	2/4	2		ENSP00000393869

Frequencies

GnomAD3 genomes

AF:

0.0000985

AC:

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.000206

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000117

AC:

AN:

238644

Hom.:

AF XY:

0.000147

AC XY:

AN XY:

129210

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000102

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000246

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000167

AC:

214

AN:

1278550

Hom.:

Cov.:

AF XY:

0.000166

AC XY:

107

AN XY:

644636

show subpopulations

Gnomad4 AFR exome

AF:

0.0000341

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:

0.0000376

Gnomad4 NFE exome

AF:

0.000214

Gnomad4 OTH exome

AF:

0.0000923

GnomAD4 genome

AF:

0.0000985

AC:

AN:

152230

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74378

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.000206

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000960

Hom.:

Bravo

AF:

0.000144

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000148

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 27, 2024

The c.1463A>C (p.D488A) alteration is located in exon 16 (coding exon 16) of the KPNA3 gene. This alteration results from a A to C substitution at nucleotide position 1463, causing the aspartic acid (D) at amino acid position 488 to be replaced by an alanine (A). 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

Uncertain

0.37

BayesDel_addAF

Benign

-0.077

BayesDel_noAF

Uncertain

-0.050

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.21

Eigen

Uncertain

0.45

Eigen_PC

Uncertain

0.53

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.86

M_CAP

Benign

0.045

MetaRNN

Benign

0.25

MetaSVM

Benign

-0.47

MutationAssessor

Uncertain

2.1

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.77

PROVEAN

Benign

-1.8

REVEL

Benign

0.28

Sift

Benign

0.035

Sift4G

Uncertain

0.051

Polyphen

0.095

Vest4

0.52

MVP

0.64

MPC

1.5

ClinPred

0.26

GERP RS

5.9

Varity_R

0.21

gMVP

0.59

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.

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