Genetic Variant IPO8:p.Phe1030Tyr (chr12-30630885-A-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_006390.4(IPO8):c.3089T>A(p.Phe1030Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.00000496 in 1,613,626 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

IPO8
NM_006390.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.26

Variant links:

Genes affected

IPO8 (HGNC:9853): (importin 8) The importin-alpha/beta complex and the GTPase Ran mediate nuclear import of proteins with a classical nuclear localization signal. The protein encoded by this gene is a member of a class of approximately 20 potential Ran targets that share a sequence motif related to the Ran-binding site of importin-beta. This protein binds to the nuclear pore complex and, along with RanGTP and RANBP1, inhibits the GAP stimulation of the Ran GTPase. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2010]

IPO8 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IPO8	NM_006390.4 link	c.3089T>A	p.Phe1030Tyr	missense_variant	Exon 25 of 25	ENST00000256079.9	NP_006381.2	O15397-1
IPO8	NM_001190995.2 link	c.2474T>A	p.Phe825Tyr	missense_variant	Exon 21 of 21		NP_001177924.1	O15397-2
IPO8	XM_017018691.3 link	c.3038T>A	p.Phe1013Tyr	missense_variant	Exon 25 of 25		XP_016874180.1
IPO8	XM_017018692.2 link	c.2903T>A	p.Phe968Tyr	missense_variant	Exon 24 of 24		XP_016874181.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IPO8	ENST00000256079.9 link	c.3089T>A	p.Phe1030Tyr	missense_variant	Exon 25 of 25	1	NM_006390.4	ENSP00000256079.4		O15397-1
IPO8	ENST00000544829.5 link	c.2474T>A	p.Phe825Tyr	missense_variant	Exon 21 of 21	2		ENSP00000444520.1		O15397-2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152216

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251160

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135746

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:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1461410

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727022

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:

0.00000630

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74378

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:

0.0000147

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Jun 27, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3089T>A (p.F1030Y) alteration is located in exon 25 (coding exon 25) of the IPO8 gene. This alteration results from a T to A substitution at nucleotide position 3089, causing the phenylalanine (F) at amino acid position 1030 to be replaced by a tyrosine (Y). 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

0.29

BayesDel_addAF

Uncertain

0.040

BayesDel_noAF

Benign

-0.18

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.13

T;.

Eigen

Uncertain

0.66

Eigen_PC

Uncertain

0.63

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.62

T;T

M_CAP

Benign

0.045

MetaRNN

Uncertain

0.48

T;T

MetaSVM

Uncertain

-0.13

MutationAssessor

Uncertain

2.5

M;.

PrimateAI

Uncertain

0.70

PROVEAN

Benign

-2.1

N;N

REVEL

Benign

0.28

Sift

Uncertain

0.010

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;.

Vest4

0.47

MutPred

0.60

Gain of catalytic residue at N1029 (P = 0.0019);.;

MVP

0.66

MPC

1.0

ClinPred

0.96

GERP RS

4.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.25

gMVP

0.54

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