11-9409928-G-A

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBP7BS2

The NM_006391.3(IPO7):​c.321G>A​(p.Arg107Arg) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000264 in 1,510,748 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00027 ( 0 hom. )

Consequence

IPO7
NM_006391.3 splice_region, synonymous

Scores

2
Splicing: ADA: 0.02936
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.88
Variant links:
Genes affected
IPO7 (HGNC:9852): (importin 7) 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. Similar to importin-beta, this protein prevents the activation of Ran's GTPase by RanGAP1 and inhibits nucleotide exchange on RanGTP, and also binds directly to nuclear pore complexes where it competes for binding sites with importin-beta and transportin. This protein has a Ran-dependent transport cycle and it can cross the nuclear envelope rapidly and in both directions. At least four importin beta-like transport receptors, namely importin beta itself, transportin, RanBP5 and RanBP7, directly bind and import ribosomal proteins. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.27).
BP7
Synonymous conserved (PhyloP=1.88 with no splicing effect.
BS2
High AC in GnomAd4 at 31 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IPO7NM_006391.3 linkuse as main transcriptc.321G>A p.Arg107Arg splice_region_variant, synonymous_variant 4/25 ENST00000379719.8 NP_006382.1 O95373B3KNG9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IPO7ENST00000379719.8 linkuse as main transcriptc.321G>A p.Arg107Arg splice_region_variant, synonymous_variant 4/251 NM_006391.3 ENSP00000369042.3 O95373
IPO7ENST00000527431.1 linkuse as main transcriptc.135G>A p.Arg45Arg splice_region_variant, synonymous_variant 3/44 ENSP00000435235.1 E9PLB2
IPO7ENST00000533233.1 linkuse as main transcriptn.*167G>A splice_region_variant, non_coding_transcript_exon_variant 4/44 ENSP00000433313.1 E9PLJ0
IPO7ENST00000533233.1 linkuse as main transcriptn.*167G>A 3_prime_UTR_variant 4/44 ENSP00000433313.1 E9PLJ0

Frequencies

GnomAD3 genomes
AF:
0.000204
AC:
31
AN:
151690
Hom.:
0
Cov.:
31
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:
0.000207
Gnomad FIN
AF:
0.000383
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000368
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.000253
AC:
47
AN:
186102
Hom.:
0
AF XY:
0.000273
AC XY:
28
AN XY:
102510
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000139
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000450
Gnomad NFE exome
AF:
0.000392
Gnomad OTH exome
AF:
0.000252
GnomAD4 exome
AF:
0.000271
AC:
368
AN:
1359058
Hom.:
0
Cov.:
31
AF XY:
0.000263
AC XY:
177
AN XY:
672388
show subpopulations
Gnomad4 AFR exome
AF:
0.0000705
Gnomad4 AMR exome
AF:
0.0000728
Gnomad4 ASJ exome
AF:
0.0000441
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.000528
Gnomad4 NFE exome
AF:
0.000307
Gnomad4 OTH exome
AF:
0.000144
GnomAD4 genome
AF:
0.000204
AC:
31
AN:
151690
Hom.:
0
Cov.:
31
AF XY:
0.0000945
AC XY:
7
AN XY:
74050
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:
0.000207
Gnomad4 FIN
AF:
0.000383
Gnomad4 NFE
AF:
0.000368
Gnomad4 OTH
AF:
0.000479
Alfa
AF:
0.000412
Hom.:
0
Bravo
AF:
0.000178

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsNov 26, 2024This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.27
CADD
Benign
16
DANN
Benign
0.82
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.029
dbscSNV1_RF
Benign
0.22
SpliceAI score (max)
0.030
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: rs144766309; hg19: chr11-9431475; API