chr7-99178073-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_001145715.3(KPNA7):​c.1318-7G>A variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000932 in 1,551,104 control chromosomes in the GnomAD database, including 18 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0051 ( 10 hom., cov: 30)
Exomes 𝑓: 0.00048 ( 8 hom. )

Consequence

KPNA7
NM_001145715.3 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00007158
2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.0540
Variant links:
Genes affected
KPNA7 (HGNC:21839): (karyopherin subunit alpha 7) 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, but exhibits different nuclear localization signal binding specificity compared to other members of the family. A pseudogene of this gene has been defined on chromosome 5. [provided by RefSeq, Jul 2016]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 7-99178073-C-T is Benign according to our data. Variant chr7-99178073-C-T is described in ClinVar as [Benign]. Clinvar id is 415824.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00509 (775/152242) while in subpopulation AFR AF= 0.0178 (738/41544). AF 95% confidence interval is 0.0167. There are 10 homozygotes in gnomad4. There are 373 alleles in male gnomad4 subpopulation. Median coverage is 30. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 10 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KPNA7NM_001145715.3 linkuse as main transcriptc.1318-7G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000327442.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KPNA7ENST00000327442.7 linkuse as main transcriptc.1318-7G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_001145715.3 P1
KPNA7ENST00000681060.1 linkuse as main transcriptc.1318-7G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant P1

Frequencies

GnomAD3 genomes
AF:
0.00509
AC:
775
AN:
152124
Hom.:
10
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.0178
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00144
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00526
GnomAD3 exomes
AF:
0.00120
AC:
187
AN:
155562
Hom.:
3
AF XY:
0.000994
AC XY:
82
AN XY:
82462
show subpopulations
Gnomad AFR exome
AF:
0.0204
Gnomad AMR exome
AF:
0.000860
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000442
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000333
Gnomad OTH exome
AF:
0.000459
GnomAD4 exome
AF:
0.000479
AC:
670
AN:
1398862
Hom.:
8
Cov.:
32
AF XY:
0.000422
AC XY:
291
AN XY:
689934
show subpopulations
Gnomad4 AFR exome
AF:
0.0171
Gnomad4 AMR exome
AF:
0.000982
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000759
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000927
Gnomad4 OTH exome
AF:
0.00133
GnomAD4 genome
AF:
0.00509
AC:
775
AN:
152242
Hom.:
10
Cov.:
30
AF XY:
0.00501
AC XY:
373
AN XY:
74422
show subpopulations
Gnomad4 AFR
AF:
0.0178
Gnomad4 AMR
AF:
0.00144
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00521
Alfa
AF:
0.00294
Hom.:
4
Bravo
AF:
0.00563
Asia WGS
AF:
0.00144
AC:
5
AN:
3478

ClinVar

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

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJan 29, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
1.9
DANN
Benign
0.38

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000072
dbscSNV1_RF
Benign
0.0
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: rs145351423; hg19: chr7-98775696; API