chr18-12009876-A-G

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1

The ENST00000269159.8(IMPA2):​c.231-7A>G 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 0.00355 in 1,610,408 control chromosomes in the GnomAD database, including 178 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 0.019 ( 89 hom., cov: 32)
Exomes 𝑓: 0.0019 ( 89 hom. )

Consequence

IMPA2
ENST00000269159.8 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0005307
2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0310
Variant links:
Genes affected
IMPA2 (HGNC:6051): (inositol monophosphatase 2) This locus encodes an inositol monophosphatase. The encoded protein catalyzes the dephosphoylration of inositol monophosphate and plays an important role in phosphatidylinositol signaling. This locus may be associated with susceptibility to bipolar disorder. [provided by RefSeq, Jan 2011]

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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=-0.79).
BP6
Variant 18-12009876-A-G is Benign according to our data. Variant chr18-12009876-A-G is described in ClinVar as [Benign]. Clinvar id is 788910.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0645 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IMPA2NM_014214.3 linkuse as main transcriptc.231-7A>G splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000269159.8 NP_055029.1
IMPA2XM_011525659.4 linkuse as main transcriptc.183-7A>G splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant XP_011523961.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IMPA2ENST00000269159.8 linkuse as main transcriptc.231-7A>G splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_014214.3 ENSP00000269159 P1O14732-1

Frequencies

GnomAD3 genomes
AF:
0.0190
AC:
2892
AN:
152012
Hom.:
89
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0665
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00603
Gnomad ASJ
AF:
0.00173
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0158
Gnomad NFE
AF:
0.000221
Gnomad OTH
AF:
0.0110
GnomAD3 exomes
AF:
0.00458
AC:
1151
AN:
251142
Hom.:
26
AF XY:
0.00333
AC XY:
452
AN XY:
135726
show subpopulations
Gnomad AFR exome
AF:
0.0633
Gnomad AMR exome
AF:
0.00237
Gnomad ASJ exome
AF:
0.00189
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000793
Gnomad OTH exome
AF:
0.00131
GnomAD4 exome
AF:
0.00193
AC:
2809
AN:
1458278
Hom.:
89
Cov.:
30
AF XY:
0.00165
AC XY:
1198
AN XY:
725608
show subpopulations
Gnomad4 AFR exome
AF:
0.0674
Gnomad4 AMR exome
AF:
0.00309
Gnomad4 ASJ exome
AF:
0.00237
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000209
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000559
Gnomad4 OTH exome
AF:
0.00416
GnomAD4 genome
AF:
0.0191
AC:
2904
AN:
152130
Hom.:
89
Cov.:
32
AF XY:
0.0184
AC XY:
1365
AN XY:
74350
show subpopulations
Gnomad4 AFR
AF:
0.0666
Gnomad4 AMR
AF:
0.00602
Gnomad4 ASJ
AF:
0.00173
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000221
Gnomad4 OTH
AF:
0.0109
Alfa
AF:
0.0126
Hom.:
17
Bravo
AF:
0.0211
Asia WGS
AF:
0.00433
AC:
15
AN:
3478
EpiCase
AF:
0.000164
EpiControl
AF:
0.000178

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 testingLabcorp Genetics (formerly Invitae), LabcorpJun 26, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.79
CADD
Benign
2.7
DANN
Benign
0.60
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00053
dbscSNV1_RF
Benign
0.0
SpliceAI score (max)
0.080
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: rs603364; hg19: chr18-12009875; API