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GeneBe

2-190370965-G-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001128928.2(INPP1):c.763G>T(p.Ala255Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000229 in 1,614,062 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

INPP1
NM_001128928.2 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.185
Variant links:
Genes affected
INPP1 (HGNC:6071): (inositol polyphosphate-1-phosphatase) This gene encodes the enzyme inositol polyphosphate-1-phosphatase, one of the enzymes involved in phosphatidylinositol signaling pathways. This enzyme removes the phosphate group at position 1 of the inositol ring from the polyphosphates inositol 1,4-bisphosphate and inositol 1,3,4-trisphophosphate. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.039245576).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
INPP1NM_001128928.2 linkuse as main transcriptc.763G>T p.Ala255Ser missense_variant 7/7 ENST00000392329.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
INPP1ENST00000392329.7 linkuse as main transcriptc.763G>T p.Ala255Ser missense_variant 7/75 NM_001128928.2 P1
INPP1ENST00000322522.8 linkuse as main transcriptc.763G>T p.Ala255Ser missense_variant 6/61 P1
INPP1ENST00000470892.1 linkuse as main transcriptn.756G>T non_coding_transcript_exon_variant 2/22

Frequencies

GnomAD3 genomes
AF:
0.000164
AC:
25
AN:
152172
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00144
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:
0.00
Gnomad OTH
AF:
0.00143
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251466
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135910
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
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:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.00000821
AC:
12
AN:
1461890
Hom.:
0
Cov.:
30
AF XY:
0.00000550
AC XY:
4
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000224
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:
0.00
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.000164
AC:
25
AN:
152172
Hom.:
0
Cov.:
33
AF XY:
0.000161
AC XY:
12
AN XY:
74326
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00144
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00143
Bravo
AF:
0.000283
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 14, 2023The c.763G>T (p.A255S) alteration is located in exon 7 (coding exon 5) of the INPP1 gene. This alteration results from a G to T substitution at nucleotide position 763, causing the alanine (A) at amino acid position 255 to be replaced by a serine (S). 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
0.070
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.71
Cadd
Benign
1.5
Dann
Benign
0.36
DEOGEN2
Benign
0.026
T;T
Eigen
Benign
-1.0
Eigen_PC
Benign
-1.0
FATHMM_MKL
Benign
0.23
N
LIST_S2
Benign
0.41
T;.
M_CAP
Benign
0.0061
T
MetaRNN
Benign
0.039
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.34
N;N
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.20
T
PROVEAN
Benign
0.090
N;N
REVEL
Benign
0.018
Sift
Benign
0.61
T;T
Sift4G
Benign
0.74
T;T
Polyphen
0.021
B;B
Vest4
0.061
MutPred
0.38
Gain of glycosylation at A255 (P = 0.0188);Gain of glycosylation at A255 (P = 0.0188);
MVP
0.22
MPC
0.23
ClinPred
0.011
T
GERP RS
0.94
Varity_R
0.040
gMVP
0.26

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.

Other links and lift over

dbSNP: rs774250819; hg19: chr2-191235691; API