11-72225010-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001567.4(INPPL1):c.26G>A(p.Gly9Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000944 in 1,058,904 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 9.4e-7 (0 hom.)
• Consequence: INPPL1 NM_001567.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.225

Genes affected

INPPL1 (HGNC:6080): (inositol polyphosphate phosphatase like 1) The protein encoded by this gene is an SH2-containing 5'-inositol phosphatase that is involved in the regulation of insulin function. The encoded protein also plays a role in the regulation of epidermal growth factor receptor turnover and actin remodelling. Additionally, this gene supports metastatic growth in breast cancer and is a valuable biomarker for breast cancer. [provided by RefSeq, Jan 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.23053524).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
INPPL1	NM_001567.4	c.26G>A	p.Gly9Asp	missense_variant	1/28	ENST00000298229.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
INPPL1	ENST00000298229.7	c.26G>A	p.Gly9Asp	missense_variant	1/28	1	NM_001567.4	P1
INPPL1	ENST00000540973.1	c.26G>A	p.Gly9Asp	missense_variant	2/2	3
INPPL1	ENST00000543234.1	c.26G>A	p.Gly9Asp	missense_variant	2/2	2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 9.44e-7 AC: 1 AN: 1058904 Hom.: 0 Cov.: 30 AF XY: 0.00000200 AC XY: 1 AN XY: 500126

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.000132

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: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Jun 27, 2022

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with INPPL1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glycine, which is neutral and non-polar, with aspartic acid, which is acidic and polar, at codon 9 of the INPPL1 protein (p.Gly9Asp). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.19
BayesDel_addAF	Uncertain	0.058	T
BayesDel_noAF	Benign	-0.15
Cadd	Benign	19
Dann	Uncertain	0.98
Eigen	Benign	-0.88
Eigen_PC	Benign	-0.93
FATHMM_MKL	Benign	0.061	N
LIST_S2	Benign	0.43	T;.;T
M_CAP	Pathogenic	0.99	D
MetaRNN	Benign	0.23	T;T;T
MetaSVM	Benign	-0.32	T
MutationTaster	Benign	1.0	N;N
PrimateAI	Pathogenic	0.88	D
PROVEAN	Pathogenic	-5.0	D;D;N
REVEL	Benign	0.28
Polyphen		0.0080	.;.;B
Vest4		0.21
MutPred		0.33		Loss of glycosylation at P10 (P = 0.0881);Loss of glycosylation at P10 (P = 0.0881);Loss of glycosylation at P10 (P = 0.0881);
MVP		0.33
MPC		0.29
ClinPred		0.15	T
GERP RS		1.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.2
Varity_R		0.045
gMVP		0.59

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

Other links and lift over

dbSNP: rs1239738293; hg19: chr11-71936054;