2-190360253-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001128928.2(INPP1):c.151A>T(p.Thr51Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: INPP1 NM_001128928.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.43

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.918

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
INPP1	NM_001128928.2	c.151A>T	p.Thr51Ser	missense_variant	3/7	ENST00000392329.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
INPP1	ENST00000392329.7	c.151A>T	p.Thr51Ser	missense_variant	3/7	5	NM_001128928.2	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 16, 2024

The c.151A>T (p.T51S) alteration is located in exon 3 (coding exon 1) of the INPP1 gene. This alteration results from a A to T substitution at nucleotide position 151, causing the threonine (T) at amino acid position 51 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	Pathogenic	0.94
BayesDel_addAF	Pathogenic	0.24	D
BayesDel_noAF	Uncertain	0.11
Cadd	Pathogenic	27
Dann	Uncertain	1.0
DEOGEN2	Benign	0.33	T;T;.;.;T;.;.;T;T
Eigen	Pathogenic	0.80
Eigen_PC	Pathogenic	0.78
FATHMM_MKL	Uncertain	0.82	D
LIST_S2	Benign	0.82	T;.;D;D;D;D;D;D;D
M_CAP	Benign	0.012	T
MetaRNN	Pathogenic	0.92	D;D;D;D;D;D;D;D;D
MetaSVM	Benign	-0.62	T
MutationAssessor	Uncertain	2.7	M;M;.;.;.;.;.;.;.
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.61	T
PROVEAN	Uncertain	-3.5	D;D;D;D;D;D;D;D;D
REVEL	Uncertain	0.49
Sift	Pathogenic	0.0	D;D;D;D;D;D;D;D;D
Sift4G	Pathogenic	0.0	D;D;D;D;D;D;D;D;D
Polyphen		1.0	D;D;.;.;.;.;.;.;.
Vest4		0.82
MutPred		0.84		Gain of disorder (P = 0.0509);Gain of disorder (P = 0.0509);Gain of disorder (P = 0.0509);Gain of disorder (P = 0.0509);Gain of disorder (P = 0.0509);Gain of disorder (P = 0.0509);Gain of disorder (P = 0.0509);Gain of disorder (P = 0.0509);Gain of disorder (P = 0.0509);
MVP		0.75
MPC		0.83
ClinPred		0.99	D
GERP RS		5.9
Varity_R		0.70
gMVP		0.69

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-191224979;