Genetic Variant ITPRIPL2:p.Leu246Phe (chr16-19115197-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_001034841.4(ITPRIPL2):c.736C>T(p.Leu246Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,455,958 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ITPRIPL2
NM_001034841.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.79

Variant links:

Genes affected

ITPRIPL2 (HGNC:27257): (ITPRIP like 2) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ITPRIPL2 links:

ENSG00000261427 (HGNC:):

ENSG00000261427 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ITPRIPL2	NM_001034841.4 link	c.736C>T	p.Leu246Phe	missense_variant	Exon 1 of 1	ENST00000381440.5	NP_001030013.1	Q3MIP1
ITPRIPL2	NR_028028.2 link	n.718C>T		non_coding_transcript_exon_variant	Exon 2 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ITPRIPL2	ENST00000381440.5 link	c.736C>T	p.Leu246Phe	missense_variant	Exon 1 of 1	6	NM_001034841.4	ENSP00000370849.3	Q3MIP1
ITPRIPL2	ENST00000566735.1 link	n.750C>T		non_coding_transcript_exon_variant	Exon 2 of 2	2
ENSG00000261427	ENST00000564808.6 link	n.418+262C>T		intron_variant	Intron 2 of 5	4
ENSG00000261427	ENST00000568526.1 link	n.211+412C>T		intron_variant	Intron 2 of 4	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000808

AC:

AN:

247374

Hom.:

AF XY:

0.00000745

AC XY:

AN XY:

134256

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000579

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:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1455958

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

724640

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000447

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.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 01, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.736C>T (p.L246F) alteration is located in exon 1 (coding exon 1) of the ITPRIPL2 gene. This alteration results from a C to T substitution at nucleotide position 736, causing the leucine (L) at amino acid position 246 to be replaced by a phenylalanine (F). 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

Uncertain

0.52

BayesDel_addAF

Benign

-0.058

BayesDel_noAF

Benign

-0.15

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.15

Eigen

Uncertain

0.48

Eigen_PC

Uncertain

0.47

FATHMM_MKL

Uncertain

0.90

LIST_S2

Benign

0.74

M_CAP

Benign

0.081

MetaRNN

Uncertain

0.58

MetaSVM

Benign

-0.89

MutationAssessor

Benign

0.90

PrimateAI

Uncertain

0.69

PROVEAN

Uncertain

-3.6

REVEL

Benign

0.25

Sift

Uncertain

0.0070

Sift4G

Uncertain

0.025

Polyphen

1.0

Vest4

0.59

MutPred

0.55

Gain of catalytic residue at L246 (P = 0.0159);

MVP

0.37

ClinPred

0.88

GERP RS

4.8

Varity_R

0.33

gMVP

0.88

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over