Genetic Variant ITPRID2:p.Thr442Lys (chr2-181902378-C-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001130445.3(ITPRID2):c.1325C>A(p.Thr442Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,546 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: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

ITPRID2
NM_001130445.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.43

Publications

0 publications found

Variant links:

Genes affected

ITPRID2 (HGNC:11319): (ITPR interacting domain containing 2) Enables actin filament binding activity. Located in cytosol; nucleoplasm; and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ITPRID2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06749171).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ITPRID2	NM_001130445.3 link	c.1325C>A	p.Thr442Lys	missense_variant	Exon 8 of 18	ENST00000431877.7	NP_001123917.1	P28290-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ITPRID2	ENST00000431877.7 link	c.1325C>A	p.Thr442Lys	missense_variant	Exon 8 of 18	1	NM_001130445.3	ENSP00000388731.2		P28290-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000400

AC:

AN:

249932

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.0000994

Gnomad EAS 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:

0.00000205

AC:

AN:

1461546

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727068

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33454

American (AMR)

AF:

0.00

AC:

AN:

44686

Ashkenazi Jewish (ASJ)

AF:

0.000115

AC:

AN:

26106

East Asian (EAS)

AF:

0.00

AC:

AN:

39684

South Asian (SAS)

AF:

0.00

AC:

AN:

86208

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53402

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111858

Other (OTH)

AF:

0.00

AC:

AN:

60382

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.442

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 01, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1325C>A (p.T442K) alteration is located in exon 8 (coding exon 8) of the SSFA2 gene. This alteration results from a C to A substitution at nucleotide position 1325, causing the threonine (T) at amino acid position 442 to be replaced by a lysine (K). 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

0.12

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.45

CADD

Benign

(source)

DANN

Benign

0.94

DEOGEN2

Benign

0.043

T;.;T

Eigen

Benign

-0.51

Eigen_PC

Benign

-0.49

FATHMM_MKL

Benign

0.68

LIST_S2

Benign

0.72

T;T;T

M_CAP

Benign

0.019

MetaRNN

Benign

0.067

T;T;T

MetaSVM

Benign

-1.1

PhyloP100

3.4

PrimateAI

Benign

0.28

PROVEAN

Benign

-1.1

N;N;N

REVEL

Benign

0.064

Sift

Uncertain

0.0020

D;D;D

Sift4G

Benign

0.11

T;T;T

Polyphen

0.096

B;B;B

Vest4

0.14

MutPred

0.18

Gain of ubiquitination at T442 (P = 0.0016);Gain of ubiquitination at T442 (P = 0.0016);Gain of ubiquitination at T442 (P = 0.0016);

MVP

0.34

MPC

0.043

ClinPred

0.36

GERP RS

3.8

Varity_R

0.13

gMVP

0.39

Mutation Taster

=82/18

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over