rs532037891

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001378452.1(ITPR1):​c.361A>G​(p.Ile121Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000656 in 152,326 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I121F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

ITPR1
NM_001378452.1 missense

Scores

2
6
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.46

Publications

0 publications found
Variant links:
Genes affected
ITPR1 (HGNC:6180): (inositol 1,4,5-trisphosphate receptor type 1) This gene encodes an intracellular receptor for inositol 1,4,5-trisphosphate. Upon stimulation by inositol 1,4,5-trisphosphate, this receptor mediates calcium release from the endoplasmic reticulum. Mutations in this gene cause spinocerebellar ataxia type 15, a disease associated with an heterogeneous group of cerebellar disorders. Multiple transcript variants have been identified for this gene. [provided by RefSeq, Nov 2009]
ITPR1 Gene-Disease associations (from GenCC):
  • aniridia-cerebellar ataxia-intellectual disability syndrome
    Inheritance: AD, AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, G2P, Genomics England PanelApp, PanelApp Australia, Labcorp Genetics (formerly Invitae), Orphanet, ClinGen
  • spinocerebellar ataxia type 29
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, ClinGen, Orphanet
  • spinocerebellar ataxia type 15/16
    Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.25599712).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ITPR1NM_001378452.1 linkc.361A>G p.Ile121Val missense_variant Exon 6 of 62 ENST00000649015.2 NP_001365381.1
ITPR1NM_001168272.2 linkc.361A>G p.Ile121Val missense_variant Exon 6 of 61 NP_001161744.1 Q14643-2
ITPR1NM_001099952.4 linkc.361A>G p.Ile121Val missense_variant Exon 6 of 59 NP_001093422.2 Q14643-3B4DER3Q59H91
ITPR1NM_002222.7 linkc.361A>G p.Ile121Val missense_variant Exon 6 of 58 NP_002213.5 Q14643-4B4DER3B4DGH1Q59H91

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ITPR1ENST00000649015.2 linkc.361A>G p.Ile121Val missense_variant Exon 6 of 62 NM_001378452.1 ENSP00000497605.1 Q14643-1
ITPR1ENST00000354582.12 linkc.361A>G p.Ile121Val missense_variant Exon 6 of 62 5 ENSP00000346595.8 A0A3F2YNW8
ITPR1ENST00000648266.1 linkc.361A>G p.Ile121Val missense_variant Exon 6 of 62 ENSP00000498014.1 A0A3B3IU04
ITPR1ENST00000650294.1 linkc.361A>G p.Ile121Val missense_variant Exon 6 of 61 ENSP00000498056.1 A0A3B3ITU8
ITPR1ENST00000443694.5 linkc.361A>G p.Ile121Val missense_variant Exon 6 of 61 1 ENSP00000401671.2 Q14643-2
ITPR1ENST00000648309.1 linkc.361A>G p.Ile121Val missense_variant Exon 4 of 59 ENSP00000497026.1 Q14643-5
ITPR1ENST00000357086.10 linkc.361A>G p.Ile121Val missense_variant Exon 6 of 59 1 ENSP00000349597.4 Q14643-3
ITPR1ENST00000456211.8 linkc.361A>G p.Ile121Val missense_variant Exon 6 of 58 1 ENSP00000397885.2 Q14643-4

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152208
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00
GnomAD2 exomes
AF:
0.00000512
AC:
1
AN:
195454
AF XY:
0.00000962
show subpopulations
Gnomad AFR exome
AF:
0.0000886
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
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
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1424284
Hom.:
0
Cov.:
28
AF XY:
0.00
AC XY:
0
AN XY:
704990
African (AFR)
AF:
0.00
AC:
0
AN:
32610
American (AMR)
AF:
0.00
AC:
0
AN:
39188
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25474
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38070
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80756
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51350
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5726
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1091894
Other (OTH)
AF:
0.00
AC:
0
AN:
59216
GnomAD4 genome
AF:
0.00000656
AC:
1
AN:
152326
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74484
show subpopulations
African (AFR)
AF:
0.0000240
AC:
1
AN:
41582
American (AMR)
AF:
0.00
AC:
0
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68018
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
ExAC
AF:
0.00000836
AC:
1

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Jul 29, 2024
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Uncertain
0.049
T
BayesDel_noAF
Benign
-0.17
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.66
.;.;.;.;.;.;.;.;D;.;.
Eigen
Benign
0.033
Eigen_PC
Benign
0.22
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.97
D;D;D;D;D;D;D;D;D;D;.
M_CAP
Benign
0.024
T
MetaRNN
Benign
0.26
T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Uncertain
0.29
D
MutationAssessor
Benign
1.2
L;L;.;.;L;.;.;.;L;L;L
PhyloP100
7.5
PrimateAI
Pathogenic
0.90
D
PROVEAN
Benign
-0.24
N;N;.;N;N;.;N;.;.;.;N
REVEL
Uncertain
0.39
Sift
Benign
0.50
T;T;.;T;T;.;T;.;.;.;T
Sift4G
Benign
0.59
T;T;.;.;T;.;T;.;.;.;T
Polyphen
0.013, 0.10
.;.;.;.;.;.;B;.;B;.;.
Vest4
0.71
MutPred
0.60
Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);
MVP
0.55
MPC
1.4
ClinPred
0.36
T
GERP RS
5.3
Varity_R
0.11
gMVP
0.52
Mutation Taster
=63/37
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs532037891; hg19: chr3-4681149; API