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rs200199463

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 1P and 0B. PP2

The NM_001378452.1(ITPR1):c.2455G>A(p.Asp819Asn) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000937 in 1,600,510 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D819Y) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000076 ( 0 hom. )

Consequence

ITPR1
NM_001378452.1 missense, splice_region

Scores

5
9
4
Splicing: ADA: 0.9574
1
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.91
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PP2
Missense variant where missense usually causes diseases, ITPR1

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ITPR1NM_001378452.1 linkuse as main transcriptc.2455G>A p.Asp819Asn missense_variant, splice_region_variant 21/62 ENST00000649015.2
ITPR1NM_001168272.2 linkuse as main transcriptc.2410G>A p.Asp804Asn missense_variant, splice_region_variant 20/61
ITPR1NM_001099952.4 linkuse as main transcriptc.2455G>A p.Asp819Asn missense_variant, splice_region_variant 21/59
ITPR1NM_002222.7 linkuse as main transcriptc.2410G>A p.Asp804Asn missense_variant, splice_region_variant 20/58

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ITPR1ENST00000649015.2 linkuse as main transcriptc.2455G>A p.Asp819Asn missense_variant, splice_region_variant 21/62 NM_001378452.1 Q14643-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152092
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000291
AC:
7
AN:
240924
Hom.:
0
AF XY:
0.0000383
AC XY:
5
AN XY:
130508
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000167
Gnomad SAS exome
AF:
0.000103
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000172
GnomAD4 exome
AF:
0.00000759
AC:
11
AN:
1448418
Hom.:
0
Cov.:
31
AF XY:
0.00000835
AC XY:
6
AN XY:
718154
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000760
Gnomad4 SAS exome
AF:
0.0000353
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.07e-7
Gnomad4 OTH exome
AF:
0.0000669
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152092
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74294
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.00000593
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000331
AC:
4

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.19
Cadd
Pathogenic
33
Dann
Pathogenic
1.0
Eigen
Pathogenic
0.72
Eigen_PC
Pathogenic
0.69
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.92
D;D;D;D;D;D;D;D;.;D
M_CAP
Uncertain
0.11
D
MetaRNN
Uncertain
0.60
D;D;D;D;D;D;D;D;D;D
MetaSVM
Uncertain
0.74
D
MutationAssessor
Uncertain
2.2
M;.;.;.;.;.;M;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Pathogenic
0.83
D
PROVEAN
Uncertain
-4.2
D;D;D;D;.;.;.;.;D;.
REVEL
Uncertain
0.58
Sift
Uncertain
0.011
D;D;D;D;.;.;.;.;D;.
Sift4G
Uncertain
0.0030
D;D;.;D;.;.;.;.;D;.
Polyphen
1.0
.;.;.;.;.;.;D;.;.;.
Vest4
0.89
MutPred
0.31
Loss of sheet (P = 0.1158);.;Loss of sheet (P = 0.1158);.;Loss of sheet (P = 0.1158);.;Loss of sheet (P = 0.1158);.;.;.;
MVP
0.89
MPC
1.0
ClinPred
0.81
D
GERP RS
5.0
Varity_R
0.45
gMVP
0.82

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.96
dbscSNV1_RF
Benign
0.59
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.

Other links and lift over

dbSNP: rs200199463; hg19: chr3-4715070; COSMIC: COSV56991470; COSMIC: COSV56991470; API