chr3-4782678-C-T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBP7

The NM_001378452.1(ITPR1):​c.6447C>T​(p.Asn2149=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000786 in 1,603,232 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000054 ( 1 hom. )

Consequence

ITPR1
NM_001378452.1 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -2.01
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 Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.68).
BP6
Variant 3-4782678-C-T is Benign according to our data. Variant chr3-4782678-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 447596.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-2.01 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ITPR1NM_001378452.1 linkuse as main transcriptc.6447C>T p.Asn2149= synonymous_variant 50/62 ENST00000649015.2 NP_001365381.1
ITPR1NM_001168272.2 linkuse as main transcriptc.6402C>T p.Asn2134= synonymous_variant 49/61 NP_001161744.1
ITPR1NM_001099952.4 linkuse as main transcriptc.6303C>T p.Asn2101= synonymous_variant 47/59 NP_001093422.2
ITPR1NM_002222.7 linkuse as main transcriptc.6258C>T p.Asn2086= synonymous_variant 46/58 NP_002213.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ITPR1ENST00000649015.2 linkuse as main transcriptc.6447C>T p.Asn2149= synonymous_variant 50/62 NM_001378452.1 ENSP00000497605 Q14643-1

Frequencies

GnomAD3 genomes
AF:
0.000316
AC:
48
AN:
152138
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00104
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.0000294
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.0000910
AC:
22
AN:
241770
Hom.:
0
AF XY:
0.0000914
AC XY:
12
AN XY:
131342
show subpopulations
Gnomad AFR exome
AF:
0.000933
Gnomad AMR exome
AF:
0.000153
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000588
Gnomad SAS exome
AF:
0.0000339
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000906
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000538
AC:
78
AN:
1450976
Hom.:
1
Cov.:
30
AF XY:
0.0000485
AC XY:
35
AN XY:
721506
show subpopulations
Gnomad4 AFR exome
AF:
0.00121
Gnomad4 AMR exome
AF:
0.000160
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000103
Gnomad4 SAS exome
AF:
0.0000237
Gnomad4 FIN exome
AF:
0.0000188
Gnomad4 NFE exome
AF:
0.0000181
Gnomad4 OTH exome
AF:
0.0000667
GnomAD4 genome
AF:
0.000315
AC:
48
AN:
152256
Hom.:
0
Cov.:
32
AF XY:
0.000403
AC XY:
30
AN XY:
74436
show subpopulations
Gnomad4 AFR
AF:
0.00103
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000474
Alfa
AF:
0.000231
Hom.:
0
Bravo
AF:
0.000382

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsFeb 16, 2017- -
ITPR1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesFeb 21, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 30, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.68
CADD
Benign
1.1
DANN
Benign
0.41
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs202123078; hg19: chr3-4824362; API