rs549363319

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS1

The NM_001378452.1(ITPR1):​c.780G>A​(p.Gln260Gln) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,613,380 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

ITPR1
NM_001378452.1 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 3.46

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: Benign. The variant received -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.49).
BP6
Variant 3-4645653-G-A is Benign according to our data. Variant chr3-4645653-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 447602.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=3.46 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0000657 (10/152284) while in subpopulation AFR AF = 0.000217 (9/41556). AF 95% confidence interval is 0.000112. There are 0 homozygotes in GnomAd4. There are 5 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ITPR1NM_001378452.1 linkc.780G>A p.Gln260Gln synonymous_variant Exon 10 of 62 ENST00000649015.2 NP_001365381.1
ITPR1NM_001168272.2 linkc.780G>A p.Gln260Gln synonymous_variant Exon 10 of 61 NP_001161744.1
ITPR1NM_001099952.4 linkc.780G>A p.Gln260Gln synonymous_variant Exon 10 of 59 NP_001093422.2
ITPR1NM_002222.7 linkc.780G>A p.Gln260Gln synonymous_variant Exon 10 of 58 NP_002213.5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ITPR1ENST00000649015.2 linkc.780G>A p.Gln260Gln synonymous_variant Exon 10 of 62 NM_001378452.1 ENSP00000497605.1
ITPR1ENST00000354582.12 linkc.780G>A p.Gln260Gln synonymous_variant Exon 10 of 62 5 ENSP00000346595.8
ITPR1ENST00000648266.1 linkc.780G>A p.Gln260Gln synonymous_variant Exon 10 of 62 ENSP00000498014.1
ITPR1ENST00000650294.1 linkc.780G>A p.Gln260Gln synonymous_variant Exon 10 of 61 ENSP00000498056.1
ITPR1ENST00000443694.5 linkc.780G>A p.Gln260Gln synonymous_variant Exon 10 of 61 1 ENSP00000401671.2
ITPR1ENST00000648309.1 linkc.780G>A p.Gln260Gln synonymous_variant Exon 8 of 59 ENSP00000497026.1
ITPR1ENST00000357086.10 linkc.780G>A p.Gln260Gln synonymous_variant Exon 10 of 59 1 ENSP00000349597.4
ITPR1ENST00000456211.8 linkc.780G>A p.Gln260Gln synonymous_variant Exon 10 of 58 1 ENSP00000397885.2

Frequencies

GnomAD3 genomes
AF:
0.0000723
AC:
11
AN:
152166
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000161
AC:
4
AN:
248096
AF XY:
0.00000743
show subpopulations
Gnomad AFR exome
AF:
0.000130
Gnomad AMR exome
AF:
0.0000291
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:
0.000166
GnomAD4 exome
AF:
0.00000616
AC:
9
AN:
1461096
Hom.:
0
Cov.:
32
AF XY:
0.00000688
AC XY:
5
AN XY:
726792
show subpopulations
African (AFR)
AF:
0.000179
AC:
6
AN:
33474
American (AMR)
AF:
0.0000224
AC:
1
AN:
44674
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26122
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39664
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86098
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53374
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111578
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60344
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152284
Hom.:
0
Cov.:
32
AF XY:
0.0000672
AC XY:
5
AN XY:
74452
show subpopulations
African (AFR)
AF:
0.000217
AC:
9
AN:
41556
American (AMR)
AF:
0.0000654
AC:
1
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10598
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.452
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000987
Hom.:
0
Bravo
AF:
0.0000567

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Dec 15, 2020
Athena Diagnostics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
May 20, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.49
CADD
Benign
8.0
DANN
Benign
0.52
PhyloP100
3.5

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

Other links and lift over

dbSNP: rs549363319; hg19: chr3-4687337; API