rs185464679

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_001378452.1(ITPR1):c.2107G>A(p.Asp703Asn) variant causes a missense change. The variant allele was found at a frequency of 0.000036 in 1,610,944 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 Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. D703D) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

ITPR1
NM_001378452.1 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:2

Conservation

PhyloP100: 6.44

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: G2P, ClinGen, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics
spinocerebellar ataxia type 29
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, ClinGen, G2P, Labcorp Genetics (formerly Invitae)
spinocerebellar ataxia type 15/16
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)

ITPR1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.032878697).

BP6

Variant 3-4670829-G-A is Benign according to our data. Variant chr3-4670829-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 586042.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.0000525 (8/152308) while in subpopulation AMR AF = 0.000261 (4/15298). AF 95% confidence interval is 0.0000887. There are 0 homozygotes in GnomAd4. There are 4 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001378452.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ITPR1	NM_001378452.1	MANE Select	c.2107G>A	p.Asp703Asn	missense	Exon 20 of 62	NP_001365381.1	Q14643-1
ITPR1	NM_001168272.2		c.2062G>A	p.Asp688Asn	missense	Exon 19 of 61	NP_001161744.1	Q14643-2
ITPR1	NM_001099952.4		c.2107G>A	p.Asp703Asn	missense	Exon 20 of 59	NP_001093422.2	Q14643-3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ITPR1	ENST00000649015.2	MANE Select	c.2107G>A	p.Asp703Asn	missense	Exon 20 of 62	ENSP00000497605.1	Q14643-1
ITPR1	ENST00000354582.12	TSL:5	c.2107G>A	p.Asp703Asn	missense	Exon 20 of 62	ENSP00000346595.8	A0A3F2YNW8
ITPR1	ENST00000648266.1		c.2107G>A	p.Asp703Asn	missense	Exon 20 of 62	ENSP00000498014.1	A0A3B3IU04

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152190

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.0000441

Gnomad OTH

AF:

0.000479

GnomAD2 exomes

AF:

0.0000820

AC:

AN:

243822

AF XY:

0.0000530

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000560

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000905

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000343

AC:

AN:

1458636

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

725236

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33438

American (AMR)

AF:

0.000610

AC:

AN:

44278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26070

East Asian (EAS)

AF:

0.00

AC:

AN:

39600

South Asian (SAS)

AF:

0.00

AC:

AN:

85434

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53246

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

0.0000171

AC:

AN:

1110518

Other (OTH)

AF:

0.0000663

AC:

AN:

60292

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000525

AC:

AN:

152308

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74486

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41582

American (AMR)

AF:

0.000261

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68028

Other (OTH)

AF:

0.000474

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.00

Hom.:

Bravo

AF:

0.0000567

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000120

AC:

ExAC

AF:

0.0000744

AC:

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.28

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.43

Eigen

Benign

-0.073

Eigen_PC

Benign

0.11

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.97

M_CAP

Benign

0.056

MetaRNN

Benign

0.033

MetaSVM

Uncertain

-0.060

MutationAssessor

Benign

1.2

PhyloP100

6.4

PrimateAI

Benign

0.45

PROVEAN

Benign

-0.80

REVEL

Uncertain

0.29

Sift

Benign

0.17

Sift4G

Benign

0.19

Polyphen

0.0010

Vest4

0.36

MVP

0.83

MPC

0.71

ClinPred

0.13

GERP RS

4.6

PromoterAI

0.031

Neutral

(source)

Varity_R

0.21

gMVP

0.63

Mutation Taster

=56/44

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over