6-33621627-C-T

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_002224.4(ITPR3):​c.25C>T​(p.His9Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.0000547 in 1,607,530 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 (★).

Frequency

Genomes: 𝑓 0.00035 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

ITPR3
NM_002224.4 missense

Scores

5
3
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.17

Publications

0 publications found
Variant links:
Genes affected
ITPR3 (HGNC:6182): (inositol 1,4,5-trisphosphate receptor type 3) This gene encodes a receptor for inositol 1,4,5-trisphosphate, a second messenger that mediates the release of intracellular calcium. The receptor contains a calcium channel at the C-terminus and the ligand-binding site at the N-terminus. Knockout studies in mice suggest that type 2 and type 3 inositol 1,4,5-trisphosphate receptors play a key role in exocrine secretion underlying energy metabolism and growth. [provided by RefSeq, Aug 2010]
ITPR3 Gene-Disease associations (from GenCC):
  • Charcot-Marie-Tooth disease, demyelinating, type 1J
    Inheritance: AD Classification: DEFINITIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.15472895).
BS2
High AC in GnomAd4 at 54 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ITPR3NM_002224.4 linkc.25C>T p.His9Tyr missense_variant Exon 1 of 58 ENST00000605930.3 NP_002215.2 Q14573A6H8K3Q59ES2
ITPR3XM_047418731.1 linkc.25C>T p.His9Tyr missense_variant Exon 2 of 59 XP_047274687.1
ITPR3XM_017010832.2 linkc.25C>T p.His9Tyr missense_variant Exon 2 of 32 XP_016866321.1
ITPR3XM_047418732.1 linkc.-336C>T upstream_gene_variant XP_047274688.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ITPR3ENST00000605930.3 linkc.25C>T p.His9Tyr missense_variant Exon 1 of 58 1 NM_002224.4 ENSP00000475177.1 Q14573
ITPR3ENST00000374316.9 linkc.25C>T p.His9Tyr missense_variant Exon 2 of 59 5 ENSP00000363435.4 Q14573

Frequencies

GnomAD3 genomes
AF:
0.000355
AC:
54
AN:
152224
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00111
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
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:
0.000478
GnomAD2 exomes
AF:
0.0000627
AC:
15
AN:
239338
AF XY:
0.0000540
show subpopulations
Gnomad AFR exome
AF:
0.000533
Gnomad AMR exome
AF:
0.000120
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000928
Gnomad OTH exome
AF:
0.000340
GnomAD4 exome
AF:
0.0000234
AC:
34
AN:
1455188
Hom.:
0
Cov.:
30
AF XY:
0.0000235
AC XY:
17
AN XY:
723256
show subpopulations
African (AFR)
AF:
0.000659
AC:
22
AN:
33408
American (AMR)
AF:
0.0000915
AC:
4
AN:
43692
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25960
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39502
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85096
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52774
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5762
European-Non Finnish (NFE)
AF:
9.02e-7
AC:
1
AN:
1108868
Other (OTH)
AF:
0.0000998
AC:
6
AN:
60126
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.460
Heterozygous variant carriers
0
2
4
6
8
10
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:
0.000354
AC:
54
AN:
152342
Hom.:
0
Cov.:
32
AF XY:
0.000349
AC XY:
26
AN XY:
74498
show subpopulations
African (AFR)
AF:
0.00111
AC:
46
AN:
41596
American (AMR)
AF:
0.000457
AC:
7
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5160
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68026
Other (OTH)
AF:
0.000473
AC:
1
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
3
6
8
11
14
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:
0.000147
Hom.:
0
Bravo
AF:
0.000363
ESP6500AA
AF:
0.000908
AC:
4
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000660
AC:
8

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Jan 08, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.25C>T (p.H9Y) alteration is located in exon 1 (coding exon 1) of the ITPR3 gene. This alteration results from a C to T substitution at nucleotide position 25, causing the histidine (H) at amino acid position 9 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.30
BayesDel_addAF
Benign
-0.011
T
BayesDel_noAF
Uncertain
0.11
CADD
Uncertain
25
DANN
Uncertain
0.98
DEOGEN2
Pathogenic
0.92
D;D
Eigen
Benign
0.056
Eigen_PC
Benign
0.12
FATHMM_MKL
Benign
0.66
D
LIST_S2
Benign
0.81
.;T
M_CAP
Pathogenic
0.38
D
MetaRNN
Benign
0.15
T;T
MetaSVM
Pathogenic
0.91
D
MutationAssessor
Benign
1.8
L;L
PhyloP100
4.2
PrimateAI
Pathogenic
0.92
D
PROVEAN
Uncertain
-4.0
D;.
REVEL
Pathogenic
0.66
Sift
Benign
0.12
T;.
Sift4G
Benign
0.080
T;T
Polyphen
0.24
B;B
Vest4
0.43
MVP
0.95
MPC
1.1
ClinPred
0.061
T
GERP RS
3.7
PromoterAI
-0.035
Neutral
Varity_R
0.56
gMVP
0.65
Mutation Taster
=79/21
polymorphism

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: rs201726270; hg19: chr6-33589404; API