rs2230376

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP7BA1

The NM_002223.4(ITPR2):​c.4482C>T​(p.Pro1494Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.301 in 1,608,224 control chromosomes in the GnomAD database, including 76,962 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.25 ( 5419 hom., cov: 32)
Exomes 𝑓: 0.31 ( 71543 hom. )

Consequence

ITPR2
NM_002223.4 synonymous

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -3.82
Variant links:
Genes affected
ITPR2 (HGNC:6181): (inositol 1,4,5-trisphosphate receptor type 2) The protein encoded by this gene belongs to the inositol 1,4,5-triphosphate receptor family, whose members are second messenger intracellular calcium release channels. These proteins mediate a rise in cytoplasmic calcium in response to receptor activated production of inositol triphosphate. Inositol triphosphate receptor-mediated signaling is involved in many processes including cell migration, cell division, smooth muscle contraction, and neuronal signaling. This protein is a type 2 receptor that consists of a cytoplasmic amino-terminus that binds inositol triphosphate, six membrane-spanning helices that contribute to the ion pore, and a short cytoplasmic carboxy-terminus. A mutation in this gene has been associated with anhidrosis, suggesting that intracellular calcium release mediated by this protein is required for eccrine sweat production. [provided by RefSeq, Apr 2015]

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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=-0.85).
BP7
Synonymous conserved (PhyloP=-3.82 with no splicing effect.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.321 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ITPR2NM_002223.4 linkuse as main transcriptc.4482C>T p.Pro1494Pro synonymous_variant 33/57 ENST00000381340.8 NP_002214.2 Q14571-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ITPR2ENST00000381340.8 linkuse as main transcriptc.4482C>T p.Pro1494Pro synonymous_variant 33/571 NM_002223.4 ENSP00000370744.3 Q14571-1

Frequencies

GnomAD3 genomes
AF:
0.252
AC:
38288
AN:
151976
Hom.:
5417
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.127
Gnomad AMI
AF:
0.350
Gnomad AMR
AF:
0.250
Gnomad ASJ
AF:
0.232
Gnomad EAS
AF:
0.0830
Gnomad SAS
AF:
0.258
Gnomad FIN
AF:
0.353
Gnomad MID
AF:
0.225
Gnomad NFE
AF:
0.325
Gnomad OTH
AF:
0.266
GnomAD3 exomes
AF:
0.269
AC:
66620
AN:
247824
Hom.:
9959
AF XY:
0.274
AC XY:
36868
AN XY:
134438
show subpopulations
Gnomad AFR exome
AF:
0.121
Gnomad AMR exome
AF:
0.203
Gnomad ASJ exome
AF:
0.243
Gnomad EAS exome
AF:
0.0891
Gnomad SAS exome
AF:
0.248
Gnomad FIN exome
AF:
0.360
Gnomad NFE exome
AF:
0.327
Gnomad OTH exome
AF:
0.295
GnomAD4 exome
AF:
0.306
AC:
446290
AN:
1456130
Hom.:
71543
Cov.:
30
AF XY:
0.305
AC XY:
221174
AN XY:
724526
show subpopulations
Gnomad4 AFR exome
AF:
0.118
Gnomad4 AMR exome
AF:
0.213
Gnomad4 ASJ exome
AF:
0.243
Gnomad4 EAS exome
AF:
0.0783
Gnomad4 SAS exome
AF:
0.247
Gnomad4 FIN exome
AF:
0.355
Gnomad4 NFE exome
AF:
0.329
Gnomad4 OTH exome
AF:
0.292
GnomAD4 genome
AF:
0.252
AC:
38311
AN:
152094
Hom.:
5419
Cov.:
32
AF XY:
0.252
AC XY:
18712
AN XY:
74330
show subpopulations
Gnomad4 AFR
AF:
0.127
Gnomad4 AMR
AF:
0.250
Gnomad4 ASJ
AF:
0.232
Gnomad4 EAS
AF:
0.0830
Gnomad4 SAS
AF:
0.259
Gnomad4 FIN
AF:
0.353
Gnomad4 NFE
AF:
0.325
Gnomad4 OTH
AF:
0.267
Alfa
AF:
0.307
Hom.:
16069
Bravo
AF:
0.239
Asia WGS
AF:
0.207
AC:
721
AN:
3476
EpiCase
AF:
0.321
EpiControl
AF:
0.317

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.85
CADD
Benign
0.14
DANN
Benign
0.32

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

LitVar

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

Other links and lift over

dbSNP: rs2230376; hg19: chr12-26732987; COSMIC: COSV67270211; API