NM_019892.6:c.33C>G

Variant names:

• chr9-136439387-G-C
• rs79161998
• NM_019892.6:c.33C>G

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BA1

The NM_019892.6(INPP5E):​c.33C>G​(p.Ser11Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00456 in 1,463,608 control chromosomes in the GnomAD database, including 272 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.023 (168 hom., cov: 33)
  • Exomes 𝑓: 0.0024 (104 hom.)
• Consequence: INPP5E NM_019892.6 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:8
• Conservation: PhyloP100: -3.44

Genes affected

INPP5E (HGNC:21474): (inositol polyphosphate-5-phosphatase E) The protein encoded by this gene is an inositol 1,4,5-trisphosphate (InsP3) 5-phosphatase. InsP3 5-phosphatases hydrolyze Ins(1,4,5)P3, which mobilizes intracellular calcium and acts as a second messenger mediating cell responses to various stimulation. Studies of the mouse counterpart suggest that this protein may hydrolyze phosphatidylinositol 3,4,5-trisphosphate and phosphatidylinositol 3,5-bisphosphate on the cytoplasmic Golgi membrane and thereby regulate Golgi-vesicular trafficking. Mutations in this gene cause Joubert syndrome; a clinically and genetically heterogenous group of disorders characterized by midbrain-hindbrain malformation and various associated ciliopathies that include retinal dystrophy, nephronophthisis, liver fibrosis and polydactyly. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jan 2016]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).
• BP6: Variant 9-136439387-G-C is Benign according to our data. Variant chr9-136439387-G-C is described in ClinVar as [Benign]. Clinvar id is 129273.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr9-136439387-G-C is described in Lovd as [Benign].
• BP7: Synonymous conserved (PhyloP=-3.43 with no splicing effect.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.075 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
INPP5E	NM_019892.6	c.33C>G	p.Ser11Ser	synonymous_variant	Exon 1 of 10	ENST00000371712.4	NP_063945.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
INPP5E	ENST00000371712.4	c.33C>G	p.Ser11Ser	synonymous_variant	Exon 1 of 10	1	NM_019892.6	ENSP00000360777.3
INPP5E	ENST00000676019.1	c.33C>G	p.Ser11Ser	synonymous_variant	Exon 1 of 10			ENSP00000501984.1
INPP5E	ENST00000635815.1	n.437C>G		non_coding_transcript_exon_variant	Exon 1 of 1	6

Frequencies

GnomAD3 genomes AF: 0.0229 AC: 3475 AN: 152020 Hom.: 168 Cov.: 33

Gnomad AFR AF: 0.0774

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0106

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00503

Gnomad SAS AF: 0.000413

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.0287

Gnomad NFE AF: 0.000515

Gnomad OTH AF: 0.0167

GnomAD3 exomes AF: 0.00231 AC: 173 AN: 74920 Hom.: 4 AF XY: 0.00168 AC XY: 73 AN XY: 43476

Gnomad AFR exome AF: 0.0855

Gnomad AMR exome AF: 0.00357

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00685

Gnomad SAS exome AF: 0.0000632

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000573

Gnomad OTH exome AF: 0.00326

GnomAD4 exome AF: 0.00244 AC: 3200 AN: 1311480 Hom.: 104 Cov.: 34 AF XY: 0.00216 AC XY: 1395 AN XY: 645926

Gnomad4 AFR exome AF: 0.0839

Gnomad4 AMR exome AF: 0.00480

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00338

Gnomad4 SAS exome AF: 0.000354

Gnomad4 FIN exome AF: 0.0000601

Gnomad4 NFE exome AF: 0.000262

Gnomad4 OTH exome AF: 0.00802

GnomAD4 genome AF: 0.0229 AC: 3478 AN: 152128 Hom.: 168 Cov.: 33 AF XY: 0.0219 AC XY: 1630 AN XY: 74376

Gnomad4 AFR AF: 0.0773

Gnomad4 AMR AF: 0.0106

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00485

Gnomad4 SAS AF: 0.000414

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000515

Gnomad4 OTH AF: 0.0170

Alfa AF: 0.00406 Hom.: 2

Bravo AF: 0.0260

Asia WGS AF: 0.0120 AC: 40 AN: 3454

ClinVar

Significance: Benign

Submissions summary: Benign:8

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:5

-

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

-

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

-

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

-

Genetic Services Laboratory, University of Chicago

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -

Jul 30, 2015

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

not provided Benign:1

-

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Joubert syndrome 1 Benign:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Familial aplasia of the vermis Benign:1

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: 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	-0.86
CADD	Benign	1.2
DANN	Benign	0.66

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

Other links and lift over

dbSNP: rs79161998; hg19: chr9-139333839;