9-136430285-C-G

Variant names:

• chr9-136430285-C-G
• NM_019892.6:c.1794G>C

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_019892.6(INPP5E):​c.1794G>C​(p.Gly598Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000715 in 1,399,020 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. G598G) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.1e-7 (0 hom.)
• Consequence: INPP5E NM_019892.6 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.20

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 Likely_benign. Variant got -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.59).
• BP7: Synonymous conserved (PhyloP=-1.2 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
INPP5E	NM_019892.6	c.1794G>C	p.Gly598Gly	synonymous_variant	Exon 9 of 10	ENST00000371712.4	NP_063945.2
INPP5E	NM_001318502.2	c.1791G>C	p.Gly597Gly	synonymous_variant	Exon 9 of 10		NP_001305431.1
INPP5E	XM_017014926.2	c.1794G>C	p.Gly598Gly	synonymous_variant	Exon 9 of 10		XP_016870415.1
INPP5E	XM_047423603.1	c.1791G>C	p.Gly597Gly	synonymous_variant	Exon 9 of 10		XP_047279559.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
INPP5E	ENST00000371712.4	c.1794G>C	p.Gly598Gly	synonymous_variant	Exon 9 of 10	1	NM_019892.6	ENSP00000360777.3
INPP5E	ENST00000676019.1	c.1692G>C	p.Gly564Gly	synonymous_variant	Exon 9 of 10			ENSP00000501984.1
INPP5E	ENST00000674693.1	n.*50G>C		downstream_gene_variant

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.15e-7 AC: 1 AN: 1399020 Hom.: 0 Cov.: 54 AF XY: 0.00000145 AC XY: 1 AN XY: 690036

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.27e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.59
CADD	Benign	1.0
DANN	Benign	0.77

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr9-139324737;