NM_001242896.3:c.2492_2493insAGA

Variant names:

• chr22-31838822-G-GAGA
• rs1555897392
• NM_001242896.3:c.2492_2493insAGA

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PM4_Supporting PP5

The NM_001242896.3(DEPDC5):​c.2492_2493insAGA​(p.Ser831delinsArgAsp) variant causes a disruptive inframe insertion change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: DEPDC5 NM_001242896.3 disruptive_inframe_insertion
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 2.92

Genes affected

DEPDC5 (HGNC:18423): (DEP domain containing 5, GATOR1 subcomplex subunit) This gene encodes a member of the IML1 family of proteins involved in G-protein signaling pathways. The mechanistic target of rapamycin complex 1 (mTORC1) pathway regulates cell growth by sensing the availability of nutrients. The protein encoded by this gene is a component of the GATOR1 (GAP activity toward Rags) complex which inhibits the amino acid-sensing branch of the mTORC1 pathway. Mutations in this gene are associated with autosomal dominant familial focal epilepsy with variable foci. A single nucleotide polymorphism in an intron of this gene has been associated with an increased risk of hepatocellular carcinoma in individuals with chronic hepatitis C virus infection. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2014]

ENSG00000285404 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM4: Nonframeshift variant in NON repetitive region in NM_001242896.3. Strenght limited to Supporting due to length of the change: 1aa.
• PP5: Variant 22-31838822-G-GAGA is Pathogenic according to our data. Variant chr22-31838822-G-GAGA is described in ClinVar as [Pathogenic]. Clinvar id is 433143.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DEPDC5	NM_001242896.3	c.2492_2493insAGA	p.Ser831delinsArgAsp	disruptive_inframe_insertion	Exon 27 of 43	ENST00000651528.2	NP_001229825.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DEPDC5	ENST00000651528.2	c.2492_2493insAGA	p.Ser831delinsArgAsp	disruptive_inframe_insertion	Exon 27 of 43		NM_001242896.3	ENSP00000498382.1
ENSG00000285404	ENST00000646701.1	c.1786+19597_1786+19598insAGA		intron_variant	Intron 20 of 20			ENSP00000496158.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Self-limited epilepsy with centrotemporal spikes Pathogenic:1

Jan 01, 2017

Bioinformatics Core, Luxembourg Center for Systems Biomedicine

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: case-control

insertion -

Computational scores

Source: dbNSFP v4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs1555897392; hg19: chr22-32234808;