chr22-31797623-G-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2

The NM_001242896.3(DEPDC5):c.791G>A(p.Arg264Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000105 in 1,613,774 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 0.000059 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

DEPDC5
NM_001242896.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 9.81

Publications

0 publications found

Variant links:

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]

DEPDC5 Gene-Disease associations (from GenCC):

epilepsy, familial focal, with variable foci 1
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, Ambry Genetics, Illumina, G2P
focal epilepsy
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
autosomal dominant epilepsy with auditory features
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
autosomal dominant nocturnal frontal lobe epilepsy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
familial focal epilepsy with variable foci
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Brugada syndrome
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

DEPDC5 links:

ENSG00000285404 (HGNC:):

ENSG00000285404 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.34323347).

BS2

High AC in GnomAd4 at 9 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DEPDC5	NM_001242896.3 link	c.791G>A	p.Arg264Lys	missense_variant	Exon 13 of 43	ENST00000651528.2	NP_001229825.1	O75140-10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DEPDC5	ENST00000651528.2 link	c.791G>A	p.Arg264Lys	missense_variant	Exon 13 of 43		NM_001242896.3	ENSP00000498382.1		O75140-10
ENSG00000285404	ENST00000646701.1 link	c.707G>A	p.Arg236Lys	missense_variant	Exon 11 of 21			ENSP00000496158.1		A0A2R8YF50

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00

GnomAD2 exomes

AF:

0.0000120

AC:

AN:

249164

AF XY:

0.0000148

show subpopulations

Gnomad AFR exome

AF:

0.0000646

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461636

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727132

show subpopulations

African (AFR)

AF:

0.000209

AC:

AN:

33476

American (AMR)

AF:

0.0000224

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.00

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111790

Other (OTH)

AF:

0.00

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.469

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000592

AC:

AN:

152138

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74320

show subpopulations

African (AFR)

AF:

0.000169

AC:

AN:

41438

American (AMR)

AF:

0.000131

AC:

AN:

15238

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000416

ExAC

AF:

0.00000828

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Epilepsy, familial focal, with variable foci 1

Uncertain:1

Sep 13, 2021

Fulgent Genetics, Fulgent Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Inborn genetic diseases

Uncertain:1

Nov 09, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.791G>A (p.R264K) alteration is located in exon 13 (coding exon 12) of the DEPDC5 gene. This alteration results from a G to A substitution at nucleotide position 791, causing the arginine (R) at amino acid position 264 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Familial focal epilepsy with variable foci

Uncertain:1

Dec 16, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with lysine, which is basic and polar, at codon 264 of the DEPDC5 protein (p.Arg264Lys). This variant is present in population databases (rs750467533, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with DEPDC5-related conditions. ClinVar contains an entry for this variant (Variation ID: 579549). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.39

BayesDel_addAF

Benign

-0.091

BayesDel_noAF

Benign

-0.19

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.24

.;.;.;.;.;.;.;.;T;.;.;.;.;.;.;T;.;.;.;.;.;.

Eigen

Uncertain

0.50

Eigen_PC

Uncertain

0.57

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.91

D;D;D;D;D;D;D;D;D;D;.;.;D;D;.;.;D;D;.;D;D;D

M_CAP

Benign

0.035

MetaRNN

Benign

0.34

T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.91

MutationAssessor

Benign

1.6

L;.;.;L;L;.;.;L;L;.;L;.;L;.;L;L;.;.;L;L;.;.

PhyloP100

9.8

PrimateAI

Pathogenic

0.83

PROVEAN

Benign

-0.78

N;.;.;.;.;.;N;.;N;.;N;.;.;.;N;N;.;.;N;N;.;.

REVEL

Benign

0.22

Sift

Benign

0.31

T;.;.;.;.;.;T;.;T;.;T;.;.;.;T;T;.;.;T;T;.;.

Sift4G

Benign

0.29

T;.;.;.;.;.;.;.;T;.;T;.;.;.;T;T;.;.;T;T;.;.

Polyphen

0.11, 1.0

.;.;.;.;.;.;.;B;D;.;.;.;.;.;B;D;.;.;.;.;.;.

Vest4

0.62

MutPred

0.38

Gain of ubiquitination at R264 (P = 0.0131);Gain of ubiquitination at R264 (P = 0.0131);Gain of ubiquitination at R264 (P = 0.0131);Gain of ubiquitination at R264 (P = 0.0131);Gain of ubiquitination at R264 (P = 0.0131);Gain of ubiquitination at R264 (P = 0.0131);.;Gain of ubiquitination at R264 (P = 0.0131);Gain of ubiquitination at R264 (P = 0.0131);.;Gain of ubiquitination at R264 (P = 0.0131);Gain of ubiquitination at R264 (P = 0.0131);Gain of ubiquitination at R264 (P = 0.0131);.;Gain of ubiquitination at R264 (P = 0.0131);Gain of ubiquitination at R264 (P = 0.0131);Gain of ubiquitination at R264 (P = 0.0131);Gain of ubiquitination at R264 (P = 0.0131);Gain of ubiquitination at R264 (P = 0.0131);Gain of ubiquitination at R264 (P = 0.0131);Gain of ubiquitination at R264 (P = 0.0131);.;

MVP

0.44

MPC

1.2

ClinPred

0.89

GERP RS

5.0

Varity_R

0.65

Mutation Taster

=49/51

disease causing

(source)

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

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chr22-31797623-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over