rs747546981

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 1P and 4B. PP3BS2

The NM_001242896.3(DEPDC5):​c.1385A>G​(p.Tyr462Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000136 in 1,614,068 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y462F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

DEPDC5
NM_001242896.3 missense

Scores

8
8
3

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 8.86

Publications

2 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.835
BS2
High AC in GnomAdExome4 at 21 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DEPDC5NM_001242896.3 linkc.1385A>G p.Tyr462Cys missense_variant Exon 20 of 43 ENST00000651528.2 NP_001229825.1 O75140-10

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DEPDC5ENST00000651528.2 linkc.1385A>G p.Tyr462Cys missense_variant Exon 20 of 43 NM_001242896.3 ENSP00000498382.1 O75140-10
ENSG00000285404ENST00000646701.1 linkc.1301A>G p.Tyr434Cys missense_variant Exon 18 of 21 ENSP00000496158.1 A0A2R8YF50

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152178
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
3
AN:
249514
AF XY:
0.0000148
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000557
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000144
AC:
21
AN:
1461890
Hom.:
0
Cov.:
32
AF XY:
0.0000165
AC XY:
12
AN XY:
727246
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.0000671
AC:
3
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.0000927
AC:
8
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000809
AC:
9
AN:
1112010
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152178
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74352
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41448
American (AMR)
AF:
0.00
AC:
0
AN:
15274
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000756
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Sep 05, 2024
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Reported previously in an individual with intellectual disability, seizures, and hemispheric malformation of cortical development; segregation information was not provided (PMID: 30093711); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 30093711) -

Nov 01, 2021
CeGaT Center for Human Genetics Tuebingen
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Epilepsy, familial focal, with variable foci 1 Uncertain:1
-
Neuberg Centre For Genomic Medicine, NCGM
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The missense variant c.1385A>G (p.Tyr462Cys) in DEPDC5 gene has been submitted to ClinVar as a Variant of Uncertain Significance. The c.1385A>G (p.Tyr462Cys) variant has not been reported in the literature in individuals with DEPDC5-related disease. The c.1385A>G (p.Tyr462Cys) variant is reported with the allele frequency (0.001%) in the gnomAD Exomes and is novel (not in any individuals) in 1000 Genomes. The amino acid Tyr at position 462 is changed to a Cys changing protein sequence and it might alter its composition and physico-chemical properties. The variant is predicted to be damaging by both SIFT and PolyPhen2. The residue is conserved across species. The amino acid change p.Tyr462Cys in DEPDC5 is predicted as conserved by GERP++ and PhyloP across 100 vertebrates. For these reasons, this variant has been classified as Variant of Uncertain Significance (VUS). -

Familial focal epilepsy with variable foci Uncertain:1
Dec 24, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces tyrosine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 462 of the DEPDC5 protein (p.Tyr462Cys). This variant is present in population databases (rs747546981, gnomAD 0.006%). This missense change has been observed in individual(s) with frontal lobe epilepsy (PMID: 30093711). ClinVar contains an entry for this variant (Variation ID: 466451). 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
Benign
0.25
BayesDel_addAF
Uncertain
0.14
D
BayesDel_noAF
Pathogenic
0.14
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.43
.;.;.;.;.;.;.;.;T;.;.;.;.;.;.;T;.;.;.;.;.;.
Eigen
Pathogenic
0.75
Eigen_PC
Pathogenic
0.75
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.98
D;D;D;D;D;D;D;D;D;D;.;.;D;D;.;.;D;D;.;D;D;D
M_CAP
Uncertain
0.18
D
MetaRNN
Pathogenic
0.83
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Uncertain
-0.28
T
MutationAssessor
Benign
2.0
M;.;.;M;M;.;.;M;M;.;M;.;M;.;M;M;.;.;M;M;.;.
PhyloP100
8.9
PrimateAI
Pathogenic
0.83
D
PROVEAN
Pathogenic
-7.7
D;.;.;.;.;.;.;.;D;.;D;.;.;.;D;D;.;.;D;D;.;.
REVEL
Uncertain
0.64
Sift
Uncertain
0.0020
D;.;.;.;.;.;.;.;D;.;D;.;.;.;D;D;.;.;D;D;.;.
Sift4G
Uncertain
0.0020
D;.;.;.;.;.;.;.;D;.;D;.;.;.;D;D;.;.;D;D;.;.
Polyphen
1.0, 1.0
.;.;.;.;.;.;.;D;D;.;.;.;.;.;D;D;.;.;.;.;.;.
Vest4
0.90
MutPred
0.58
Loss of phosphorylation at Y462 (P = 0.0103);Loss of phosphorylation at Y462 (P = 0.0103);Loss of phosphorylation at Y462 (P = 0.0103);Loss of phosphorylation at Y462 (P = 0.0103);Loss of phosphorylation at Y462 (P = 0.0103);Loss of phosphorylation at Y462 (P = 0.0103);.;Loss of phosphorylation at Y462 (P = 0.0103);Loss of phosphorylation at Y462 (P = 0.0103);.;Loss of phosphorylation at Y462 (P = 0.0103);Loss of phosphorylation at Y462 (P = 0.0103);Loss of phosphorylation at Y462 (P = 0.0103);.;Loss of phosphorylation at Y462 (P = 0.0103);Loss of phosphorylation at Y462 (P = 0.0103);Loss of phosphorylation at Y462 (P = 0.0103);Loss of phosphorylation at Y462 (P = 0.0103);Loss of phosphorylation at Y462 (P = 0.0103);Loss of phosphorylation at Y462 (P = 0.0103);Loss of phosphorylation at Y462 (P = 0.0103);.;
MVP
0.47
MPC
1.3
ClinPred
0.99
D
GERP RS
5.6
Varity_R
0.37
Mutation Taster
=0/100
disease causing

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

Other links and lift over

dbSNP: rs747546981; hg19: chr22-32206567; API