Genetic Variant DEPDC5:p.Cys952Cys (chr22-31845072-T-C) – ACMG Classification: Benign (-17 pts)

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4BP6_Very_StrongBS1BS2

The NM_001242896.3(DEPDC5):c.2856T>C(p.Cys952Cys) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000657 in 1,614,190 control chromosomes in the GnomAD database, including 12 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0036 ( 6 hom., cov: 31)

Exomes 𝑓: 0.00035 ( 6 hom. )

Consequence

DEPDC5
NM_001242896.3 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -0.177

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: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), 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:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -17 ACMG points.

BP4

Computational evidence support a benign effect (REVEL=0.228).

BP6

Variant 22-31845072-T-C is Benign according to our data. Variant chr22-31845072-T-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 414445.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00356 (543/152352) while in subpopulation AFR AF = 0.0125 (521/41584). AF 95% confidence interval is 0.0116. There are 6 homozygotes in GnomAd4. There are 254 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

BS2

High AC in GnomAd4 at 543 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001242896.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DEPDC5	NM_001242896.3	MANE Select	c.2856T>C	p.Cys952Cys	synonymous	Exon 30 of 43	NP_001229825.1	O75140-10
DEPDC5	NM_001364318.2		c.2856T>C	p.Cys952Cys	synonymous	Exon 30 of 43	NP_001351247.1	O75140-10
DEPDC5	NM_001136029.4		c.2829T>C	p.Cys943Cys	synonymous	Exon 30 of 43	NP_001129501.1	O75140-9

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DEPDC5	ENST00000651528.2	MANE Select	c.2856T>C	p.Cys952Cys	synonymous	Exon 30 of 43	ENSP00000498382.1	O75140-10
DEPDC5	ENST00000382112.8	TSL:1	c.2856T>C	p.Cys952Cys	synonymous	Exon 30 of 43	ENSP00000371546.4	O75140-10
DEPDC5	ENST00000433147.2	TSL:1	c.2772T>C	p.Cys924Cys	synonymous	Exon 29 of 42	ENSP00000410544.2	H0Y770

Frequencies

GnomAD3 genomes

AF:

0.00355

AC:

541

AN:

152234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0125

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00111

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00143

GnomAD2 exomes

AF:

0.000910

AC:

227

AN:

249432

AF XY:

0.000665

show subpopulations

Gnomad AFR exome

AF:

0.0136

Gnomad AMR exome

AF:

0.000319

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000353

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000354

AC:

517

AN:

1461838

Hom.:

Cov.:

AF XY:

0.000300

AC XY:

218

AN XY:

727224

show subpopulations

African (AFR)

AF:

0.0131

AC:

439

AN:

33480

American (AMR)

AF:

0.000470

AC:

AN:

44710

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000696

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000989

AC:

AN:

1111982

Other (OTH)

AF:

0.000629

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

130

163

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<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:

0.00356

AC:

543

AN:

152352

Hom.:

Cov.:

AF XY:

0.00341

AC XY:

254

AN XY:

74496

show subpopulations

African (AFR)

AF:

0.0125

AC:

521

AN:

41584

American (AMR)

AF:

0.00111

AC:

AN:

15312

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.000207

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68032

Other (OTH)

AF:

0.00142

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.509

Heterozygous variant carriers

119

149

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00140

Hom.:

Bravo

AF:

0.00383

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

Familial focal epilepsy with variable foci (1)

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.56

CADD

Benign

6.3

(source)

DANN

Benign

0.59

PhyloP100

-0.18

Mutation Taster

=92/8

polymorphism

(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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over