Genetic Variant DENND2C:p.Glu775Lys (chr1-114595834-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3

The NM_001256404.2(DENND2C):c.2323G>A(p.Glu775Lys) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000694 in 1,613,760 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E775Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00045 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

DENND2C
NM_001256404.2 missense, splice_region

Scores

Splicing: ADA: 0.9596

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.69

Publications

0 publications found

Variant links:

Genes affected

DENND2C (HGNC:24748): (DENN domain containing 2C) Enables guanyl-nucleotide exchange factor activity. Predicted to be involved in regulation of catalytic activity. Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

DENND2C links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PP3

Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001256404.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DENND2C	NM_001256404.2	MANE Select	c.2323G>A	p.Glu775Lys	missense splice_region	Exon 17 of 21	NP_001243333.1	Q68D51-1
	DENND2C	NM_198459.4		c.2152G>A	p.Glu718Lys	missense splice_region	Exon 14 of 18	NP_940861.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DENND2C	ENST00000393274.6	TSL:5 MANE Select	c.2323G>A	p.Glu775Lys	missense splice_region	Exon 17 of 21	ENSP00000376955.1	Q68D51-1
DENND2C	ENST00000481894.1	TSL:1	n.1611G>A		splice_region non_coding_transcript_exon	Exon 14 of 18
DENND2C	ENST00000935533.1		c.2323G>A	p.Glu775Lys	missense splice_region	Exon 16 of 20	ENSP00000605592.1

Frequencies

GnomAD3 genomes

AF:

0.000447

AC:

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00152

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.000478

GnomAD2 exomes

AF:

0.000107

AC:

AN:

251372

AF XY:

0.0000957

show subpopulations

Gnomad AFR exome

AF:

0.00160

Gnomad AMR exome

AF:

0.0000289

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:

0.0000301

AC:

AN:

1461438

Hom.:

Cov.:

AF XY:

0.0000303

AC XY:

AN XY:

727062

show subpopulations

African (AFR)

AF:

0.00120

AC:

AN:

33470

American (AMR)

AF:

0.0000447

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26112

East Asian (EAS)

AF:

0.00

AC:

AN:

39674

South Asian (SAS)

AF:

0.00

AC:

AN:

86244

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53384

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111704

Other (OTH)

AF:

0.0000331

AC:

AN:

60366

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.458

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

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

GnomAD4 genome

AF:

0.000446

AC:

AN:

152322

Hom.:

Cov.:

AF XY:

0.000443

AC XY:

AN XY:

74498

show subpopulations

African (AFR)

AF:

0.00152

AC:

AN:

41566

American (AMR)

AF:

0.000261

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68036

Other (OTH)

AF:

0.000473

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.510

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

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:

0.0221

Hom.:

2352

Bravo

AF:

0.000552

ESP6500AA

AF:

0.00250

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000165

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.44

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0050

Eigen

Benign

0.17

Eigen_PC

Uncertain

0.33

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.77

M_CAP

Benign

0.013

MetaRNN

Benign

0.016

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

PhyloP100

3.7

PrimateAI

Uncertain

0.71

PROVEAN

Benign

-1.4

REVEL

Benign

0.12

Sift

Benign

0.094

Sift4G

Benign

0.093

Polyphen

0.021

Vest4

0.44

MVP

0.28

MPC

0.20

ClinPred

0.12

GERP RS

5.9

Varity_R

0.24

gMVP

0.44

Mutation Taster

=70/30

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

0.96

dbscSNV1_RF

Pathogenic

0.76

Splicevardb

2.0

SpliceAI score (max)

0.040

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