Genetic Variant DLGAP1:p.Ser296Ser (chr18-3879181-C-A) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_004746.4(DLGAP1):c.888G>T(p.Ser296Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000197 in 1,525,988 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. S296S) has been classified as Benign.

Frequency

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

Exomes 𝑓: 0.0000015 ( 0 hom. )

Consequence

DLGAP1
NM_004746.4 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.34

Publications

2 publications found

Variant links:

Genes affected

DLGAP1 (HGNC:2905): (DLG associated protein 1) Predicted to enable molecular adaptor activity. Predicted to be a structural constituent of postsynaptic density. Predicted to be involved in several processes, including aggresome assembly; regulation of postsynaptic neurotransmitter receptor activity; and regulation of proteasomal protein catabolic process. Predicted to be located in plasma membrane. Predicted to be part of postsynaptic density. Predicted to be active in glutamatergic synapse and postsynaptic density, intracellular component. [provided by Alliance of Genome Resources, Apr 2022]

DLGAP1 links:

DLGAP1-AS3 (HGNC:27317): (DLGAP1 antisense RNA 3)

DLGAP1-AS3 links:

LOC124904238 (HGNC:):

LOC124904238 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.65).

BP7

Synonymous conserved (PhyloP=-2.34 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004746.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
DLGAP1	NM_004746.4	MANE Select	c.888G>T	p.Ser296Ser	synonymous	Exon 4 of 13	NP_004737.2
DLGAP1	NM_001398525.1		c.888G>T	p.Ser296Ser	synonymous	Exon 4 of 14	NP_001385454.1
DLGAP1	NM_001398526.1		c.888G>T	p.Ser296Ser	synonymous	Exon 4 of 14	NP_001385455.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DLGAP1	ENST00000315677.8	TSL:5 MANE Select	c.888G>T	p.Ser296Ser	synonymous	Exon 4 of 13	ENSP00000316377.3	O14490-1
DLGAP1	ENST00000498188.5	TSL:1	n.896G>T		non_coding_transcript_exon	Exon 1 of 5
DLGAP1-AS3	ENST00000577649.1	TSL:1	n.112+890C>A		intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000546

AC:

AN:

183182

AF XY:

0.0000104

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000114

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000146

AC:

AN:

1373802

Hom.:

Cov.:

AF XY:

0.00000297

AC XY:

AN XY:

673720

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

30596

American (AMR)

AF:

0.00

AC:

AN:

31182

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

20328

East Asian (EAS)

AF:

0.00

AC:

AN:

38828

South Asian (SAS)

AF:

0.00

AC:

AN:

71432

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50056

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5338

European-Non Finnish (NFE)

AF:

0.00000187

AC:

AN:

1069520

Other (OTH)

AF:

0.00

AC:

AN:

56522

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.600

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:

0.00000657

AC:

AN:

152186

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74344

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41444

American (AMR)

AF:

0.00

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.000207

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68038

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.65

CADD

Benign

1.0

(source)

DANN

Benign

0.85

PhyloP100

-2.3

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over