18-3879533-C-T

Variant names:

• chr18-3879533-C-T
• rs770967709
• NM_004746.4:c.536G>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_004746.4(DLGAP1):​c.536G>A​(p.Gly179Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000131 in 152,222 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G179A) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: DLGAP1 NM_004746.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.32
• Publications: 0 publications found

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

LOC124904238 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.18549263).

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DLGAP1	NM_004746.4	MANE Select	c.536G>A	p.Gly179Asp	missense	Exon 4 of 13	NP_004737.2
	DLGAP1	NM_001398525.1		c.536G>A	p.Gly179Asp	missense	Exon 4 of 14	NP_001385454.1
	DLGAP1	NM_001398526.1		c.536G>A	p.Gly179Asp	missense	Exon 4 of 14	NP_001385455.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DLGAP1	ENST00000315677.8	TSL:5 MANE Select	c.536G>A	p.Gly179Asp	missense	Exon 4 of 13	ENSP00000316377.3	O14490-1
	DLGAP1	ENST00000498188.5	TSL:1	n.544G>A		non_coding_transcript_exon	Exon 1 of 5
	DLGAP1-AS3	ENST00000577649.1	TSL:1	n.112+1242C>T		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152222 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000482

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: 0.00000422 AC: 1 AN: 236694 AF XY: 0.00

Gnomad AFR exome AF: 0.0000637

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: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1447928 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 720618

African (AFR) AF: 0.00 AC: 0 AN: 33400

American (AMR) AF: 0.00 AC: 0 AN: 44486

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25858

East Asian (EAS) AF: 0.00 AC: 0 AN: 39646

South Asian (SAS) AF: 0.00 AC: 0 AN: 85836

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 42328

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5758

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1110426

Other (OTH) AF: 0.00 AC: 0 AN: 60190

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152222 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74358

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000482 AC: 2 AN: 41456

American (AMR) AF: 0.00 AC: 0 AN: 15288

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5184

South Asian (SAS) AF: 0.00 AC: 0 AN: 4836

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10628

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68038

Other (OTH) AF: 0.00 AC: 0 AN: 2094

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000203476), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000113

ExAC AF: 0.00000830 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.53
BayesDel_addAF	Benign	-0.14	T
BayesDel_noAF	Benign	-0.44
CADD	Uncertain	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.092	T
Eigen	Benign	0.14
Eigen_PC	Uncertain	0.28
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Uncertain	0.92	D
M_CAP	Benign	0.0035	T
MetaRNN	Benign	0.19	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.2	M
PhyloP100		3.3
PrimateAI	Uncertain	0.56	T
PROVEAN	Benign	-2.0	N
REVEL	Benign	0.072
Sift	Uncertain	0.029	D
Sift4G	Benign	0.65	T
Polyphen		0.038	B
Vest4		0.46
MutPred		0.17		Gain of ubiquitination at K180 (P = 0.0327)
MVP		0.26
MPC		0.60
ClinPred		0.25	T
GERP RS		5.8
Varity_R		0.16
gMVP		0.13
Mutation Taster		=63/37	polymorphism

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

Other links and lift over

dbSNP: rs770967709; hg19: chr18-3879533;