rs34857356

Variant names:

• chr11-83471683-G-A
• rs34857356
• NM_001142699.3:c.2389C>T

Your query was ambiguous. Multiple possible variants found:

• chr11-83471683-G-A
• chr11-83471683-G-C
• chr11-83471683-G-T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_001142699.3(DLG2):​c.2389C>T​(p.Arg797Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,460,970 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 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. R797G) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: DLG2 NM_001142699.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.47
• Publications: 7 publications found

Genes affected

DLG2 (HGNC:2901): (discs large MAGUK scaffold protein 2) This gene encodes a member of the membrane-associated guanylate kinase (MAGUK) family. The encoded protein forms a heterodimer with a related family member that may interact at postsynaptic sites to form a multimeric scaffold for the clustering of receptors, ion channels, and associated signaling proteins. Multiple transcript variants encoding different isoforms have been found for this gene. Additional transcript variants have been described, but their full-length nature is not known. [provided by RefSeq, Dec 2008]

DLG2 Gene-Disease associations (from GenCC):

• neurodevelopmental disorder

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
• delayed puberty, self-limited

  Inheritance: AR, AD Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.784

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001142699.3. 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
	DLG2	NM_001142699.3	MANE Select	c.2389C>T	p.Arg797Trp	missense	Exon 24 of 28	NP_001136171.1	Q15700-2
	DLG2	NM_001351274.2		c.2371C>T	p.Arg791Trp	missense	Exon 23 of 27	NP_001338203.1	A0A994J819
	DLG2	NM_001351275.2		c.2368C>T	p.Arg790Trp	missense	Exon 22 of 26	NP_001338204.1	A0A994J7P1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DLG2	ENST00000376104.7	TSL:1 MANE Select	c.2389C>T	p.Arg797Trp	missense	Exon 24 of 28	ENSP00000365272.2	Q15700-2
	DLG2	ENST00000398309.6	TSL:1	c.2074C>T	p.Arg692Trp	missense	Exon 19 of 23	ENSP00000381355.2	Q15700-1
	DLG2	ENST00000532653.5	TSL:1	c.2020C>T	p.Arg674Trp	missense	Exon 19 of 23	ENSP00000435849.1	B7Z2T4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000402 AC: 1 AN: 248636 AF XY: 0.00000741

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: 0.00000888

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1460970 Hom.: 0 Cov.: 30 AF XY: 0.00000413 AC XY: 3 AN XY: 726776

African (AFR) AF: 0.00 AC: 0 AN: 33420

American (AMR) AF: 0.0000224 AC: 1 AN: 44640

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26104

East Asian (EAS) AF: 0.00 AC: 0 AN: 39684

South Asian (SAS) AF: 0.00 AC: 0 AN: 86216

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53384

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111416

Other (OTH) AF: 0.00 AC: 0 AN: 60342

GnomAD4 genome Cov.: 32

ExAC AF: 0.0000166 AC: 2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.26	D
BayesDel_noAF	Uncertain	0.13
CADD	Pathogenic	27
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.32	T
Eigen	Uncertain	0.54
Eigen_PC	Uncertain	0.45
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Pathogenic	1.0	D
M_CAP	Benign	0.080	D
MetaRNN	Pathogenic	0.78	D
MetaSVM	Uncertain	-0.25	T
MutationAssessor	Pathogenic	3.4	M
PhyloP100		1.5
PrimateAI	Pathogenic	0.93	D
PROVEAN	Pathogenic	-7.0	D
REVEL	Uncertain	0.38
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.90
MutPred		0.47		Loss of disorder (P = 0.0542)
MVP		0.82
MPC		1.7
ClinPred		1.0	D
GERP RS		4.2
Varity_R		0.82
gMVP		0.96
Mutation Taster		=11/89	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

Other links and lift over

dbSNP: rs34857356; hg19: chr11-83182726;