chrX-70453663-A-G

Position:

• chrX-70453663-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_021120.4(DLG3):​c.1172A>G​(p.Lys391Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,095,863 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 22)
  • Exomes 𝑓: 0.0000027 (0 hom. 0 hem.)
• Consequence: DLG3 NM_021120.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.91

Genes affected

DLG3 (HGNC:2902): (discs large MAGUK scaffold protein 3) This gene encodes a member of the membrane-associated guanylate kinase protein family. The encoded protein may play a role in clustering of NMDA receptors at excitatory synapses. It may also negatively regulate cell proliferation through interaction with the C-terminal region of the adenomatosis polyposis coli tumor suppressor protein. Mutations in this gene have been associated with X-linked cognitive disability. Alternatively spliced transcript variants have been described. [provided by RefSeq, Oct 2009]

DLG3-AS1 (HGNC:40182): (DLG3 antisense RNA 1)

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.19908732).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DLG3	NM_021120.4	c.1172A>G	p.Lys391Arg	missense_variant	8/19	ENST00000374360.8	NP_066943.2
DLG3-AS1	NR_109801.1	n.51-357T>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DLG3	ENST00000374360.8	c.1172A>G	p.Lys391Arg	missense_variant	8/19	1	NM_021120.4	ENSP00000363480
DLG3-AS1	ENST00000431103.1	n.51-357T>C		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD4 exome AF: 0.00000274 AC: 3 AN: 1095863 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 361367

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000238

Gnomad4 OTH exome AF: 0.0000217

GnomAD4 genome Cov.: 22

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Mar 22, 2017

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.23
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.43
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.087	T;T;.
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Uncertain	0.86	D;D;D
M_CAP	Benign	0.044	D
MetaRNN	Benign	0.20	T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.93	.;L;.
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Pathogenic	0.85	D
PROVEAN	Benign	-0.92	N;N;N
REVEL	Benign	0.19
Sift	Benign	0.72	T;T;T
Sift4G	Benign	0.83	T;T;T
Polyphen		0.64	.;P;.
Vest4		0.25
MutPred		0.60		.;Loss of methylation at K391 (P = 0.0112);.;
MVP		0.79
MPC		1.6
ClinPred		0.76	D
GERP RS		3.3
Varity_R		0.16
gMVP		0.64

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

LitVar

Other links and lift over

dbSNP: rs1555961844; hg19: chrX-69673513;