X-70453771-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_021120.4(DLG3):​c.1280G>A​(p.Arg427His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000035 in 1,199,848 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 17 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000036 ( 0 hom., 1 hem., cov: 22)
Exomes 𝑓: 0.000035 ( 0 hom. 16 hem. )

Consequence

DLG3
NM_021120.4 missense

Scores

2
3
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1B:1

Conservation

PhyloP100: 9.47
Variant links:
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)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.24771571).
BS2
High Hemizygotes in GnomAdExome4 at 16 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DLG3NM_021120.4 linkc.1280G>A p.Arg427His missense_variant 8/19 ENST00000374360.8 NP_066943.2 Q92796-1Q59FY1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DLG3ENST00000374360.8 linkc.1280G>A p.Arg427His missense_variant 8/191 NM_021120.4 ENSP00000363480.3 Q92796-1

Frequencies

GnomAD3 genomes
AF:
0.0000359
AC:
4
AN:
111456
Hom.:
0
Cov.:
22
AF XY:
0.0000297
AC XY:
1
AN XY:
33640
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:
0.000566
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000377
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000242
AC:
4
AN:
165533
Hom.:
0
AF XY:
0.0000385
AC XY:
2
AN XY:
51935
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000300
Gnomad SAS 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:
0.0000349
AC:
38
AN:
1088392
Hom.:
0
Cov.:
31
AF XY:
0.0000451
AC XY:
16
AN XY:
354698
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000998
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000597
Gnomad4 OTH exome
AF:
0.0000656
GnomAD4 genome
AF:
0.0000359
AC:
4
AN:
111456
Hom.:
0
Cov.:
22
AF XY:
0.0000297
AC XY:
1
AN XY:
33640
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000566
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000377
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000793
ExAC
AF:
0.0000742
AC:
9

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Intellectual disability, X-linked 90 Uncertain:1Benign:1
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvitySep 13, 2022- -
Benign, no assertion criteria providedcase-controlMedical Genetic Institute of Henan Province, Henan Provincial People’s Hospital-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.24
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.38
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.12
T;T;.
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.92
D;D;D
M_CAP
Benign
0.074
D
MetaRNN
Benign
0.25
T;T;T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
1.5
.;L;.
PrimateAI
Pathogenic
0.93
D
PROVEAN
Uncertain
-2.9
D;D;D
REVEL
Benign
0.26
Sift
Benign
0.042
D;D;T
Sift4G
Benign
0.077
T;T;T
Polyphen
0.99
.;D;.
Vest4
0.53
MutPred
0.63
.;Loss of MoRF binding (P = 0.04);.;
MVP
0.73
MPC
2.0
ClinPred
0.42
T
GERP RS
4.0
Varity_R
0.51
gMVP
0.49

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs775293712; hg19: chrX-69673621; COSMIC: COSV52079852; COSMIC: COSV52079852; API