X-70453771-G-A

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBS1_SupportingBS2

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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.24771571).
BS1
Variant frequency is greater than expected in population eas. gnomad4_exome allele frequency = 0.0000349 (38/1088392) while in subpopulation EAS AF= 0.000998 (30/30069). AF 95% confidence interval is 0.000718. There are 0 homozygotes in gnomad4_exome. There are 16 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
BS2
High Hemizygotes in GnomAdExome4 at 16 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DLG3NM_021120.4 linkuse as main transcriptc.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 linkuse as main transcriptc.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