X-70453771-G-A

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R427L) has been classified 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
11

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 9.47

Publications

4 publications found
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 was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.24771571).
BP6
Variant X-70453771-G-A is Benign according to our data. Variant chrX-70453771-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 1341535.
BS2
High Hemizygotes in GnomAdExome4 at 16 XL gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021120.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DLG3
NM_021120.4
MANE Select
c.1280G>Ap.Arg427His
missense
Exon 8 of 19NP_066943.2Q92796-1
DLG3
NM_020730.3
c.269G>Ap.Arg90His
missense
Exon 2 of 14NP_065781.1Q92796-2
DLG3-AS1
NR_046586.1
n.84-465C>T
intron
N/A

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DLG3
ENST00000374360.8
TSL:1 MANE Select
c.1280G>Ap.Arg427His
missense
Exon 8 of 19ENSP00000363480.3Q92796-1
DLG3
ENST00000374355.8
TSL:1
c.269G>Ap.Arg90His
missense
Exon 2 of 14ENSP00000363475.3Q92796-2
DLG3
ENST00000194900.8
TSL:5
c.1334G>Ap.Arg445His
missense
Exon 9 of 21ENSP00000194900.4Q5JUW8

Frequencies

GnomAD3 genomes
AF:
0.0000359
AC:
4
AN:
111456
Hom.:
0
Cov.:
22
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
GnomAD2 exomes
AF:
0.0000242
AC:
4
AN:
165533
AF XY:
0.0000385
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 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
African (AFR)
AF:
0.00
AC:
0
AN:
26290
American (AMR)
AF:
0.00
AC:
0
AN:
34482
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
18844
East Asian (EAS)
AF:
0.000998
AC:
30
AN:
30069
South Asian (SAS)
AF:
0.00
AC:
0
AN:
51884
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40064
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4084
European-Non Finnish (NFE)
AF:
0.00000597
AC:
5
AN:
836953
Other (OTH)
AF:
0.0000656
AC:
3
AN:
45722
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.511
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
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
African (AFR)
AF:
0.00
AC:
0
AN:
30621
American (AMR)
AF:
0.00
AC:
0
AN:
10500
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2644
East Asian (EAS)
AF:
0.000566
AC:
2
AN:
3536
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2611
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6038
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
238
European-Non Finnish (NFE)
AF:
0.0000377
AC:
2
AN:
53095
Other (OTH)
AF:
0.00
AC:
0
AN:
1488
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Hom
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000793
ExAC
AF:
0.0000742
AC:
9

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
1
Intellectual disability, X-linked 90 (2)
-
-
1
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

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
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.92
D
M_CAP
Benign
0.074
D
MetaRNN
Benign
0.25
T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
1.5
L
PhyloP100
9.5
PrimateAI
Pathogenic
0.93
D
PROVEAN
Uncertain
-2.9
D
REVEL
Benign
0.26
Sift
Benign
0.042
D
Sift4G
Benign
0.077
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
Mutation Taster
=61/39
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

Publications

Other links and lift over

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