rs778855350

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_021120.4(DLG3):​c.128G>T​(p.Gly43Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000197 in 1,167,472 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 5 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict 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. G43R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 0 hem., cov: 24)
Exomes 𝑓: 0.000020 ( 0 hom. 5 hem. )

Consequence

DLG3
NM_021120.4 missense

Scores

5
11

Clinical Significance

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

Conservation

PhyloP100: 2.48

Publications

1 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 Gene-Disease associations (from GenCC):
  • intellectual disability, X-linked 90
    Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
  • non-syndromic X-linked intellectual disability
    Inheritance: XL Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0098207).
BP6
Variant X-70445329-G-T is Benign according to our data. Variant chrX-70445329-G-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 985614.
BS2
High Hemizygotes in GnomAdExome4 at 5 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.128G>Tp.Gly43Val
missense
Exon 1 of 19NP_066943.2Q92796-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DLG3
ENST00000374360.8
TSL:1 MANE Select
c.128G>Tp.Gly43Val
missense
Exon 1 of 19ENSP00000363480.3Q92796-1
DLG3
ENST00000194900.8
TSL:5
c.128G>Tp.Gly43Val
missense
Exon 1 of 21ENSP00000194900.4Q5JUW8
DLG3
ENST00000949779.1
c.128G>Tp.Gly43Val
missense
Exon 1 of 20ENSP00000619838.1

Frequencies

GnomAD3 genomes
AF:
0.0000176
AC:
2
AN:
113419
Hom.:
0
Cov.:
24
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:
0.000280
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000188
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000667
AC:
7
AN:
104956
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000826
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000199
AC:
21
AN:
1054004
Hom.:
0
Cov.:
31
AF XY:
0.0000146
AC XY:
5
AN XY:
343614
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
25198
American (AMR)
AF:
0.00
AC:
0
AN:
28743
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
18638
East Asian (EAS)
AF:
0.000399
AC:
11
AN:
27577
South Asian (SAS)
AF:
0.0000798
AC:
4
AN:
50130
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
33563
Middle Eastern (MID)
AF:
0.000252
AC:
1
AN:
3967
European-Non Finnish (NFE)
AF:
0.00000608
AC:
5
AN:
821710
Other (OTH)
AF:
0.00
AC:
0
AN:
44478
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
2
3
5
6
8
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:
0.0000176
AC:
2
AN:
113468
Hom.:
0
Cov.:
24
AF XY:
0.00
AC XY:
0
AN XY:
35632
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31396
American (AMR)
AF:
0.00
AC:
0
AN:
10913
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2660
East Asian (EAS)
AF:
0.000281
AC:
1
AN:
3557
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2847
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6338
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
216
European-Non Finnish (NFE)
AF:
0.0000188
AC:
1
AN:
53303
Other (OTH)
AF:
0.00
AC:
0
AN:
1553
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
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 Het
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:
0.0000567
ExAC
AF:
0.0000388
AC:
4

ClinVar

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

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Benign
-0.57
T
BayesDel_noAF
Benign
-0.66
CADD
Benign
23
DANN
Uncertain
0.98
DEOGEN2
Benign
0.046
T
FATHMM_MKL
Uncertain
0.79
D
LIST_S2
Uncertain
0.89
D
M_CAP
Benign
0.036
D
MetaRNN
Benign
0.0098
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.34
N
PhyloP100
2.5
PrimateAI
Uncertain
0.77
T
PROVEAN
Benign
-0.16
N
REVEL
Benign
0.11
Sift
Uncertain
0.0040
D
Sift4G
Benign
0.24
T
Polyphen
1.0
D
Vest4
0.34
MutPred
0.31
Loss of relative solvent accessibility (P = 0.0071)
MVP
0.38
MPC
0.93
ClinPred
0.16
T
GERP RS
1.8
PromoterAI
-0.073
Neutral
Varity_R
0.12
gMVP
0.59
Mutation Taster
=96/4
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: rs778855350; hg19: chrX-69665179; API