chr18-3879668-C-T

Variant summary

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

The NM_004746.4(DLGAP1):​c.401G>A​(p.Ser134Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

DLGAP1
NM_004746.4 missense

Scores

6
7
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.88
Variant links:
Genes affected
DLGAP1 (HGNC:2905): (DLG associated protein 1) Predicted to enable molecular adaptor activity. Predicted to be a structural constituent of postsynaptic density. Predicted to be involved in several processes, including aggresome assembly; regulation of postsynaptic neurotransmitter receptor activity; and regulation of proteasomal protein catabolic process. Predicted to be located in plasma membrane. Predicted to be part of postsynaptic density. Predicted to be active in glutamatergic synapse and postsynaptic density, intracellular component. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DLGAP1NM_004746.4 linkuse as main transcriptc.401G>A p.Ser134Asn missense_variant 4/13 ENST00000315677.8 NP_004737.2 O14490-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DLGAP1ENST00000315677.8 linkuse as main transcriptc.401G>A p.Ser134Asn missense_variant 4/135 NM_004746.4 ENSP00000316377.3 O14490-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1454136
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
723728
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 10, 2024The c.401G>A (p.S134N) alteration is located in exon 4 (coding exon 1) of the DLGAP1 gene. This alteration results from a G to A substitution at nucleotide position 401, causing the serine (S) at amino acid position 134 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.88
BayesDel_addAF
Benign
-0.0092
T
BayesDel_noAF
Benign
-0.25
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Benign
0.39
T;.;.
Eigen
Pathogenic
0.93
Eigen_PC
Pathogenic
0.89
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.93
D;D;D
M_CAP
Benign
0.028
D
MetaRNN
Uncertain
0.50
T;T;T
MetaSVM
Benign
-0.69
T
MutationAssessor
Uncertain
2.7
M;M;.
PrimateAI
Pathogenic
0.79
T
PROVEAN
Uncertain
-2.5
D;.;.
REVEL
Uncertain
0.30
Sift
Pathogenic
0.0
D;.;.
Sift4G
Pathogenic
0.0
D;D;.
Polyphen
1.0
D;.;D
Vest4
0.90
MutPred
0.25
Loss of phosphorylation at S134 (P = 0.0136);Loss of phosphorylation at S134 (P = 0.0136);Loss of phosphorylation at S134 (P = 0.0136);
MVP
0.59
MPC
1.1
ClinPred
0.99
D
GERP RS
5.5
Varity_R
0.74
gMVP
0.56

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr18-3879668; API