8-1548724-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001346810.2(DLGAP2):​c.271C>T​(p.Pro91Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000436 in 1,606,720 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

DLGAP2
NM_001346810.2 missense

Scores

1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.74
Variant links:
Genes affected
DLGAP2 (HGNC:2906): (DLG associated protein 2) The product of this gene is a membrane-associated protein that may play a role in synapse organization and signalling in neuronal cells. This gene is biallelically expressed in the brain, however, only the paternal allele is expressed in the testis (PMID:18055845). Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jun 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.053101927).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DLGAP2NM_001346810.2 linkuse as main transcriptc.271C>T p.Pro91Ser missense_variant 5/15 ENST00000637795.2 NP_001333739.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DLGAP2ENST00000637795.2 linkuse as main transcriptc.271C>T p.Pro91Ser missense_variant 5/155 NM_001346810.2 ENSP00000489774
DLGAP2ENST00000520901.5 linkuse as main transcriptc.82C>T p.Pro28Ser missense_variant 1/101 ENSP00000430563
DLGAP2ENST00000421627.7 linkuse as main transcriptc.268C>T p.Pro90Ser missense_variant 5/155 ENSP00000400258 Q9P1A6-1
DLGAP2ENST00000612087.1 linkuse as main transcriptc.31C>T p.Pro11Ser missense_variant 2/115 ENSP00000484215 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152178
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000260
AC:
6
AN:
230606
Hom.:
0
AF XY:
0.0000314
AC XY:
4
AN XY:
127452
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000149
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000971
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000413
AC:
6
AN:
1454542
Hom.:
0
Cov.:
35
AF XY:
0.00000553
AC XY:
4
AN XY:
723132
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000135
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
AF:
0.00000657
AC:
1
AN:
152178
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74340
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00000858
AC:
1

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 GeneticsMar 26, 2024The c.31C>T (p.P11S) alteration is located in exon 2 (coding exon 1) of the DLGAP2 gene. This alteration results from a C to T substitution at nucleotide position 31, causing the proline (P) at amino acid position 11 to be replaced by a serine (S). 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
Benign
0.067
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.68
CADD
Benign
8.1
DANN
Benign
0.96
DEOGEN2
Benign
0.0037
T;T;T
Eigen
Benign
-0.72
Eigen_PC
Benign
-0.62
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Benign
0.84
T;T;T
M_CAP
Benign
0.0058
T
MetaRNN
Benign
0.053
T;T;T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
1.0
.;L;.
MutationTaster
Benign
0.97
N
PrimateAI
Benign
0.45
T
REVEL
Benign
0.031
Sift4G
Benign
0.69
.;.;T
Polyphen
0.0040
.;B;.
Vest4
0.36
MutPred
0.14
.;Loss of catalytic residue at P90 (P = 0.0056);.;
MVP
0.12
MPC
0.10
ClinPred
0.062
T
GERP RS
3.0
Varity_R
0.024
gMVP
0.084

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: rs767482808; hg19: chr8-1496890; API