21-40044102-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP2

The NM_001389.5(DSCAM):ā€‹c.5359A>Gā€‹(p.Ser1787Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,198 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 33)

Consequence

DSCAM
NM_001389.5 missense

Scores

1
9
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.92
Variant links:
Genes affected
DSCAM (HGNC:3039): (DS cell adhesion molecule) This gene is a member of the immunoglobulin superfamily of cell adhesion molecules (Ig-CAMs), and is involved in human central and peripheral nervous system development. This gene is a candidate for Down syndrome and congenital heart disease (DSCHD). A gene encoding a similar Ig-CAM protein is located on chromosome 11. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Oct 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), DSCAM. . Gene score misZ 3.2228 (greater than the threshold 3.09). Trascript score misZ 4.4297 (greater than threshold 3.09). GenCC has associacion of gene with autism spectrum disorder.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DSCAMNM_001389.5 linkuse as main transcriptc.5359A>G p.Ser1787Gly missense_variant 31/33 ENST00000400454.6 NP_001380.2
DSCAMNM_001271534.3 linkuse as main transcriptc.5359A>G p.Ser1787Gly missense_variant 31/33 NP_001258463.1
DSCAMXM_017028281.2 linkuse as main transcriptc.4651A>G p.Ser1551Gly missense_variant 28/30 XP_016883770.1
DSCAMNR_073202.3 linkuse as main transcriptn.5665A>G non_coding_transcript_exon_variant 31/33

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DSCAMENST00000400454.6 linkuse as main transcriptc.5359A>G p.Ser1787Gly missense_variant 31/331 NM_001389.5 ENSP00000383303 P1O60469-1
DSCAMENST00000404019.2 linkuse as main transcriptc.4615A>G p.Ser1539Gly missense_variant 27/291 ENSP00000385342
DSCAMENST00000617870.4 linkuse as main transcriptc.4864A>G p.Ser1622Gly missense_variant 28/305 ENSP00000478698

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152198
Hom.:
0
Cov.:
33
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
31
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152198
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74360
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000370
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 14, 2022The c.5359A>G (p.S1787G) alteration is located in exon 31 (coding exon 31) of the DSCAM gene. This alteration results from a A to G substitution at nucleotide position 5359, causing the serine (S) at amino acid position 1787 to be replaced by a glycine (G). 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
0.18
BayesDel_addAF
Uncertain
0.084
D
BayesDel_noAF
Benign
-0.12
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.18
T;.;.
Eigen
Uncertain
0.57
Eigen_PC
Uncertain
0.61
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.94
D;D;D
M_CAP
Benign
0.043
D
MetaRNN
Uncertain
0.54
D;D;D
MetaSVM
Benign
-0.45
T
MutationAssessor
Benign
0.90
L;.;.
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.75
T
PROVEAN
Benign
-2.0
N;.;N
REVEL
Benign
0.26
Sift
Uncertain
0.012
D;.;D
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
0.98
D;.;.
Vest4
0.64
MVP
0.72
MPC
1.4
ClinPred
0.97
D
GERP RS
5.5
Varity_R
0.32
gMVP
0.59

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: rs2088803487; hg19: chr21-41416029; COSMIC: COSV68023371; API