chr21-40042661-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001389.5(DSCAM):​c.5396G>A​(p.Ser1799Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000771 in 1,296,242 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 7.7e-7 ( 0 hom. )

Consequence

DSCAM
NM_001389.5 missense

Scores

1
3
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.37

Publications

0 publications found
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]
DSCAM Gene-Disease associations (from GenCC):
  • autism spectrum disorder
    Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.19837171).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001389.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DSCAM
NM_001389.5
MANE Select
c.5396G>Ap.Ser1799Asn
missense
Exon 32 of 33NP_001380.2
DSCAM
NM_001271534.3
c.5396G>Ap.Ser1799Asn
missense
Exon 32 of 33NP_001258463.1
DSCAM
NR_073202.3
n.5702G>A
non_coding_transcript_exon
Exon 32 of 33

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DSCAM
ENST00000400454.6
TSL:1 MANE Select
c.5396G>Ap.Ser1799Asn
missense
Exon 32 of 33ENSP00000383303.1O60469-1
DSCAM
ENST00000404019.2
TSL:1
c.4652G>Ap.Ser1551Asn
missense
Exon 28 of 29ENSP00000385342.2Q8WY19
DSCAM
ENST00000617870.4
TSL:5
c.4901G>Ap.Ser1634Asn
missense
Exon 29 of 30ENSP00000478698.1A0A087WUI7

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
7.71e-7
AC:
1
AN:
1296242
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
634744
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
29168
American (AMR)
AF:
0.00
AC:
0
AN:
36336
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
22674
East Asian (EAS)
AF:
0.00
AC:
0
AN:
32988
South Asian (SAS)
AF:
0.00
AC:
0
AN:
52932
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
43936
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5216
European-Non Finnish (NFE)
AF:
9.80e-7
AC:
1
AN:
1020302
Other (OTH)
AF:
0.00
AC:
0
AN:
52690
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.00
Hom.:
0

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.52
CADD
Uncertain
25
DANN
Benign
0.50
DEOGEN2
Benign
0.044
T
Eigen
Uncertain
0.27
Eigen_PC
Uncertain
0.35
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Benign
0.80
T
M_CAP
Benign
0.010
T
MetaRNN
Benign
0.20
T
MetaSVM
Benign
-0.93
T
MutationAssessor
Benign
0.90
L
PhyloP100
3.4
PrimateAI
Pathogenic
0.83
D
PROVEAN
Benign
1.2
N
REVEL
Benign
0.18
Sift
Benign
1.0
T
Sift4G
Benign
0.78
T
Polyphen
0.99
D
Vest4
0.33
MutPred
0.13
Loss of phosphorylation at S1799 (P = 0.0017)
MVP
0.65
MPC
0.50
ClinPred
0.76
D
GERP RS
5.3
Varity_R
0.15
gMVP
0.65
Mutation Taster
=47/53
disease causing

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: rs2088774781; hg19: chr21-41414588; API