21-40083927-G-A

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP7BA1

The NM_001389.5(DSCAM):​c.4212C>T​(p.Asn1404=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0517 in 1,612,644 control chromosomes in the GnomAD database, including 2,564 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.063 ( 413 hom., cov: 33)
Exomes 𝑓: 0.051 ( 2151 hom. )

Consequence

DSCAM
NM_001389.5 synonymous

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.06
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP7
Synonymous conserved (PhyloP=-1.06 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.112 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DSCAMNM_001389.5 linkuse as main transcriptc.4212C>T p.Asn1404= synonymous_variant 24/33 ENST00000400454.6
DSCAMNM_001271534.3 linkuse as main transcriptc.4212C>T p.Asn1404= synonymous_variant 24/33
DSCAMXM_017028281.2 linkuse as main transcriptc.3504C>T p.Asn1168= synonymous_variant 21/30
DSCAMNR_073202.3 linkuse as main transcriptn.4709C>T non_coding_transcript_exon_variant 24/33

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DSCAMENST00000400454.6 linkuse as main transcriptc.4212C>T p.Asn1404= synonymous_variant 24/331 NM_001389.5 P1O60469-1
DSCAMENST00000404019.2 linkuse as main transcriptc.3468C>T p.Asn1156= synonymous_variant 20/291
DSCAMENST00000617870.4 linkuse as main transcriptc.3717C>T p.Asn1239= synonymous_variant 21/305

Frequencies

GnomAD3 genomes
AF:
0.0627
AC:
9532
AN:
152106
Hom.:
412
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.104
Gnomad AMI
AF:
0.0197
Gnomad AMR
AF:
0.0422
Gnomad ASJ
AF:
0.0222
Gnomad EAS
AF:
0.121
Gnomad SAS
AF:
0.0214
Gnomad FIN
AF:
0.0196
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.0506
Gnomad OTH
AF:
0.0473
GnomAD3 exomes
AF:
0.0452
AC:
11228
AN:
248396
Hom.:
427
AF XY:
0.0437
AC XY:
5894
AN XY:
134794
show subpopulations
Gnomad AFR exome
AF:
0.102
Gnomad AMR exome
AF:
0.0252
Gnomad ASJ exome
AF:
0.0205
Gnomad EAS exome
AF:
0.120
Gnomad SAS exome
AF:
0.0149
Gnomad FIN exome
AF:
0.0196
Gnomad NFE exome
AF:
0.0473
Gnomad OTH exome
AF:
0.0408
GnomAD4 exome
AF:
0.0506
AC:
73827
AN:
1460420
Hom.:
2151
Cov.:
30
AF XY:
0.0493
AC XY:
35796
AN XY:
726550
show subpopulations
Gnomad4 AFR exome
AF:
0.102
Gnomad4 AMR exome
AF:
0.0265
Gnomad4 ASJ exome
AF:
0.0199
Gnomad4 EAS exome
AF:
0.0920
Gnomad4 SAS exome
AF:
0.0146
Gnomad4 FIN exome
AF:
0.0206
Gnomad4 NFE exome
AF:
0.0535
Gnomad4 OTH exome
AF:
0.0539
GnomAD4 genome
AF:
0.0627
AC:
9545
AN:
152224
Hom.:
413
Cov.:
33
AF XY:
0.0609
AC XY:
4533
AN XY:
74418
show subpopulations
Gnomad4 AFR
AF:
0.104
Gnomad4 AMR
AF:
0.0422
Gnomad4 ASJ
AF:
0.0222
Gnomad4 EAS
AF:
0.120
Gnomad4 SAS
AF:
0.0212
Gnomad4 FIN
AF:
0.0196
Gnomad4 NFE
AF:
0.0506
Gnomad4 OTH
AF:
0.0473
Alfa
AF:
0.0513
Hom.:
331
Bravo
AF:
0.0663
Asia WGS
AF:
0.0900
AC:
314
AN:
3478
EpiCase
AF:
0.0431
EpiControl
AF:
0.0455

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
0.11
DANN
Benign
0.51

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs2297263; hg19: chr21-41455854; COSMIC: COSV68021707; API