Genetic Variant DCST2:p.Asn636Asn (chr1-155023420-A-G) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP7

The NM_144622.3(DCST2):c.1908T>C(p.Asn636Asn) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000212 in 1,605,810 control chromosomes in the GnomAD database, including 1 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 0.000039 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

DCST2
NM_144622.3 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.32

Publications

0 publications found

Variant links:

Genes affected

DCST2 (HGNC:26562): (DC-STAMP domain containing 2) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

DCST2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.68).

BP7

Synonymous conserved (PhyloP=1.32 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_144622.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DCST2	NM_144622.3	MANE Select	c.1908T>C	p.Asn636Asn	synonymous	Exon 13 of 15	NP_653223.2	Q5T1A1-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DCST2	ENST00000368424.4	TSL:1 MANE Select	c.1908T>C	p.Asn636Asn	synonymous	Exon 13 of 15	ENSP00000357409.3	Q5T1A1-1
DCST2	ENST00000368423.5	TSL:2	n.1660T>C		non_coding_transcript_exon	Exon 8 of 10
DCST2	ENST00000467991.2	TSL:4	n.*152T>C		non_coding_transcript_exon	Exon 3 of 5	ENSP00000437330.2	H0YF62

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152152

Hom.:

Cov.:

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:

0.00116

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

GnomAD2 exomes

AF:

0.000132

AC:

AN:

234044

AF XY:

0.000134

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00159

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000284

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000193

AC:

AN:

1453540

Hom.:

Cov.:

AF XY:

0.0000263

AC XY:

AN XY:

722266

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33370

American (AMR)

AF:

0.00

AC:

AN:

43332

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25874

East Asian (EAS)

AF:

0.000304

AC:

AN:

39470

South Asian (SAS)

AF:

0.00

AC:

AN:

84860

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52784

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.0000135

AC:

AN:

1107988

Other (OTH)

AF:

0.0000166

AC:

AN:

60106

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152270

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74460

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

41548

American (AMR)

AF:

0.00

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00116

AC:

AN:

5176

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10604

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68020

Other (OTH)

AF:

0.00

AC:

AN:

2114

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.0132501), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.400

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000680

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.68

CADD

Benign

5.2

(source)

DANN

Benign

0.78

PhyloP100

1.3

Mutation Taster

=100/0

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over