Genetic Variant SND1:p.Ala5Ala (chr7-127652388-G-C) – ACMG Classification: Benign (-15 pts)

Variant summary

Our verdict is Benign. The variant received -15 ACMG points: 0P and 15B. BP4_ModerateBP6_Very_StrongBP7BS2

The NM_014390.4(SND1):c.15G>C(p.Ala5Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000657 in 1,598,812 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00075 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00065 ( 5 hom. )

Consequence

SND1
NM_014390.4 synonymous

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 1.16

Publications

0 publications found

Variant links:

Genes affected

SND1 (HGNC:30646): (staphylococcal nuclease and tudor domain containing 1) This gene encodes a transcriptional co-activator that interacts with the acidic domain of Epstein-Barr virus nuclear antigen 2 (EBNA 2), a transcriptional activator that is required for B-lymphocyte transformation. Other transcription factors that interact with this protein are signal transducers and activators of transcription, STATs. This protein is also thought to be essential for normal cell growth. A similar protein in mammals and other organisms is a component of the RNA-induced silencing complex (RISC). [provided by RefSeq, Jul 2016]

SND1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -15 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.32).

BP6

Variant 7-127652388-G-C is Benign according to our data. Variant chr7-127652388-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 726681.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=1.16 with no splicing effect.

BS2

High AC in GnomAd4 at 115 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SND1	NM_014390.4 link	c.15G>C	p.Ala5Ala	synonymous_variant	Exon 1 of 24	ENST00000354725.8	NP_055205.2	Q7KZF4A0A140VK49
SND1	XM_017011987.3 link	c.15G>C	p.Ala5Ala	synonymous_variant	Exon 1 of 17		XP_016867476.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SND1	ENST00000354725.8 link	c.15G>C	p.Ala5Ala	synonymous_variant	Exon 1 of 24	1	NM_014390.4	ENSP00000346762.3		Q7KZF4
SND1	ENST00000463020.1 link	n.195G>C		non_coding_transcript_exon_variant	Exon 1 of 2	2

Frequencies

GnomAD3 genomes

AF:

0.000756

AC:

115

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00177

Gnomad ASJ

AF:

0.00231

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.000955

Gnomad OTH

AF:

0.00143

GnomAD2 exomes

AF:

0.000911

AC:

200

AN:

219532

AF XY:

0.00104

show subpopulations

Gnomad AFR exome

AF:

0.0000763

Gnomad AMR exome

AF:

0.000796

Gnomad ASJ exome

AF:

0.00181

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000555

Gnomad NFE exome

AF:

0.00105

Gnomad OTH exome

AF:

0.00185

GnomAD4 exome

AF:

0.000646

AC:

935

AN:

1446484

Hom.:

Cov.:

AF XY:

0.000709

AC XY:

509

AN XY:

717872

show subpopulations

African (AFR)

AF:

0.0000300

AC:

AN:

33334

American (AMR)

AF:

0.000902

AC:

AN:

42116

Ashkenazi Jewish (ASJ)

AF:

0.00187

AC:

AN:

25698

East Asian (EAS)

AF:

0.00

AC:

AN:

39042

South Asian (SAS)

AF:

0.00116

AC:

AN:

83508

European-Finnish (FIN)

AF:

0.0000385

AC:

AN:

51946

Middle Eastern (MID)

AF:

0.00574

AC:

AN:

5748

European-Non Finnish (NFE)

AF:

0.000591

AC:

653

AN:

1105318

Other (OTH)

AF:

0.00105

AC:

AN:

59774

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.474

Heterozygous variant carriers

137

182

228

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000755

AC:

115

AN:

152328

Hom.:

Cov.:

AF XY:

0.000685

AC XY:

AN XY:

74492

show subpopulations

African (AFR)

AF:

0.000144

AC:

AN:

41584

American (AMR)

AF:

0.00176

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00231

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.000829

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.0000942

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00680

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000941

AC:

AN:

68028

Other (OTH)

AF:

0.00142

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000983

Hom.:

Bravo

AF:

0.000695

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Oct 23, 2018

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.32

CADD

Benign

(source)

DANN

Benign

0.87

PhyloP100

1.2

PromoterAI

0.022

Neutral

(source)

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

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chr7-127652388-G-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over