7-127701188-T-G

Variant names:

Variant summary

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

The NM_014390.4(SND1):c.454T>G(p.Cys152Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,782 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C152R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SND1
NM_014390.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.30

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:

Genome browser will be placed here

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=0.22536305).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SND1	NM_014390.4 link	c.454T>G	p.Cys152Gly	missense_variant	Exon 5 of 24	ENST00000354725.8	NP_055205.2	Q7KZF4A0A140VK49
SND1	XM_017011987.3 link	c.454T>G	p.Cys152Gly	missense_variant	Exon 5 of 17		XP_016867476.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SND1	ENST00000354725.8 link	c.454T>G	p.Cys152Gly	missense_variant	Exon 5 of 24	1	NM_014390.4	ENSP00000346762.3	Q7KZF4
SND1	ENST00000468621.5 link	n.469T>G		non_coding_transcript_exon_variant	Exon 5 of 5	4
SND1	ENST00000483503.5 link	n.349T>G		non_coding_transcript_exon_variant	Exon 4 of 6	5
SND1	ENST00000492772.1 link	n.261T>G		non_coding_transcript_exon_variant	Exon 4 of 6	4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000796

AC:

AN:

251232

AF XY:

0.00000737

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461782

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727182

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.0000224

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111926

Other (OTH)

AF:

0.0000166

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.458

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 19, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.454T>G (p.C152G) alteration is located in exon 5 (coding exon 5) of the SND1 gene. This alteration results from a T to G substitution at nucleotide position 454, causing the cysteine (C) at amino acid position 152 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

0.15

BayesDel_addAF

Benign

-0.070

BayesDel_noAF

Benign

-0.34

CADD

Uncertain

(source)

DANN

Benign

0.97

DEOGEN2

Benign

0.26

Eigen

Benign

-0.071

Eigen_PC

Benign

0.15

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.94

M_CAP

Benign

0.0051

MetaRNN

Benign

0.23

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.69

PhyloP100

1.3

PrimateAI

Uncertain

0.60

PROVEAN

Uncertain

-3.7

REVEL

Benign

0.18

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0030

Polyphen

0.010

Vest4

0.49

MutPred

0.50

Loss of stability (P = 0.0421);

MVP

0.31

MPC

0.86

ClinPred

0.64

GERP RS

6.2

Varity_R

0.76

gMVP

0.78

Mutation Taster

=55/45

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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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7-127701188-T-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over