rs73721294

Positions:

• chr7-128081882-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_014390.4(SND1):​c.2110+381C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00698 in 539,510 control chromosomes in the GnomAD database, including 128 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 0.019 (103 hom., cov: 33)
  • Exomes 𝑓: 0.0024 (25 hom.)
• Consequence: SND1 NM_014390.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.184

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]

MIR593 (HGNC:32849): (microRNA 593) microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0629 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SND1	NM_014390.4	c.2110+381C>T		intron_variant		ENST00000354725.8	NP_055205.2
MIR593	NR_030324.1	n.22C>T		non_coding_transcript_exon_variant	1/1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SND1	ENST00000354725.8	c.2110+381C>T		intron_variant		1	NM_014390.4	ENSP00000346762	P1
MIR593	ENST00000384856.1	n.22C>T		mature_miRNA_variant	1/1
SND1	ENST00000486037.1	c.568+381C>T		intron_variant		3		ENSP00000419327
SND1	ENST00000470463.1	n.494+381C>T		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes AF: 0.0187 AC: 2839 AN: 152182 Hom.: 101 Cov.: 33

Gnomad AFR AF: 0.0649

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00772

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000118

Gnomad OTH AF: 0.0105

GnomAD3 exomes AF: 0.00500 AC: 1256 AN: 251058 Hom.: 37 AF XY: 0.00366 AC XY: 497 AN XY: 135904

Gnomad AFR exome AF: 0.0690

Gnomad AMR exome AF: 0.00321

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000131

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000106

Gnomad OTH exome AF: 0.00179

GnomAD4 exome AF: 0.00237 AC: 919 AN: 387210 Hom.: 25 Cov.: 0 AF XY: 0.00184 AC XY: 405 AN XY: 220170

Gnomad4 AFR exome AF: 0.0666

Gnomad4 AMR exome AF: 0.00310

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000120

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.000123

Gnomad4 OTH exome AF: 0.00323

GnomAD4 genome AF: 0.0187 AC: 2846 AN: 152300 Hom.: 103 Cov.: 33 AF XY: 0.0177 AC XY: 1321 AN XY: 74480

Gnomad4 AFR AF: 0.0649

Gnomad4 AMR AF: 0.00771

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000118

Gnomad4 OTH AF: 0.0104

Alfa AF: 0.00907 Hom.: 11

Bravo AF: 0.0211

Asia WGS AF: 0.00346 AC: 12 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	4.4
DANN	Benign	0.58

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

LitVar

Other links and lift over

dbSNP: rs73721294; hg19: chr7-127721934;