7-127652422-C-A

Variant names:

• chr7-127652422-C-A
• NM_014390.4:c.49C>A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_014390.4(SND1):​c.49C>A​(p.Pro17Thr) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: SND1 NM_014390.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.04

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.2190417).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SND1	NM_014390.4	c.49C>A	p.Pro17Thr	missense_variant	Exon 1 of 24	ENST00000354725.8	NP_055205.2
SND1	XM_017011987.3	c.49C>A	p.Pro17Thr	missense_variant	Exon 1 of 17		XP_016867476.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SND1	ENST00000354725.8	c.49C>A	p.Pro17Thr	missense_variant	Exon 1 of 24	1	NM_014390.4	ENSP00000346762.3
SND1	ENST00000463020.1	n.229C>A		non_coding_transcript_exon_variant	Exon 1 of 2	2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

May 30, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.49C>A (p.P17T) alteration is located in exon 1 (coding exon 1) of the SND1 gene. This alteration results from a C to A substitution at nucleotide position 49, causing the proline (P) at amino acid position 17 to be replaced by a threonine (T). 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	0.10
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.41
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.083	T
Eigen	Benign	-0.092
Eigen_PC	Benign	0.091
FATHMM_MKL	Benign	0.73	D
LIST_S2	Benign	0.79	T
M_CAP	Benign	0.0066	T
MetaRNN	Benign	0.22	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.5	L
PrimateAI	Uncertain	0.77	T
PROVEAN	Uncertain	-2.9	D
REVEL	Benign	0.029
Sift	Benign	0.047	D
Sift4G	Uncertain	0.059	T
Polyphen		0.038	B
Vest4		0.48
MutPred		0.37		Gain of sheet (P = 0.0125);
MVP		0.30
MPC		0.70
ClinPred		0.98	D
GERP RS		4.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.7
Varity_R		0.61
gMVP		0.34

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr7-127292476;