4-1900663-T-G

Position:

• chr4-1900663-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_001042424.3(NSD2):​c.9T>G​(p.Phe3Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000021 in 1,426,006 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: NSD2 NM_001042424.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.0700

Genes affected

NSD2 (HGNC:12766): (nuclear receptor binding SET domain protein 2) This gene encodes a protein that contains four domains present in other developmental proteins: a PWWP domain, an HMG box, a SET domain, and a PHD-type zinc finger. It is expressed ubiquitously in early development. Wolf-Hirschhorn syndrome (WHS) is a malformation syndrome associated with a hemizygous deletion of the distal short arm of chromosome 4. This gene maps to the 165 kb WHS critical region and has also been involved in the chromosomal translocation t(4;14)(p16.3;q32.3) in multiple myelomas. Alternative splicing of this gene results in multiple transcript variants encoding different isoforms. Some transcript variants are nonsense-mediated mRNA (NMD) decay candidates, hence not represented as reference sequences. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, NSD2
• BP4: Computational evidence support a benign effect (MetaRNN=0.10047877).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NSD2	NM_001042424.3	c.9T>G	p.Phe3Leu	missense_variant	2/22	ENST00000508803.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NSD2	ENST00000508803.6	c.9T>G	p.Phe3Leu	missense_variant	2/22	1	NM_001042424.3	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000210 AC: 3 AN: 1426006 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 705416

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000255

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.0000340

GnomAD4 genome Cov.: 32

Bravo AF: 0.0000151

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Eurofins Ntd Llc (ga)

Mar 21, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.39
BayesDel_addAF	Uncertain	0.10	D
BayesDel_noAF	Benign	-0.090
CADD	Benign	13
DANN	Benign	0.96
DEOGEN2	Benign	0.14	T;.;.;.;T;T;.;T;.;T;.;.
Eigen	Benign	-0.72
Eigen_PC	Benign	-0.61
FATHMM_MKL	Uncertain	0.81	D
M_CAP	Benign	0.046	D
MetaRNN	Benign	0.10	T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM	Benign	-0.35	T
MutationAssessor	Benign	0.63	N;.;N;.;N;N;N;N;N;.;N;N
MutationTaster	Benign	0.68	N;N;N;N;N;N;N;N;N
PrimateAI	Benign	0.42	T
PROVEAN	Benign	-0.77	N;D;N;D;N;N;N;N;N;N;N;N
REVEL	Benign	0.11
Sift	Pathogenic	0.0	D;D;D;D;D;D;D;D;D;D;D;D
Sift4G	Pathogenic	0.0	D;D;T;T;D;D;T;D;T;T;T;T
Polyphen		0.0	B;.;B;.;B;B;B;B;B;.;B;B
Vest4		0.30
MutPred		0.22		Gain of glycosylation at S4 (P = 0.0419);Gain of glycosylation at S4 (P = 0.0419);Gain of glycosylation at S4 (P = 0.0419);Gain of glycosylation at S4 (P = 0.0419);Gain of glycosylation at S4 (P = 0.0419);Gain of glycosylation at S4 (P = 0.0419);Gain of glycosylation at S4 (P = 0.0419);Gain of glycosylation at S4 (P = 0.0419);Gain of glycosylation at S4 (P = 0.0419);Gain of glycosylation at S4 (P = 0.0419);Gain of glycosylation at S4 (P = 0.0419);Gain of glycosylation at S4 (P = 0.0419);
MVP		0.41
MPC		0.35
ClinPred		0.13	T
GERP RS		-1.5
RBP_binding_hub_radar		0.97
RBP_regulation_power_radar		2.7
Varity_R		0.22
gMVP		0.19

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: rs917196718; hg19: chr4-1902390;