chr5-177280796-C-T

Variant names:

• chr5-177280796-C-T
• rs886041219
• NM_022455.5:c.5854C>T

Variant summary

Our verdict is Pathogenic. Variant got 17 ACMG points: 17P and 0B. PM1 PM2 PP2 PP3_Strong PP5_Very_Strong

The NM_022455.5(NSD1):​c.5854C>T​(p.Arg1952Trp) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: NSD1 NM_022455.5 missense
• Clinical Significance: Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:5
• Conservation: PhyloP100: 3.59

Genes affected

NSD1 (HGNC:14234): (nuclear receptor binding SET domain protein 1) This gene encodes a protein containing a SET domain, 2 LXXLL motifs, 3 nuclear translocation signals (NLSs), 4 plant homeodomain (PHD) finger regions, and a proline-rich region. The encoded protein enhances androgen receptor (AR) transactivation, and this enhancement can be increased further in the presence of other androgen receptor associated coregulators. This protein may act as a nucleus-localized, basic transcriptional factor and also as a bifunctional transcriptional regulator. Mutations of this gene have been associated with Sotos syndrome and Weaver syndrome. One version of childhood acute myeloid leukemia is the result of a cryptic translocation with the breakpoints occurring within nuclear receptor-binding Su-var, enhancer of zeste, and trithorax domain protein 1 on chromosome 5 and nucleoporin, 98-kd on chromosome 11. Multiple transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Sep 2018]

ACMG classification

Verdict is Pathogenic. Variant got 17 ACMG points.

• PM1: In a domain SET (size 117) in uniprot entity NSD1_HUMAN there are 17 pathogenic changes around while only 0 benign (100%) in NM_022455.5
• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the NSD1 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 137 curated pathogenic missense variants (we use a threshold of 10). The gene has 153 curated benign missense variants. Gene score misZ: 3.4113 (above the threshold of 3.09). Trascript score misZ: 5.7368 (above the threshold of 3.09). GenCC associations: The gene is linked to Beckwith-Wiedemann syndrome, Weaver syndrome, Sotos syndrome 1, Sotos syndrome.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.965
• PP5: Variant 5-177280796-C-T is Pathogenic according to our data. Variant chr5-177280796-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 279858.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr5-177280796-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NSD1	NM_022455.5	c.5854C>T	p.Arg1952Trp	missense_variant	Exon 18 of 23	ENST00000439151.7	NP_071900.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NSD1	ENST00000439151.7	c.5854C>T	p.Arg1952Trp	missense_variant	Exon 18 of 23	1	NM_022455.5	ENSP00000395929.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:5

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Pathogenic:2

Mar 15, 2016

GeneDx

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The R1952W pathogenic variant in the NSD1 gene has been reported previously in association with Sotos syndrome(Tatton-Brown et al., 2005; Saugier-Veber et al., 2007). Functional studies indicate that R1952W impairs the histonelysine methyltransferase activity of the NSD1 enzyme (Qiao et al., 2011). R1952W was not observed inapproximately 6,500 individuals of European and African American ancestry in the NHLBI Exome SequencingProject, indicating it is not a common benign variant in these populations. This substitution occurs at a highlyconserved position that is predicted to be within the SET domain of the NSD1 protein. In silico analysis predicts thisvariant is probably damaging to the protein structure/function. -

Feb 08, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 1952 of the NSD1 protein (p.Arg1952Trp). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with clinical features of Sotos syndrome (PMID: 15942875, 17565729, 22924495, 34033256). In at least one individual the variant was observed to be de novo. ClinVar contains an entry for this variant (Variation ID: 279858). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt NSD1 protein function with a positive predictive value of 95%. Experimental studies have shown that this missense change affects NSD1 function (PMID: 21196496, 24412544). For these reasons, this variant has been classified as Pathogenic. -

Sotos syndrome Pathogenic:2

Jul 15, 2021

Genome-Nilou Lab

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Nov 01, 2016

Center for Human Genetics, Inc, Center for Human Genetics, Inc

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

NSD1-related disorder Pathogenic:1

Nov 21, 2023

PreventionGenetics, part of Exact Sciences

Significance: Likely pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

The NSD1 c.5854C>T variant is predicted to result in the amino acid substitution p.Arg1952Trp. This variant has been reported in several individuals with suspected Sotos syndrome; in at least one individual, this variant was found to be de novo (Tatton-Brown et al. 2005. PubMed ID: 15942875; Fortin et al. 2021. PubMed ID: 34033256; Pohjola et al. 2012. PubMed ID: 22924495). This variant has not been reported in a large population database (http://gnomad.broadinstitute.org), indicating this variant is rare. This variant is interpreted as likely pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.45	D
BayesDel_noAF	Pathogenic	0.41
CADD	Pathogenic	29
DANN	Pathogenic	1.0
DEOGEN2	Uncertain	0.69	.;D;.
Eigen	Uncertain	0.56
Eigen_PC	Uncertain	0.46
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Pathogenic	0.99	D;D;.
M_CAP	Pathogenic	0.53	D
MetaRNN	Pathogenic	0.96	D;D;D
MetaSVM	Pathogenic	0.99	D
MutationAssessor	Pathogenic	3.4	.;M;.
PrimateAI	Pathogenic	0.85	D
PROVEAN	Pathogenic	-5.9	D;D;D
REVEL	Pathogenic	0.95
Sift	Pathogenic	0.0	D;D;D
Sift4G	Pathogenic	0.0010	D;D;D
Polyphen		1.0	D;D;D
Vest4		0.71
MutPred		0.87		.;Gain of catalytic residue at L1950 (P = 0.0101);.;
MVP		0.99
MPC		2.6
ClinPred		0.99	D
GERP RS		3.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.94
gMVP		0.94

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.12		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: rs886041219; hg19: chr5-176707797; COSMIC: COSV61771898; COSMIC: COSV61771898;