NM_022455.5:c.4892A>T

Variant names:

• chr5-177257077-A-T
• rs201857437
• NM_022455.5:c.4892A>T

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM1 PM2

The NM_022455.5(NSD1):​c.4892A>T​(p.Lys1631Met) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K1631R) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 31)
• Consequence: NSD1 NM_022455.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.67
• Publications: 0 publications found

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]

NSD1 Gene-Disease associations (from GenCC):

• Beckwith-Wiedemann syndrome due to NSD1 mutation

  Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
• Sotos syndrome

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P, ClinGen
• Sotos syndrome 1

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM1: In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 7 uncertain in NM_022455.5
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_022455.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NSD1	NM_022455.5	MANE Select	c.4892A>T	p.Lys1631Met	missense	Exon 13 of 23	NP_071900.2
	NSD1	NM_001409301.1		c.4892A>T	p.Lys1631Met	missense	Exon 13 of 23	NP_001396230.1
	NSD1	NM_001409302.1		c.4892A>T	p.Lys1631Met	missense	Exon 13 of 23	NP_001396231.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NSD1	ENST00000439151.7	TSL:1 MANE Select	c.4892A>T	p.Lys1631Met	missense	Exon 13 of 23	ENSP00000395929.2
	NSD1	ENST00000347982.9	TSL:1	c.4019A>T	p.Lys1340Met	missense	Exon 14 of 24	ENSP00000343209.5
	NSD1	ENST00000687453.1		c.4583A>T	p.Lys1528Met	missense	Exon 10 of 20	ENSP00000508426.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.92
BayesDel_addAF	Pathogenic	0.21	D
BayesDel_noAF	Uncertain	0.060
CADD	Pathogenic	27
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.54	D
Eigen	Uncertain	0.60
Eigen_PC	Uncertain	0.59
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.94	D
M_CAP	Pathogenic	0.37	D
MetaRNN	Uncertain	0.74	D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Benign	1.6	L
PhyloP100		3.7
PrimateAI	Uncertain	0.70	T
PROVEAN	Uncertain	-4.3	D
REVEL	Pathogenic	0.80
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.54
MutPred		0.65		Loss of methylation at K1631 (P = 0.0072)
MVP		0.92
MPC		2.0
ClinPred		1.0	D
GERP RS		5.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.32
gMVP		0.82
Mutation Taster		=69/31	polymorphism

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

Other links and lift over

dbSNP: rs201857437; hg19: chr5-176684078;