rs955793443

chr3-47120894-C-Achr3-47120894-C-Gchr3-47120894-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP2

The NM_014159.7(SETD2):c.3742G>T(p.Gly1248Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. 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. G1248S) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SETD2 NM_014159.7 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.02

Genes affected

SETD2 (HGNC:18420): (SET domain containing 2, histone lysine methyltransferase) Huntington's disease (HD), a neurodegenerative disorder characterized by loss of striatal neurons, is caused by an expansion of a polyglutamine tract in the HD protein huntingtin. This gene encodes a protein belonging to a class of huntingtin interacting proteins characterized by WW motifs. This protein is a histone methyltransferase that is specific for lysine-36 of histone H3, and methylation of this residue is associated with active chromatin. This protein also contains a novel transcriptional activation domain and has been found associated with hyperphosphorylated RNA polymerase II. [provided by RefSeq, Aug 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, SETD2

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SETD2	NM_014159.7	c.3742G>T	p.Gly1248Cys	missense_variant	3/21	ENST00000409792.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SETD2	ENST00000409792.4	c.3742G>T	p.Gly1248Cys	missense_variant	3/21	5	NM_014159.7	P3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Uncertain	0.10	D
BayesDel_noAF	Benign	-0.090
Cadd	Benign	17
Dann	Uncertain	0.98
DEOGEN2	Uncertain	0.42	T;T
Eigen	Benign	-0.29
Eigen_PC	Benign	-0.28
FATHMM_MKL	Uncertain	0.80	D
LIST_S2	Benign	0.74	T;T
M_CAP	Uncertain	0.17	D
MetaRNN	Uncertain	0.55	D;D
MetaSVM	Uncertain	-0.19	T
MutationAssessor	Uncertain	2.3	M;.
MutationTaster	Benign	1.0	D
PrimateAI	Benign	0.37	T
PROVEAN	Uncertain	-3.6	D;D
REVEL	Uncertain	0.33
Sift	Pathogenic	0.0	D;D
Sift4G	Uncertain	0.0050	D;.
Polyphen		0.78	P;.
Vest4		0.27
MutPred		0.61		Gain of glycosylation at S1251 (P = 0.0402);.;
MVP		0.66
MPC		0.86
ClinPred		0.98	D
GERP RS		1.1
Varity_R		0.62
gMVP		0.30

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: chr3-47162384;