chr3-47122033-T-G

Variant names:

• chr3-47122033-T-G
• rs201752182
• NM_014159.7:c.2603A>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The ENST00000409792.4(SETD2):​c.2603A>C​(p.Asp868Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. 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. D868G) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SETD2 ENST00000409792.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.31
• Publications: 0 publications found

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]

SETD2 Gene-Disease associations (from GenCC):

• Luscan-Lumish syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
• SETD2-related neurodevelopmental disorder without or with macrocephaly/overgrowth

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• Rabin-Pappas syndrome

  Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
• SETD2-related microcephaly-severe intellectual disability-multiple congenital anomalies syndrome

  Inheritance: AD Classification: STRONG Submitted by: ClinGen
• Sotos syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• intellectual developmental disorder, autosomal dominant 70

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ENSG00000296084 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.13502684).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000409792.4. 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
	SETD2	NM_014159.7	MANE Select	c.2603A>C	p.Asp868Ala	missense	Exon 3 of 21	NP_054878.5
	SETD2	NM_001349370.3		c.2471A>C	p.Asp824Ala	missense	Exon 2 of 20	NP_001336299.1
	SETD2	NR_146158.3		n.2792A>C		non_coding_transcript_exon	Exon 3 of 22

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SETD2	ENST00000409792.4	TSL:5 MANE Select	c.2603A>C	p.Asp868Ala	missense	Exon 3 of 21	ENSP00000386759.3
	SETD2	ENST00000330022.11	TSL:1	n.2216A>C		non_coding_transcript_exon	Exon 1 of 19	ENSP00000332415.7
	SETD2	ENST00000638947.2	TSL:5	c.2471A>C	p.Asp824Ala	missense	Exon 2 of 20	ENSP00000491413.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Uncertain	0.093	D
BayesDel_noAF	Benign	-0.10
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.11	T
Eigen	Benign	-0.28
Eigen_PC	Benign	-0.11
FATHMM_MKL	Uncertain	0.85	D
LIST_S2	Benign	0.75	T
M_CAP	Benign	0.062	D
MetaRNN	Benign	0.14	T
MetaSVM	Benign	-0.32	T
MutationAssessor	Benign	0.97	L
PhyloP100		1.3
PrimateAI	Benign	0.30	T
PROVEAN	Benign	-1.4	N
REVEL	Benign	0.17
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0080	D
Polyphen		0.0090	B
Vest4		0.43
MutPred		0.30		Gain of glycosylation at Y871 (P = 0.0104)
MVP		0.71
MPC		0.32
ClinPred		0.54	D
GERP RS		4.0
PromoterAI		0.024	Neutral
Varity_R		0.11
gMVP		0.46
Mutation Taster		=92/8	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: rs201752182; hg19: chr3-47163523;