3-47062337-C-G

Variant names:

Variant summary

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

The NM_014159.7(SETD2):c.6119G>C(p.Arg2040Pro) variant causes a missense change. The variant allele was found at a frequency of 0.00000139 in 1,441,668 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2040G) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SETD2
NM_014159.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.83

Publications

1 publications found

Variant links:

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

SETD2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SETD2	NM_014159.7 link	c.6119G>C	p.Arg2040Pro	missense_variant	Exon 14 of 21	ENST00000409792.4	NP_054878.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SETD2	ENST00000409792.4 link	c.6119G>C	p.Arg2040Pro	missense_variant	Exon 14 of 21	5	NM_014159.7	ENSP00000386759.3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000888

AC:

AN:

225288

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000689

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000139

AC:

AN:

1441668

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

716198

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32242

American (AMR)

AF:

0.0000483

AC:

AN:

41450

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25288

East Asian (EAS)

AF:

0.00

AC:

AN:

39314

South Asian (SAS)

AF:

0.00

AC:

AN:

81050

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53134

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5664

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1104138

Other (OTH)

AF:

0.00

AC:

AN:

59388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.675

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Luscan-Lumish syndrome

Uncertain:1

Mar 07, 2020

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces arginine with proline at codon 2040 of the SETD2 protein (p.Arg2040Pro). The arginine residue is highly conserved and there is a moderate physicochemical difference between arginine and proline. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with SETD2-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.62

BayesDel_addAF

Uncertain

0.12

BayesDel_noAF

Uncertain

0.12

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.59

Eigen

Uncertain

0.60

Eigen_PC

Uncertain

0.57

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.82

M_CAP

Uncertain

0.19

MetaRNN

Uncertain

0.67

MetaSVM

Uncertain

0.74

MutationAssessor

Benign

1.7

PhyloP100

4.8

PrimateAI

Uncertain

0.60

PROVEAN

Uncertain

-4.0

REVEL

Uncertain

0.60

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0040

Polyphen

1.0

Vest4

0.56

MutPred

0.25

Gain of glycosylation at T2036 (P = 0.0522);

MVP

0.75

MPC

1.8

ClinPred

0.98

GERP RS

4.8

Varity_R

0.70

gMVP

0.48

Mutation Taster

=51/49

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over