Genetic Variant SETD2:p.Lys941Arg (chr3-47121814-T-C) – ACMG Classification: Benign (-13 pts)

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_014159.7(SETD2):c.2822A>G(p.Lys941Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,613,998 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. K941K) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

SETD2
NM_014159.7 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 0.431

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:

ENSG00000296084 (HGNC:):

ENSG00000296084 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.04597774).

BP6

Variant 3-47121814-T-C is Benign according to our data. Variant chr3-47121814-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 542222.

BS1

Variant frequency is greater than expected in population nfe. GnomAdExome4 allele frequency = 0.0000198 (29/1461796) while in subpopulation NFE AF = 0.0000243 (27/1111948). AF 95% confidence interval is 0.0000166. There are 0 homozygotes in GnomAdExome4. There are 11 alleles in the male GnomAdExome4 subpopulation. Median coverage is 34. This position passed quality control check.

BS2

High AC in GnomAdExome4 at 29 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014159.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
SETD2	NM_014159.7	MANE Select	c.2822A>G	p.Lys941Arg	missense	Exon 3 of 21	NP_054878.5
SETD2	NM_001349370.3		c.2690A>G	p.Lys897Arg	missense	Exon 2 of 20	NP_001336299.1
SETD2	NR_146158.3		n.3011A>G		non_coding_transcript_exon	Exon 3 of 22

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
SETD2	ENST00000409792.4	TSL:5 MANE Select	c.2822A>G	p.Lys941Arg	missense	Exon 3 of 21	ENSP00000386759.3
SETD2	ENST00000330022.11	TSL:1	n.2435A>G		non_coding_transcript_exon	Exon 1 of 19	ENSP00000332415.7
SETD2	ENST00000638947.2	TSL:5	c.2690A>G	p.Lys897Arg	missense	Exon 2 of 20	ENSP00000491413.2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251128

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000198

AC:

AN:

1461796

Hom.:

Cov.:

AF XY:

0.0000151

AC XY:

AN XY:

727196

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39686

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000243

AC:

AN:

1111948

Other (OTH)

AF:

0.0000166

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.477

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

AF:

0.00000657

AC:

AN:

152202

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74350

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41456

American (AMR)

AF:

0.00

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68030

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Luscan-Lumish syndrome

Uncertain:1

Nov 30, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is present in population databases (no rsID available, gnomAD 0.0009%). This sequence change replaces lysine, which is basic and polar, with arginine, which is basic and polar, at codon 941 of the SETD2 protein (p.Lys941Arg). This variant has not been reported in the literature in individuals affected with SETD2-related conditions. ClinVar contains an entry for this variant (Variation ID: 542222). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The arginine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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.

not provided

Benign:1

May 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

SETD2: BP4

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.060

BayesDel_addAF

Benign

-0.097

BayesDel_noAF

Benign

-0.38

CADD

Benign

(source)

DANN

Benign

0.95

DEOGEN2

Benign

0.22

Eigen

Benign

-0.82

Eigen_PC

Benign

-0.69

FATHMM_MKL

Benign

0.24

LIST_S2

Benign

0.70

M_CAP

Benign

0.044

MetaRNN

Benign

0.046

MetaSVM

Benign

-0.78

MutationAssessor

Benign

0.26

PhyloP100

0.43

PrimateAI

Benign

0.29

PROVEAN

Benign

-0.48

REVEL

Benign

0.064

Sift

Benign

0.29

Sift4G

Benign

0.36

Polyphen

0.0

Vest4

0.027

MutPred

0.14

Loss of ubiquitination at K941 (P = 0.0017)

MVP

0.44

MPC

0.21

ClinPred

0.023

GERP RS

1.6

PromoterAI

0.018

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.024

gMVP

0.22

Mutation Taster

=94/6

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over