NM_014159.7:c.6110-27_6110-26dupAA

Variant names:

• chr3-47062371-G-GTT
• rs10589946
• NM_014159.7:c.6110-27_6110-26dupAA

Variant summary

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

The NM_014159.7(SETD2):​c.6110-27_6110-26dupAA variant causes a intron change involving the alteration of a non-conserved nucleotide. There is a variant allele frequency bias in the population database for this variant (GnomAdExome4), which may indicate mosaicism or somatic mutations in the reference population data. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. There are indicators that this mutation may affect the branch point..

• Frequency:
  • Genomes: 𝑓 0.0000068 (0 hom., cov: 0)
  • Exomes 𝑓: 0.00051 (0 hom.)
• Consequence: SETD2 NM_014159.7 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.577
• Publications: 3 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

ACMG classification

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SETD2	NM_014159.7	c.6110-27_6110-26dupAA		intron_variant	Intron 13 of 20	ENST00000409792.4	NP_054878.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SETD2	ENST00000409792.4	c.6110-26_6110-25insAA		intron_variant	Intron 13 of 20	5	NM_014159.7	ENSP00000386759.3

Frequencies

GnomAD3 genomes AF: 0.00000681 AC: 1 AN: 146738 Hom.: 0 Cov.: 0

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: 0.0000151

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.000512 AC: 623 AN: 1216278 Hom.: 0 Cov.: 0 AF XY: 0.000479 AC XY: 289 AN XY: 603166

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.000233 AC: 6 AN: 25758

American (AMR) AF: 0.000258 AC: 7 AN: 27104

Ashkenazi Jewish (ASJ) AF: 0.000302 AC: 6 AN: 19868

East Asian (EAS) AF: 0.000113 AC: 4 AN: 35326

South Asian (SAS) AF: 0.000785 AC: 51 AN: 64978

European-Finnish (FIN) AF: 0.000242 AC: 11 AN: 45376

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4772

European-Non Finnish (NFE) AF: 0.000541 AC: 510 AN: 942908

Other (OTH) AF: 0.000558 AC: 28 AN: 50188

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome AF: 0.00000681 AC: 1 AN: 146738 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 71336

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 40166

American (AMR) AF: 0.00 AC: 0 AN: 14888

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3410

East Asian (EAS) AF: 0.00 AC: 0 AN: 5066

South Asian (SAS) AF: 0.00 AC: 0 AN: 4630

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 9066

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 304

European-Non Finnish (NFE) AF: 0.0000151 AC: 1 AN: 66306

Other (OTH) AF: 0.00 AC: 0 AN: 2026

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		-0.58
BranchPoint Hunter		1.0

Splicing

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

Other links and lift over

dbSNP: rs10589946; hg19: chr3-47103861;