18-44951954-GGG-CGA

Variant names:

• chr18-44951954-GGG-CGA
• NM_015559.3:c.2614_2616delGGGinsCGA
• SETBP1 p.Gly872Arg

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PS1 PM1 PP3

The NM_015559.3(SETBP1):​c.2614_2616delGGGinsCGA​(p.Gly872Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely pathogenic in ClinVar. Synonymous variant affecting the same amino acid position (i.e. G872G) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SETBP1 NM_015559.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.97
• Publications: 0 publications found

Genes affected

SETBP1 (HGNC:15573): (SET binding protein 1) This gene encodes a protein which contains a several motifs including a ski homology region and a SET-binding region in addition to three nuclear localization signals. The encoded protein has been shown to bind the SET nuclear oncogene which is involved in DNA replication. Mutations in this gene are associated with Schinzel-Giedion midface retraction syndrome. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2011]

SETBP1 Gene-Disease associations (from GenCC):

• complex neurodevelopmental disorder

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• intellectual disability, autosomal dominant 29

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), PanelApp Australia
• Schinzel-Giedion syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Orphanet, Laboratory for Molecular Medicine, PanelApp Australia, G2P
• intellectual disability-expressive aphasia-facial dysmorphism syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

• PS1: Transcript NM_015559.3 (SETBP1) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in ClinVar.
• PM1: In a hotspot region, there are 13 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_015559.3
• PP3: No computational evidence supports a deleterious effect, but strongly conserved according to phyloP

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015559.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SETBP1	NM_015559.3	MANE Select	c.2614_2616delGGGinsCGA	p.Gly872Arg	missense	N/A	NP_056374.2	Q9Y6X0-1
	SETBP1	NM_001379141.1		c.2614_2616delGGGinsCGA	p.Gly872Arg	missense	N/A	NP_001366070.1	Q9Y6X0-1
	SETBP1	NM_001379142.1		c.2614_2616delGGGinsCGA	p.Gly872Arg	missense	N/A	NP_001366071.1	Q9Y6X0-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SETBP1	ENST00000649279.2	MANE Select	c.2614_2616delGGGinsCGA	p.Gly872Arg	missense	N/A	ENSP00000497406.1	Q9Y6X0-1
	SETBP1	ENST00000677068.1		c.2614_2616delGGGinsCGA	p.Gly872Arg	missense	N/A	ENSP00000504398.1	Q9Y6X0-1
	SETBP1	ENST00000677077.1		c.2614_2616delGGGinsCGA	p.Gly872Arg	missense	N/A	ENSP00000503656.1	Q9Y6X0-1

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		10

Splicing

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr18-42531919;