chr18-44951948-G-A

Variant names:

• chr18-44951948-G-A
• rs267607040
• NM_015559.3:c.2608G>A

Variant summary

Our verdict is Pathogenic. The variant received 20 ACMG points: 20P and 0B. PS3 PM1 PM2 PM5 PP3_Moderate PP5_Very_Strong

The NM_015559.3(SETBP1):​c.2608G>A​(p.Gly870Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,882 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). ClinVar reports functional evidence for this variant: "SCV004013477: Functional studies provide strong evidence of the variant having a damaging effect on the gene or gene product (PMID:23222956)." and additional evidence is available in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G870C) has been classified as Pathogenic.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: SETBP1 NM_015559.3 missense
• Clinical Significance: Pathogenic criteria provided, multiple submitters, no conflicts P:12
• Conservation: PhyloP100: 9.97
• Publications: 93 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: Pathogenic. The variant received 20 ACMG points.

• PS3: PS3 evidence extracted from ClinVar submissions: SCV004013477: Functional studies provide strong evidence of the variant having a damaging effect on the gene or gene product (PMID: 23222956).; SCV001872827: Published functional studies demonstrate a damaging effect (significant increase in cell proliferation) (Piazza et al., 2013); SCV004014868: Functional studies indicate this variant may lead to higher amounts of SETBP1 protein (PMID: 23222956).
• PM1: In a hotspot region, there are 11 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 4 uncertain in NM_015559.3
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr18-44951948-G-T is described in ClinVar as Pathogenic. ClinVar VariationId is 3377279.Status of the report is criteria_provided_single_submitter, 1 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.859
• PP5: Variant 18-44951948-G-A is Pathogenic according to our data. Variant chr18-44951948-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 1035.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

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.2608G>A	p.Gly870Ser	missense	Exon 4 of 6	NP_056374.2	Q9Y6X0-1
	SETBP1	NM_001379141.1		c.2608G>A	p.Gly870Ser	missense	Exon 4 of 6	NP_001366070.1	Q9Y6X0-1
	SETBP1	NM_001379142.1		c.2608G>A	p.Gly870Ser	missense	Exon 4 of 6	NP_001366071.1	Q9Y6X0-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SETBP1	ENST00000649279.2	MANE Select	c.2608G>A	p.Gly870Ser	missense	Exon 4 of 6	ENSP00000497406.1	Q9Y6X0-1
	SETBP1	ENST00000677068.1		c.2608G>A	p.Gly870Ser	missense	Exon 4 of 6	ENSP00000504398.1	Q9Y6X0-1
	SETBP1	ENST00000677077.1		c.2608G>A	p.Gly870Ser	missense	Exon 4 of 6	ENSP00000503656.1	Q9Y6X0-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251064 AF XY: 0.00

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: 0.00000205 AC: 3 AN: 1461882 Hom.: 0 Cov.: 38 AF XY: 0.00000413 AC XY: 3 AN XY: 727244

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

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53416

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000270 AC: 3 AN: 1112010

Other (OTH) AF: 0.00 AC: 0 AN: 60394

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.0000416442), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000889 Hom.: 0

ExAC AF: 0.0000165 AC: 2

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
6	-	-	Schinzel-Giedion syndrome (6)
3	-	-	not provided (3)
2	-	-	SETBP1-related disorder (2)
1	-	-	Intellectual disability, autosomal dominant 29 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.44	D
BayesDel_noAF	Pathogenic	0.40
CADD	Pathogenic	29
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.75	D
Eigen	Pathogenic	0.84
Eigen_PC	Pathogenic	0.88
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Uncertain	0.10	D
MetaRNN	Pathogenic	0.86	D
MetaSVM	Uncertain	0.68	D
MutationAssessor	Benign	2.0	M
PhyloP100		10
PrimateAI	Pathogenic	0.93	D
PROVEAN	Pathogenic	-5.7	D
REVEL	Pathogenic	0.72
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.98
MutPred		0.31		Gain of glycosylation at G870 (P = 0.0113)
MVP		0.97
MPC		0.91
ClinPred		1.0	D
GERP RS		6.2
Varity_R		0.93
gMVP		0.64
Mutation Taster		=4/96	disease causing (ClinVar)

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: rs267607040; hg19: chr18-42531913; COSMIC: COSV56311834;