17-49607303-TCCC-T

Variant names:

• chr17-49607303-TCCC-T
• NM_001007228.2:c.781_783delGGG

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PM4_Supporting

The NM_001007228.2(SPOP):​c.781_783delGGG​(p.Gly261del) variant causes a conservative inframe deletion change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 31)
• Consequence: SPOP NM_001007228.2 conservative_inframe_deletion
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.91
• Publications: 0 publications found

Genes affected

SPOP (HGNC:11254): (speckle type BTB/POZ protein) This gene encodes a protein that may modulate the transcriptional repression activities of death-associated protein 6 (DAXX), which interacts with histone deacetylase, core histones, and other histone-associated proteins. In mouse, the encoded protein binds to the putative leucine zipper domain of macroH2A1.2, a variant H2A histone that is enriched on inactivated X chromosomes. The BTB/POZ domain of this protein has been shown in other proteins to mediate transcriptional repression and to interact with components of histone deacetylase co-repressor complexes. Alternative splicing of this gene results in multiple transcript variants encoding the same protein. [provided by RefSeq, Jul 2008]

SPOP Gene-Disease associations (from GenCC):

• neurodevelopmental disorder

  Inheritance: AD Classification: STRONG Submitted by: PanelApp Australia
• neurodevelopmental disorder with microcephaly and dysmorphic facies

  Inheritance: AD Classification: STRONG, MODERATE Submitted by: Illumina, Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
• neurodevelopmental disorder with relative macrocephaly and with or without cardiac or endocrine anomalies

  Inheritance: AD Classification: STRONG Submitted by: G2P

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM4: Nonframeshift variant in NON repetitive region in NM_001007228.2. Strenght limited to Supporting due to length of the change: 1aa.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001007228.2. 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
	SPOP	NM_001007228.2	MANE Select	c.781_783delGGG	p.Gly261del	conservative_inframe_deletion	Exon 8 of 10	NP_001007229.1	O43791
	SPOP	NM_001007226.1		c.781_783delGGG	p.Gly261del	conservative_inframe_deletion	Exon 10 of 12	NP_001007227.1	O43791
	SPOP	NM_001007227.1		c.781_783delGGG	p.Gly261del	conservative_inframe_deletion	Exon 9 of 11	NP_001007228.1	O43791

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SPOP	ENST00000504102.6	TSL:1 MANE Select	c.781_783delGGG	p.Gly261del	conservative_inframe_deletion	Exon 8 of 10	ENSP00000425905.1	O43791
	SPOP	ENST00000393328.6	TSL:1	c.781_783delGGG	p.Gly261del	conservative_inframe_deletion	Exon 9 of 11	ENSP00000377001.2	O43791
	SPOP	ENST00000347630.6	TSL:5	c.781_783delGGG	p.Gly261del	conservative_inframe_deletion	Exon 9 of 11	ENSP00000240327.2	O43791

Frequencies

GnomAD3 genomes Cov.: 31

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

GnomAD4 genome Cov.: 31

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	SPOP-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		7.9

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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

hg19: chr17-47684665;