NM_020717.5:c.3408_3413delGGAGGA

Variant names:

• chrX-50607727-CTTCCTC-CT
• NM_020717.5:c.3409_3413delGAGGA

Variant summary

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

The NM_020717.5(SHROOM4):​c.3409_3413delGAGGA​(p.Glu1137ArgfsTer39) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 14)
• Consequence: SHROOM4 NM_020717.5 frameshift
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.08
• Publications: 0 publications found

Genes affected

SHROOM4 (HGNC:29215): (shroom family member 4) This gene encodes a member of the APX/Shroom family, which contain an N-terminal PDZ domain and a C-terminal ASD2 motif. The encoded protein may play a role in cytoskeletal architecture. Mutations in this gene have been linked to the X-linked Stocco dos Santos syndrome characterized by cognitive disabilities. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jul 2017]

SHROOM4 Gene-Disease associations (from GenCC):

• congenital anomaly of kidney and urinary tract

  Inheritance: XL Classification: STRONG Submitted by: PanelApp Australia
• idiopathic generalized epilepsy

  Inheritance: XL Classification: STRONG Submitted by: PanelApp Australia
• X-linked intellectual disability, Stocco dos Santos type

  Inheritance: XL Classification: SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
• complex neurodevelopmental disorder

  Inheritance: XL Classification: LIMITED Submitted by: Ambry Genetics
• X-linked complex neurodevelopmental disorder

  Inheritance: XL Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020717.5. 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
	SHROOM4	NM_020717.5	MANE Select	c.3409_3413delGAGGA	p.Glu1137ArgfsTer39	frameshift	Exon 6 of 9	NP_065768.2	Q9ULL8-1
	SHROOM4	NR_027121.3		n.3585_3589delGAGGA		non_coding_transcript_exon	Exon 6 of 10
	SHROOM4	NR_172068.1		n.3450_3454delGAGGA		non_coding_transcript_exon	Exon 5 of 9

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SHROOM4	ENST00000376020.9	TSL:2 MANE Select	c.3409_3413delGAGGA	p.Glu1137ArgfsTer39	frameshift	Exon 6 of 9	ENSP00000365188.2	Q9ULL8-1
	SHROOM4	ENST00000289292.11	TSL:1	c.3409_3413delGAGGA	p.Glu1137ArgfsTer39	frameshift	Exon 6 of 10	ENSP00000289292.7	Q9ULL8-1
	SHROOM4	ENST00000898514.1		c.3274_3278delGAGGA	p.Glu1092ArgfsTer39	frameshift	Exon 5 of 8	ENSP00000568573.1

Frequencies

GnomAD3 genomes Cov.: 14

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

GnomAD4 genome Cov.: 14

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		3.1

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: chrX-50350727;