rs1555917927

Variant names:

• chrX-41123670-CA-C
• rs1555917927
• NM_001039591.3:c.44delA

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_001039591.3(USP9X):​c.44delA​(p.Asn15ThrfsTer64) variant causes a frameshift change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★).

• Frequency: Genomes: not found (cov: 23)
• Consequence: USP9X NM_001039591.3 frameshift
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 4.68
• Publications: 0 publications found

Genes affected

USP9X (HGNC:12632): (ubiquitin specific peptidase 9 X-linked) This gene is a member of the peptidase C19 family and encodes a protein that is similar to ubiquitin-specific proteases. Though this gene is located on the X chromosome, it escapes X-inactivation. Mutations in this gene have been associated with Turner syndrome. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]

USP9X Gene-Disease associations (from GenCC):

• intellectual disability, X-linked 99, syndromic, female-restricted

  Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P
• X-linked syndromic intellectual disability

  Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
• intellectual disability, X-linked 99

  Inheritance: XL Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• non-syndromic X-linked intellectual disability

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
• X-linked female restricted facial dysmorphism-short stature-choanal atresia-intellectual disability

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Pathogenic. The variant received 12 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 113 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant X-41123670-CA-C is Pathogenic according to our data. Variant chrX-41123670-CA-C is described in ClinVar as Pathogenic. ClinVar VariationId is 547925.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001039591.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	USP9X	NM_001039591.3	MANE Select	c.44delA	p.Asn15ThrfsTer64	frameshift	Exon 2 of 45	NP_001034680.2
	USP9X	NM_001410748.1		c.44delA	p.Asn15ThrfsTer64	frameshift	Exon 3 of 46	NP_001397677.1
	USP9X	NM_001039590.3		c.44delA	p.Asn15ThrfsTer64	frameshift	Exon 2 of 45	NP_001034679.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	USP9X	ENST00000378308.7	TSL:5 MANE Select	c.44delA	p.Asn15ThrfsTer64	frameshift	Exon 2 of 45	ENSP00000367558.2
	USP9X	ENST00000703987.1		c.44delA	p.Asn15ThrfsTer64	frameshift	Exon 2 of 45	ENSP00000515604.1
	USP9X	ENST00000324545.9	TSL:5	c.44delA	p.Asn15ThrfsTer64	frameshift	Exon 2 of 45	ENSP00000316357.6

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 23

ClinVar

ClinVar submissions as Germline

Significance: Pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Intellectual disability, X-linked 99, syndromic, female-restricted (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		4.7
Mutation Taster		=3/197	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: rs1555917927; hg19: chrX-40982923;