rs1555933987

Variant names:

• chrX-41216250-A-G
• rs1555933987
• NM_001039591.3:c.5683A>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001039591.3(USP9X):​c.5683A>G​(p.Asn1895Asp) variant causes a missense 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: 23)
• Consequence: USP9X NM_001039591.3 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 8.95
• 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: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
USP9X	NM_001039591.3	c.5683A>G	p.Asn1895Asp	missense_variant	Exon 35 of 45	ENST00000378308.7	NP_001034680.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
USP9X	ENST00000378308.7	c.5683A>G	p.Asn1895Asp	missense_variant	Exon 35 of 45	5	NM_001039591.3	ENSP00000367558.2

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 23

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Inborn genetic diseases Uncertain:1

Dec 09, 2016

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Lines of evidence used in support of classification: UNCERTAIN: Alteration(s) of Uncertain Clinical Significance Detected -

not provided Uncertain:1

Apr 27, 2021

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Not observed in large population cohorts (Lek et al., 2016); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 24607389, 24690944, 25763846, 26833328, 28688840) -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.083
BayesDel_addAF	Benign	-0.30	T
BayesDel_noAF	Benign	-0.67
CADD	Benign	22
DANN	Benign	0.96
DEOGEN2	Benign	0.21	.;T
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.86	D;D
M_CAP	Uncertain	0.19	D
MetaRNN	Uncertain	0.72	D;D
MetaSVM	Benign	-0.92	T
MutationAssessor	Benign	0.23	N;N
PhyloP100		8.9
PrimateAI	Pathogenic	0.92	D
PROVEAN	Benign	-0.80	N;N
REVEL	Benign	0.18
Sift	Benign	0.69	T;T
Sift4G	Benign	0.81	T;T
Polyphen		0.0	B;B
Vest4		0.63
MutPred		0.83		Gain of disorder (P = 0.0878);Gain of disorder (P = 0.0878);
MVP		0.45
MPC		1.0
ClinPred		0.83	D
GERP RS		5.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.56
gMVP		0.90
Mutation Taster		=53/47	polymorphism

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: rs1555933987; hg19: chrX-41075503;