X-41137008-C-G

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2

The NM_001039591.3(USP9X):​c.640C>G​(p.Pro214Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000124 in 1,208,609 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 4 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P214L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 1 hem., cov: 23)
Exomes 𝑓: 0.000013 ( 0 hom. 3 hem. )

Consequence

USP9X
NM_001039591.3 missense

Scores

1
2
14

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 7.57

Publications

0 publications found
Variant links:
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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.37151378).
BS2
High Hemizygotes in GnomAdExome4 at 3 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
USP9XNM_001039591.3 linkc.640C>G p.Pro214Ala missense_variant Exon 6 of 45 ENST00000378308.7 NP_001034680.2 Q93008-1Q86X58Q6P468

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
USP9XENST00000378308.7 linkc.640C>G p.Pro214Ala missense_variant Exon 6 of 45 5 NM_001039591.3 ENSP00000367558.2 Q93008-1

Frequencies

GnomAD3 genomes
AF:
0.00000892
AC:
1
AN:
112101
Hom.:
0
Cov.:
23
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000188
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000128
AC:
14
AN:
1096508
Hom.:
0
Cov.:
29
AF XY:
0.00000829
AC XY:
3
AN XY:
361910
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26370
American (AMR)
AF:
0.00
AC:
0
AN:
35177
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19355
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30157
South Asian (SAS)
AF:
0.00
AC:
0
AN:
54004
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40497
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4133
European-Non Finnish (NFE)
AF:
0.0000155
AC:
13
AN:
840780
Other (OTH)
AF:
0.0000217
AC:
1
AN:
46035
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000892
AC:
1
AN:
112101
Hom.:
0
Cov.:
23
AF XY:
0.0000292
AC XY:
1
AN XY:
34251
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30838
American (AMR)
AF:
0.00
AC:
0
AN:
10566
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2650
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3599
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2718
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6066
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
239
European-Non Finnish (NFE)
AF:
0.0000188
AC:
1
AN:
53226
Other (OTH)
AF:
0.00
AC:
0
AN:
1514

Age Distribution

Genome Hom
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000189

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Apr 12, 2016
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

May 27, 2022
Clinical Genetics Laboratory, Skane University Hospital Lund
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Inborn genetic diseases Uncertain:1
Feb 19, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.640C>G (p.P214A) alteration is located in exon 6 (coding exon 5) of the USP9X gene. This alteration results from a C to G substitution at nucleotide position 640, causing the proline (P) at amino acid position 214 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.076
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.44
CADD
Benign
23
DANN
Benign
0.96
DEOGEN2
Benign
0.33
.;T
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.93
D;D
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.37
T;T
MetaSVM
Benign
-0.93
T
MutationAssessor
Benign
0.81
L;L
PhyloP100
7.6
PrimateAI
Uncertain
0.68
T
PROVEAN
Benign
-2.1
N;N
REVEL
Benign
0.23
Sift
Benign
0.32
T;T
Sift4G
Benign
0.39
T;T
Polyphen
0.016
B;B
Vest4
0.58
MutPred
0.17
Loss of glycosylation at P214 (P = 0.0404);Loss of glycosylation at P214 (P = 0.0404);
MVP
0.42
MPC
0.79
ClinPred
0.69
D
GERP RS
5.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.35
gMVP
0.58
Mutation Taster
=45/55
disease causing

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

Publications

Other links and lift over

dbSNP: rs878853105; hg19: chrX-40996261; API