rs139514583

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_014467.3(SRPX2):​c.624G>A​(p.Pro208Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000546 in 1,208,500 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 20 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., 5 hem., cov: 23)
Exomes 𝑓: 0.000043 ( 0 hom. 15 hem. )

Consequence

SRPX2
NM_014467.3 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -1.87

Publications

0 publications found
Variant links:
Genes affected
SRPX2 (HGNC:30668): (sushi repeat containing protein X-linked 2) This gene encodes a secreted protein that contains three sushi repeat motifs. The encoded protein may play a role in the development of speech and language centers in the brain. This protein may also be involved in angiogenesis. Mutations in this gene are the cause of bilateral perisylvian polymicrogyria, rolandic epilepsy, speech dyspraxia and cognitive disability. [provided by RefSeq, May 2010]
SRPX2 Gene-Disease associations (from GenCC):
  • rolandic epilepsy-speech dyspraxia syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • polymicrogyria, bilateral perisylvian, X-linked
    Inheritance: XL Classification: LIMITED Submitted by: G2P
  • rolandic epilepsy, intellectual disability, and speech dyspraxia, X-linked
    Inheritance: XL Classification: LIMITED, NO_KNOWN Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant X-100665334-G-A is Benign according to our data. Variant chrX-100665334-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 378670.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-1.87 with no splicing effect.
BS2
High AC in GnomAd4 at 19 XL,AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SRPX2NM_014467.3 linkc.624G>A p.Pro208Pro synonymous_variant Exon 6 of 11 ENST00000373004.5 NP_055282.1 O60687

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SRPX2ENST00000373004.5 linkc.624G>A p.Pro208Pro synonymous_variant Exon 6 of 11 1 NM_014467.3 ENSP00000362095.3 O60687

Frequencies

GnomAD3 genomes
AF:
0.000170
AC:
19
AN:
112087
Hom.:
0
Cov.:
23
show subpopulations
Gnomad AFR
AF:
0.000422
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000938
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:
0.0000752
Gnomad OTH
AF:
0.000664
GnomAD2 exomes
AF:
0.0000787
AC:
14
AN:
177884
AF XY:
0.0000638
show subpopulations
Gnomad AFR exome
AF:
0.000466
Gnomad AMR exome
AF:
0.0000369
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000147
Gnomad FIN exome
AF:
0.0000643
Gnomad NFE exome
AF:
0.0000507
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000429
AC:
47
AN:
1096357
Hom.:
0
Cov.:
32
AF XY:
0.0000415
AC XY:
15
AN XY:
361821
show subpopulations
African (AFR)
AF:
0.000379
AC:
10
AN:
26380
American (AMR)
AF:
0.0000570
AC:
2
AN:
35077
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19360
East Asian (EAS)
AF:
0.0000332
AC:
1
AN:
30150
South Asian (SAS)
AF:
0.00
AC:
0
AN:
53633
European-Finnish (FIN)
AF:
0.0000495
AC:
2
AN:
40398
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4136
European-Non Finnish (NFE)
AF:
0.0000345
AC:
29
AN:
841183
Other (OTH)
AF:
0.0000652
AC:
3
AN:
46040
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
2
4
6
8
10
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:
0.000169
AC:
19
AN:
112143
Hom.:
0
Cov.:
23
AF XY:
0.000146
AC XY:
5
AN XY:
34323
show subpopulations
African (AFR)
AF:
0.000421
AC:
13
AN:
30873
American (AMR)
AF:
0.0000937
AC:
1
AN:
10672
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2656
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3544
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2646
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6144
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
216
European-Non Finnish (NFE)
AF:
0.0000752
AC:
4
AN:
53180
Other (OTH)
AF:
0.000655
AC:
1
AN:
1526
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
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:
0.000214
Hom.:
1
Bravo
AF:
0.0000907

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Jul 10, 2015
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Nov 19, 2015
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Rolandic epilepsy, intellectual disability, and speech dyspraxia, X-linked Benign:1
Feb 04, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
5.7
DANN
Benign
0.61
PhyloP100
-1.9
Mutation Taster
=100/0
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

Publications

Other links and lift over

dbSNP: rs139514583; hg19: chrX-99920331; API