rs138091242

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_014467.3(SRPX2):​c.1293C>T​(p.Tyr431Tyr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000476 in 1,209,709 control chromosomes in the GnomAD database, including 8 homozygotes. There are 192 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 0.00068 ( 0 hom., 23 hem., cov: 23)
Exomes 𝑓: 0.00046 ( 8 hom. 169 hem. )

Consequence

SRPX2
NM_014467.3 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.05
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.49).
BP6
Variant X-100670882-C-T is Benign according to our data. Variant chrX-100670882-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 139326.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-100670882-C-T is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=1.05 with no splicing effect.
BS2
High Hemizygotes in GnomAd4 at 23 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SRPX2NM_014467.3 linkuse as main transcriptc.1293C>T p.Tyr431Tyr synonymous_variant 11/11 ENST00000373004.5 NP_055282.1 O60687

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SRPX2ENST00000373004.5 linkuse as main transcriptc.1293C>T p.Tyr431Tyr synonymous_variant 11/111 NM_014467.3 ENSP00000362095.3 O60687
SRPX2ENST00000640282.1 linkuse as main transcriptc.*28C>T 3_prime_UTR_variant 3/35 ENSP00000491188.1 A0A1W2PNZ6
SRPX2ENST00000638920.1 linkuse as main transcriptn.1296C>T non_coding_transcript_exon_variant 10/105

Frequencies

GnomAD3 genomes
AF:
0.000691
AC:
77
AN:
111480
Hom.:
0
Cov.:
23
AF XY:
0.000713
AC XY:
24
AN XY:
33670
show subpopulations
Gnomad AFR
AF:
0.000262
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000570
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0163
Gnomad SAS
AF:
0.00116
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000188
Gnomad OTH
AF:
0.000673
GnomAD3 exomes
AF:
0.00125
AC:
229
AN:
183440
Hom.:
5
AF XY:
0.000987
AC XY:
67
AN XY:
67878
show subpopulations
Gnomad AFR exome
AF:
0.000380
Gnomad AMR exome
AF:
0.0000365
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0145
Gnomad SAS exome
AF:
0.000839
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000122
Gnomad OTH exome
AF:
0.00110
GnomAD4 exome
AF:
0.000455
AC:
500
AN:
1098172
Hom.:
8
Cov.:
31
AF XY:
0.000465
AC XY:
169
AN XY:
363526
show subpopulations
Gnomad4 AFR exome
AF:
0.000152
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00917
Gnomad4 SAS exome
AF:
0.00105
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000178
Gnomad4 OTH exome
AF:
0.00317
GnomAD4 genome
AF:
0.000681
AC:
76
AN:
111537
Hom.:
0
Cov.:
23
AF XY:
0.000682
AC XY:
23
AN XY:
33737
show subpopulations
Gnomad4 AFR
AF:
0.000261
Gnomad4 AMR
AF:
0.000570
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.0161
Gnomad4 SAS
AF:
0.00116
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000188
Gnomad4 OTH
AF:
0.000664
Alfa
AF:
0.000425
Hom.:
1
Bravo
AF:
0.00102

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxMar 06, 2014This 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. -
Likely benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoJan 22, 2017- -
Rolandic epilepsy, intellectual disability, and speech dyspraxia, X-linked Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 19, 2024- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsSep 18, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.49
CADD
Benign
6.8
DANN
Benign
0.87

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs138091242; hg19: chrX-99925879; API