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GeneBe

X-100650820-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_014467.3(SRPX2):​c.118G>A​(p.Val40Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000827 in 1,209,291 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 8 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 1 hem., cov: 22)
Exomes 𝑓: 0.0000082 ( 0 hom. 7 hem. )

Consequence

SRPX2
NM_014467.3 missense

Scores

3
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.79
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.21527329).
BS2
High Hemizygotes in GnomAdExome4 at 7 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SRPX2NM_014467.3 linkuse as main transcriptc.118G>A p.Val40Ile missense_variant 3/11 ENST00000373004.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SRPX2ENST00000373004.5 linkuse as main transcriptc.118G>A p.Val40Ile missense_variant 3/111 NM_014467.3 P1

Frequencies

GnomAD3 genomes
AF:
0.00000896
AC:
1
AN:
111601
Hom.:
0
Cov.:
22
AF XY:
0.0000296
AC XY:
1
AN XY:
33771
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:
0.000384
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000164
AC:
3
AN:
183266
Hom.:
0
AF XY:
0.0000443
AC XY:
3
AN XY:
67712
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000157
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000820
AC:
9
AN:
1097690
Hom.:
0
Cov.:
29
AF XY:
0.0000193
AC XY:
7
AN XY:
363056
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000129
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000119
Gnomad4 OTH exome
AF:
0.0000217
GnomAD4 genome
AF:
0.00000896
AC:
1
AN:
111601
Hom.:
0
Cov.:
22
AF XY:
0.0000296
AC XY:
1
AN XY:
33771
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000384
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Rolandic epilepsy, intellectual disability, and speech dyspraxia, X-linked Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvityApr 25, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
19
DANN
Uncertain
1.0
DEOGEN2
Benign
0.070
T;.;.
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Benign
0.79
T;T;T
M_CAP
Uncertain
0.27
D
MetaRNN
Benign
0.22
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.4
L;.;.
MutationTaster
Benign
1.0
D
PrimateAI
Benign
0.48
T
PROVEAN
Benign
-0.48
N;.;.
REVEL
Benign
0.036
Sift
Benign
0.29
T;.;.
Sift4G
Benign
0.68
T;.;.
Polyphen
0.11
B;.;.
Vest4
0.16
MutPred
0.37
Gain of catalytic residue at V40 (P = 0.0668);Gain of catalytic residue at V40 (P = 0.0668);Gain of catalytic residue at V40 (P = 0.0668);
MVP
0.46
MPC
0.59
ClinPred
0.31
T
GERP RS
5.6
Varity_R
0.14
gMVP
0.45

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: rs781027646; hg19: chrX-99905817; API