chrX-68073156-G-A

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_002547.3(OPHN1):​c.1830C>T​(p.Ser610=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000896 in 1,205,325 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 36 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000071 ( 0 hom., 1 hem., cov: 23)
Exomes 𝑓: 0.000091 ( 0 hom. 35 hem. )

Consequence

OPHN1
NM_002547.3 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 0.519
Variant links:
Genes affected
OPHN1 (HGNC:8148): (oligophrenin 1) This gene encodes a Rho-GTPase-activating protein that promotes GTP hydrolysis of Rho subfamily members. Rho proteins are important mediators of intracellular signal transduction, which affects cell migration and cell morphogenesis. Mutations in this gene are responsible for OPHN1-related X-linked cognitive disability with cerebellar hypoplasia and distinctive facial dysmorhphism. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.51).
BP6
Variant X-68073156-G-A is Benign according to our data. Variant chrX-68073156-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 211793.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1, Benign=1}.
BP7
Synonymous conserved (PhyloP=0.519 with no splicing effect.
BS2
High Hemizygotes in GnomAdExome4 at 35 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
OPHN1NM_002547.3 linkuse as main transcriptc.1830C>T p.Ser610= synonymous_variant 20/25 ENST00000355520.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
OPHN1ENST00000355520.6 linkuse as main transcriptc.1830C>T p.Ser610= synonymous_variant 20/251 NM_002547.3 P1O60890-1

Frequencies

GnomAD3 genomes
AF:
0.0000713
AC:
8
AN:
112267
Hom.:
0
Cov.:
23
AF XY:
0.0000290
AC XY:
1
AN XY:
34439
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00151
Gnomad EAS
AF:
0.000281
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000375
Gnomad OTH
AF:
0.000665
GnomAD3 exomes
AF:
0.000195
AC:
33
AN:
169245
Hom.:
0
AF XY:
0.000126
AC XY:
7
AN XY:
55647
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000759
Gnomad ASJ exome
AF:
0.00275
Gnomad EAS exome
AF:
0.000382
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000541
Gnomad OTH exome
AF:
0.000473
GnomAD4 exome
AF:
0.0000915
AC:
100
AN:
1093058
Hom.:
0
Cov.:
30
AF XY:
0.0000974
AC XY:
35
AN XY:
359184
show subpopulations
Gnomad4 AFR exome
AF:
0.0000760
Gnomad4 AMR exome
AF:
0.0000576
Gnomad4 ASJ exome
AF:
0.00207
Gnomad4 EAS exome
AF:
0.000133
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000596
Gnomad4 OTH exome
AF:
0.0000436
GnomAD4 genome
AF:
0.0000713
AC:
8
AN:
112267
Hom.:
0
Cov.:
23
AF XY:
0.0000290
AC XY:
1
AN XY:
34439
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00151
Gnomad4 EAS
AF:
0.000281
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000375
Gnomad4 OTH
AF:
0.000665
Alfa
AF:
0.000304
Hom.:
1
Bravo
AF:
0.0000945

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitterclinical testingGeneDxMay 24, 2021- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpSep 08, 2023- -
not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoDec 16, 2014- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.51
CADD
Benign
6.8
DANN
Benign
0.88

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: rs368803937; hg19: chrX-67292998; API