Our verdict is Benign. The variant received -15 ACMG points: 0P and 15B. BP4_ModerateBP6_Very_StrongBP7BS2
The NM_001353921.2(ARHGEF9):c.579G>A(p.Glu193Glu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000406 in 1,207,168 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 13 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
ARHGEF9 (HGNC:14561): (Cdc42 guanine nucleotide exchange factor 9) The protein encoded by this gene is a Rho-like GTPase that switches between the active (GTP-bound) state and inactive (GDP-bound) state to regulate CDC42 and other genes. This brain-specific protein also acts as an adaptor protein for the recruitment of gephyrin and together these proteins facilitate receceptor recruitement in GABAnergic and glycinergic synapses. Defects in this gene are the cause of startle disease with epilepsy (STHEE), also known as hyperekplexia with epilepsy, as well as several other types of cognitive disability. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2017]
Our verdict: Benign. The variant received -15 ACMG points.
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.39).
BP6
Variant X-63697128-C-T is Benign according to our data. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-63697128-C-T is described in CliVar as Likely_benign. Clinvar id is 389108.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=2.99 with no splicing effect.
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. -
ARHGEF9-related disorderBenign:1
Jul 16, 2019
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Developmental and epileptic encephalopathy, 8Benign:1