X-136672085-GAGT-G

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PM4_SupportingBS2

The NM_004840.3(ARHGEF6):​c.2067_2069delACT​(p.Leu690del) variant causes a disruptive inframe deletion change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000314 in 1,208,336 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 9 hemizygotes in GnomAD. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 1 hem., cov: 22)
Exomes 𝑓: 0.000033 ( 0 hom. 8 hem. )

Consequence

ARHGEF6
NM_004840.3 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 8.20
Variant links:
Genes affected
ARHGEF6 (HGNC:685): (Rac/Cdc42 guanine nucleotide exchange factor 6) Rho GTPases play a fundamental role in numerous cellular processes that are initiated by extracellular stimuli that work through G protein coupled receptors. The encoded protein belongs to a family of cytoplasmic proteins that activate the Ras-like family of Rho proteins by exchanging bound GDP for GTP. It may form a complex with G proteins and stimulate Rho-dependent signals. This protein is activated by PI3-kinase. Mutations in this gene can cause X-chromosomal non-specific cognitive disability. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM4
Nonframeshift variant in NON repetitive region in NM_004840.3. Strenght limited to Supporting due to length of the change: 1aa.
BS2
High Hemizygotes in GnomAdExome4 at 8 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ARHGEF6NM_004840.3 linkuse as main transcriptc.2067_2069delACT p.Leu690del disruptive_inframe_deletion 20/22 ENST00000250617.7 NP_004831.1 Q15052-1Q8N4Q3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ARHGEF6ENST00000250617.7 linkuse as main transcriptc.2067_2069delACT p.Leu690del disruptive_inframe_deletion 20/221 NM_004840.3 ENSP00000250617.6 Q15052-1
ARHGEF6ENST00000370622.5 linkuse as main transcriptc.1605_1607delACT p.Leu536del disruptive_inframe_deletion 19/211 ENSP00000359656.1 Q15052-2
ARHGEF6ENST00000370620.5 linkuse as main transcriptc.1605_1607delACT p.Leu536del disruptive_inframe_deletion 19/212 ENSP00000359654.1 Q15052-2

Frequencies

GnomAD3 genomes
AF:
0.0000179
AC:
2
AN:
111916
Hom.:
0
Cov.:
22
AF XY:
0.0000293
AC XY:
1
AN XY:
34086
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000376
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000218
AC:
4
AN:
183503
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67931
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000729
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000244
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000328
AC:
36
AN:
1096420
Hom.:
0
AF XY:
0.0000221
AC XY:
8
AN XY:
361854
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000568
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000405
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000179
AC:
2
AN:
111916
Hom.:
0
Cov.:
22
AF XY:
0.0000293
AC XY:
1
AN XY:
34086
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:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000376
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

ARHGEF6-related disorder Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesMar 13, 2023The ARHGEF6 c.2067_2069delACT variant is predicted to result in an in-frame deletion (p.Leu690del). To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.0073% of alleles in individuals of Latino descent in gnomAD (http://gnomad.broadinstitute.org/variant/X-135754244-GAGT-G). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenDec 01, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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: rs770180249; hg19: chrX-135754244; API