Genetic Variant ARHGEF28:p.Val89Leu (chr5-73752992-G-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001177693.2(ARHGEF28):c.265G>C(p.Val89Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000197 in 152,228 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. V89V) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Consequence

ARHGEF28
NM_001177693.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.33

Variant links:

Genes affected

ARHGEF28 (HGNC:30322): (Rho guanine nucleotide exchange factor 28) This gene encodes a member of the Rho guanine nucleotide exchange factor family. The encoded protein interacts with low molecular weight neurofilament mRNA and may be involved in the formation of amyotrophic lateral sclerosis neurofilament aggregates. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Apr 2010]

ARHGEF28 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.16122654).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ARHGEF28	NM_001177693.2 link	c.265G>C	p.Val89Leu	missense_variant	Exon 4 of 36	ENST00000513042.7	NP_001171164.1	Q8N1W1-1
ARHGEF28	NM_001080479.3 link	c.265G>C	p.Val89Leu	missense_variant	Exon 4 of 37		NP_001073948.2	Q8N1W1-6
ARHGEF28	NM_001388078.1 link	c.265G>C	p.Val89Leu	missense_variant	Exon 4 of 35		NP_001375007.1
ARHGEF28	NM_001388076.1 link	c.181+3008G>C		intron_variant	Intron 3 of 34		NP_001375005.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ARHGEF28	ENST00000513042.7 link	c.265G>C	p.Val89Leu	missense_variant	Exon 4 of 36	5	NM_001177693.2	ENSP00000441436.1		Q8N1W1-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152228

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000403

AC:

AN:

248172

Hom.:

AF XY:

0.00000743

AC XY:

AN XY:

134602

show subpopulations

Gnomad AFR exome

AF:

0.0000651

Gnomad AMR exome

AF:

0.00

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152228

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74362

show subpopulations

Gnomad4 AFR

AF:

0.0000482

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ESP6500AA

AF:

0.000233

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00000825

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 29, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.265G>C (p.V89L) alteration is located in exon 4 (coding exon 3) of the ARHGEF28 gene. This alteration results from a G to C substitution at nucleotide position 265, causing the valine (V) at amino acid position 89 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.46

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0046

.;.;T;.;T

Eigen

Benign

0.045

Eigen_PC

Benign

0.19

FATHMM_MKL

Uncertain

0.82

LIST_S2

Benign

0.74

T;T;T;.;.

M_CAP

Benign

0.0041

MetaRNN

Benign

0.16

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

L;L;L;L;L

PrimateAI

Uncertain

0.62

PROVEAN

Benign

-0.42

N;N;N;N;N

REVEL

Benign

0.049

Sift

Benign

0.19

T;T;T;T;T

Sift4G

Benign

0.20

T;T;T;T;T

Polyphen

0.14

B;.;B;.;B

Vest4

0.40

MutPred

0.33

Gain of catalytic residue at M84 (P = 0.0301);Gain of catalytic residue at M84 (P = 0.0301);Gain of catalytic residue at M84 (P = 0.0301);Gain of catalytic residue at M84 (P = 0.0301);Gain of catalytic residue at M84 (P = 0.0301);

MVP

0.27

MPC

0.090

ClinPred

0.080

GERP RS

4.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.060

gMVP

0.31

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over