12-57472521-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_032496.4(ARHGAP9):c.2192C>G(p.Pro731Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: ARHGAP9 NM_032496.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.989

Genes affected

ARHGAP9 (HGNC:14130): (Rho GTPase activating protein 9) This gene encodes a member of the Rho-GAP family of GTPase activating proteins. The protein has substantial GAP activity towards several Rho-family GTPases in vitro, converting them to an inactive GDP-bound state. It is implicated in regulating adhesion of hematopoietic cells to the extracellular matrix. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ACMG classification

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=0.18786824).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ARHGAP9	NM_032496.4	c.2192C>G	p.Pro731Arg	missense_variant	18/18	ENST00000393791.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ARHGAP9	ENST00000393791.8	c.2192C>G	p.Pro731Arg	missense_variant	18/18	1	NM_032496.4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 17, 2023

The c.2192C>G (p.P731R) alteration is located in exon 18 (coding exon 17) of the ARHGAP9 gene. This alteration results from a C to G substitution at nucleotide position 2192, causing the proline (P) at amino acid position 731 to be replaced by an arginine (R). 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	0.12
BayesDel_addAF	Benign	-0.078	T
BayesDel_noAF	Benign	-0.35
Cadd	Benign	23
Dann	Uncertain	1.0
Eigen	Benign	-0.13
Eigen_PC	Benign	-0.22
FATHMM_MKL	Benign	0.66	D
LIST_S2	Benign	0.77	T;T;T
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.19	T;T;T
MetaSVM	Benign	-1.1	T
MutationTaster	Benign	1.0	D;N;N;N;N
PrimateAI	Benign	0.37	T
PROVEAN	Benign	-1.8	N;N;N
REVEL	Benign	0.15
Sift	Pathogenic	0.0	D;D;D
Sift4G	Pathogenic	0.0	D;D;D
Polyphen		0.0010	B;.;.
Vest4		0.15
MVP		0.41
MPC		1.6
ClinPred		0.75	D
GERP RS		3.0
gMVP		0.33

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr12-57866304;