11-110624201-A-G

Variant names:

• chr11-110624201-A-G
• rs193920992
• NM_001384657.1:c.464T>C
• ARHGAP20 p.Val155Ala

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001384657.1(ARHGAP20):​c.464T>C​(p.Val155Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: ARHGAP20 NM_001384657.1 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 7.92
• Publications: 1 publications found

Genes affected

ARHGAP20 (HGNC:18357): (Rho GTPase activating protein 20) The protein encoded by this gene is an activator of RHO-type GTPases, transducing a signal from RAP1 to RHO and impacting neurite outgrowth. [provided by RefSeq, Sep 2016]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001384657.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ARHGAP20	NM_001384657.1	MANE Select	c.464T>C	p.Val155Ala	missense	Exon 4 of 15	NP_001371586.1	Q9P2F6-1
	ARHGAP20	NM_020809.4		c.464T>C	p.Val155Ala	missense	Exon 5 of 16	NP_065860.2	Q9P2F6-1
	ARHGAP20	NM_001258415.2		c.395T>C	p.Val132Ala	missense	Exon 4 of 15	NP_001245344.1	Q9P2F6-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ARHGAP20	ENST00000683387.1	MANE Select	c.464T>C	p.Val155Ala	missense	Exon 4 of 15	ENSP00000507405.1	Q9P2F6-1
	ARHGAP20	ENST00000260283.8	TSL:1	c.464T>C	p.Val155Ala	missense	Exon 5 of 16	ENSP00000260283.4	Q9P2F6-1
	ARHGAP20	ENST00000524756.5	TSL:1	c.395T>C	p.Val132Ala	missense	Exon 4 of 15	ENSP00000432076.1	Q9P2F6-3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
-	1	-	Prostate cancer (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.91
BayesDel_addAF	Uncertain	0.094	D
BayesDel_noAF	Benign	-0.10
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.47	T
Eigen	Uncertain	0.52
Eigen_PC	Uncertain	0.39
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Uncertain	0.89	D
M_CAP	Benign	0.044	D
MetaRNN	Uncertain	0.74	D
MetaSVM	Benign	-0.62	T
MutationAssessor	Uncertain	2.8	M
PhyloP100		7.9
PrimateAI	Uncertain	0.68	T
PROVEAN	Uncertain	-3.5	D
REVEL	Uncertain	0.36
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.0040	D
Varity_R		0.71
gMVP		0.54
Mutation Taster		=78/22	polymorphism

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs193920992; hg19: chr11-110494925; COSMIC: COSV52808662;