1-161048217-C-G

Variant names:

• chr1-161048217-C-G
• rs367826999
• NM_001025598.2:c.2804G>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001025598.2(ARHGAP30):​c.2804G>C​(p.Arg935Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,866 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R935H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: ARHGAP30 NM_001025598.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.12
• Publications: 0 publications found

Genes affected

ARHGAP30 (HGNC:27414): (Rho GTPase activating protein 30) Predicted to enable GTPase activator activity. Predicted to be involved in small GTPase mediated signal transduction. Located in intracellular membrane-bounded organelle. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.25806963).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001025598.2. 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
	ARHGAP30	NM_001025598.2	MANE Select	c.2804G>C	p.Arg935Pro	missense	Exon 12 of 12	NP_001020769.1	Q7Z6I6-1
	ARHGAP30	NM_001287600.2		c.2360G>C	p.Arg787Pro	missense	Exon 11 of 11	NP_001274529.1	Q7Z6I6-3
	ARHGAP30	NM_001287602.2		c.2273G>C	p.Arg758Pro	missense	Exon 8 of 8	NP_001274531.1	A0A0A0MRJ8

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ARHGAP30	ENST00000368013.8	TSL:2 MANE Select	c.2804G>C	p.Arg935Pro	missense	Exon 12 of 12	ENSP00000356992.3	Q7Z6I6-1
	ARHGAP30	ENST00000368015.1	TSL:5	c.2273G>C	p.Arg758Pro	missense	Exon 8 of 8	ENSP00000356994.1	A0A0A0MRJ8
	ARHGAP30	ENST00000368016.7	TSL:5	c.2171G>C	p.Arg724Pro	missense	Exon 13 of 13	ENSP00000356995.3	A0A0A0MRJ9

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000399 AC: 1 AN: 250446 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.0000463

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461866 Hom.: 0 Cov.: 41 AF XY: 0.00 AC XY: 0 AN XY: 727238

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.0000187 AC: 1 AN: 53394

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112012

Other (OTH) AF: 0.00 AC: 0 AN: 60396

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.57
BayesDel_addAF	Benign	-0.035	T
BayesDel_noAF	Benign	-0.29
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.20	T
Eigen	Uncertain	0.27
Eigen_PC	Uncertain	0.24
FATHMM_MKL	Benign	0.73	D
LIST_S2	Uncertain	0.92	D
M_CAP	Benign	0.031	D
MetaRNN	Benign	0.26	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.9	L
PhyloP100		1.1
PrimateAI	Benign	0.44	T
PROVEAN	Benign	-1.3	N
REVEL	Benign	0.14
Sift	Uncertain	0.0010	D
Sift4G	Benign	0.20	T
Polyphen		0.99	D
Vest4		0.44
MutPred		0.37		Loss of sheet (P = 0.007)
MVP		0.29
MPC		0.24
ClinPred		0.68	D
GERP RS		2.6
Varity_R		0.46
gMVP		0.15
Mutation Taster		=86/14	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

Other links and lift over

dbSNP: rs367826999; hg19: chr1-161018007;