chr12-57478665-G-A

Position:

• chr12-57478665-G-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_Strong BS1_Supporting BS2

The NM_032496.4(ARHGAP9):​c.409C>T​(p.Arg137Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000527 in 1,614,144 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars). Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin UniProt.

• Frequency:
  • Genomes: 𝑓 0.00031 (1 hom., cov: 32)
  • Exomes 𝑓: 0.00055 (7 hom.)
• Consequence: ARHGAP9 NM_032496.4 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 1.40

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]

MARS1 (HGNC:6898): (methionyl-tRNA synthetase 1) This gene encodes a member of the class I family of aminoacyl-tRNA synthetases. These enzymes play a critical role in protein biosynthesis by charging tRNAs with their cognate amino acids. The encoded protein is a component of the multi-tRNA synthetase complex and catalyzes the ligation of methionine to tRNA molecules. [provided by RefSeq, Jan 2011]

ACMG classification

Verdict is Benign. Variant got -9 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.0070458353).
• BS1: Variant frequency is greater than expected in population eas. gnomad4_exome allele frequency = 0.00055 (804/1461888) while in subpopulation EAS AF= 0.0175 (694/39700). AF 95% confidence interval is 0.0164. There are 7 homozygotes in gnomad4_exome. There are 413 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
• BS2: High Homozygotes in GnomAdExome4 at 7 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ARHGAP9	NM_032496.4	c.409C>T	p.Arg137Cys	missense_variant	3/18	ENST00000393791.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ARHGAP9	ENST00000393791.8	c.409C>T	p.Arg137Cys	missense_variant	3/18	1	NM_032496.4

Frequencies

GnomAD3 genomes AF: 0.000309 AC: 47 AN: 152138 Hom.: 1 Cov.: 32

Gnomad AFR AF: 0.0000724

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000131

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00695

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000735

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.000513 AC: 129 AN: 251472 Hom.: 1 AF XY: 0.000493 AC XY: 67 AN XY: 135908

Gnomad AFR exome AF: 0.0000615

Gnomad AMR exome AF: 0.000260

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00522

Gnomad SAS exome AF: 0.000523

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000352

Gnomad OTH exome AF: 0.000489

GnomAD4 exome AF: 0.000550 AC: 804 AN: 1461888 Hom.: 7 Cov.: 31 AF XY: 0.000568 AC XY: 413 AN XY: 727244

Gnomad4 AFR exome AF: 0.0000597

Gnomad4 AMR exome AF: 0.000201

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0175

Gnomad4 SAS exome AF: 0.000661

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000225

Gnomad4 OTH exome AF: 0.000281

GnomAD4 genome AF: 0.000309 AC: 47 AN: 152256 Hom.: 1 Cov.: 32 AF XY: 0.000282 AC XY: 21 AN XY: 74450

Gnomad4 AFR AF: 0.0000722

Gnomad4 AMR AF: 0.000131

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00697

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000735

Gnomad4 OTH AF: 0.00

Alfa AF: 0.000308 Hom.: 1

Bravo AF: 0.000268

ESP6500AA AF: 0.000227 AC: 1

ESP6500EA AF: 0.000116 AC: 1

ExAC AF: 0.000610 AC: 74

Asia WGS AF: 0.00202 AC: 7 AN: 3478

EpiCase AF: 0.000109

EpiControl AF: 0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, no assertion criteria provided

literature only

Richard Lifton Laboratory, Yale University School of Medicine

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.093
BayesDel_addAF	Benign	-0.57	T
BayesDel_noAF	Benign	-0.59
CADD	Benign	20
DANN	Benign	0.95
DEOGEN2	Benign	0.016	.;.;.;T;T
Eigen	Benign	-0.36
Eigen_PC	Benign	-0.28
FATHMM_MKL	Benign	0.64	D
LIST_S2	Benign	0.55	T;T;T;.;T
MetaRNN	Benign	0.0070	T;T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.0	N;N;.;.;.
MutationTaster	Benign	1.0	N;N;N;N
PrimateAI	Benign	0.35	T
PROVEAN	Benign	-1.1	N;N;N;.;N
REVEL	Benign	0.044
Sift	Uncertain	0.013	D;D;D;.;D
Sift4G	Uncertain	0.027	D;D;D;D;D
Polyphen		0.067	B;.;.;.;.
Vest4		0.24
MVP		0.62
MPC		0.061
ClinPred		0.022	T
GERP RS		3.6
gMVP		0.39

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

Other links and lift over

dbSNP: rs3802989; hg19: chr12-57872448;