rs111840875

Variant names:

• chr5-87268747-C-G
• NM_002890.3:c.296C>G

Your query was ambiguous. Multiple possible variants found:

• chr5-87268747-C-G
• chr5-87268747-C-T

Variant summary

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

The NM_002890.3(RASA1):​c.296C>G​(p.Ala99Gly) 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 1,461,178 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict 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. A99V) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: RASA1 NM_002890.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0510

Genes affected

RASA1 (HGNC:9871): (RAS p21 protein activator 1) The protein encoded by this gene is located in the cytoplasm and is part of the GAP1 family of GTPase-activating proteins. The gene product stimulates the GTPase activity of normal RAS p21 but not its oncogenic counterpart. Acting as a suppressor of RAS function, the protein enhances the weak intrinsic GTPase activity of RAS proteins resulting in the inactive GDP-bound form of RAS, thereby allowing control of cellular proliferation and differentiation. Mutations leading to changes in the binding sites of either protein are associated with basal cell carcinomas. Mutations also have been associated with hereditary capillary malformations (CM) with or without arteriovenous malformations (AVM) and Parkes Weber syndrome. Alternative splicing results in two isoforms where the shorter isoform, lacking the N-terminal hydrophobic region but retaining the same activity, appears to be abundantly expressed in placental but not adult tissues. [provided by RefSeq, May 2012]

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=0.08406952).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RASA1	NM_002890.3	c.296C>G	p.Ala99Gly	missense_variant	Exon 1 of 25	ENST00000274376.11	NP_002881.1
RASA1	NM_022650.3	c.-301C>G		upstream_gene_variant			NP_072179.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RASA1	ENST00000274376.11	c.296C>G	p.Ala99Gly	missense_variant	Exon 1 of 25	1	NM_002890.3	ENSP00000274376.6

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461178 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 726904

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.073
BayesDel_addAF	Benign	-0.18	T
BayesDel_noAF	Benign	-0.50
CADD	Benign	16
DANN	Benign	0.63
DEOGEN2	Benign	0.22	T
Eigen	Benign	-0.92
Eigen_PC	Benign	-0.92
FATHMM_MKL	Benign	0.19	N
LIST_S2	Benign	0.68	T
M_CAP	Benign	0.074	D
MetaRNN	Benign	0.084	T
MetaSVM	Benign	-0.92	T
MutationAssessor	Benign	0.0	N
PrimateAI	Uncertain	0.73	T
PROVEAN	Benign	-0.15	N
REVEL	Benign	0.15
Sift	Benign	0.31	T
Sift4G	Benign	0.37	T
Polyphen		0.0	B
Vest4		0.20
MutPred		0.31		Loss of helix (P = 0.0068);
MVP		0.60
MPC		0.14
ClinPred		0.078	T
GERP RS		0.62
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.048
gMVP		0.16

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr5-86564564;