rs1010729751

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_002890.3(RASA1):​c.17C>T​(p.Ala6Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000142 in 1,550,696 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

RASA1
NM_002890.3 missense

Scores

1
1
16

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 1.51

Publications

0 publications found
Variant links:
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]
RASA1 Gene-Disease associations (from GenCC):
  • capillary malformation-arteriovenous malformation 1
    Inheritance: AD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics, G2P
  • capillary malformation-arteriovenous malformation syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Parkes Weber syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • cardiofaciocutaneous syndrome
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • Costello syndrome
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • Noonan syndrome
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • Noonan syndrome with multiple lentigines
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • Noonan syndrome-like disorder with loose anagen hair
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • telangiectasia, hereditary hemorrhagic, type 1
    Inheritance: AD Classification: NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.077499956).
BS2
High AC in GnomAdExome4 at 21 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002890.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RASA1
NM_002890.3
MANE Select
c.17C>Tp.Ala6Val
missense
Exon 1 of 25NP_002881.1P20936-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RASA1
ENST00000274376.11
TSL:1 MANE Select
c.17C>Tp.Ala6Val
missense
Exon 1 of 25ENSP00000274376.6P20936-1
RASA1
ENST00000515800.6
TSL:1
n.17C>T
non_coding_transcript_exon
Exon 1 of 26ENSP00000423395.2P20936-3
RASA1
ENST00000888490.1
c.17C>Tp.Ala6Val
missense
Exon 1 of 25ENSP00000558549.1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152056
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000131
AC:
2
AN:
153154
AF XY:
0.0000244
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000404
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000172
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000150
AC:
21
AN:
1398640
Hom.:
0
Cov.:
32
AF XY:
0.0000217
AC XY:
15
AN XY:
689724
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31830
American (AMR)
AF:
0.0000560
AC:
2
AN:
35728
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25086
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36208
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79342
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48600
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4430
European-Non Finnish (NFE)
AF:
0.0000139
AC:
15
AN:
1079558
Other (OTH)
AF:
0.0000691
AC:
4
AN:
57858
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152056
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74280
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
41398
American (AMR)
AF:
0.00
AC:
0
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5160
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4816
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68006
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.325
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Capillary malformation-arteriovenous malformation syndrome (1)
-
1
-
Cardiovascular phenotype (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.22
T
Eigen
Benign
-0.55
Eigen_PC
Benign
-0.41
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.72
T
M_CAP
Benign
0.062
D
MetaRNN
Benign
0.077
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.20
N
PhyloP100
1.5
PrimateAI
Pathogenic
0.88
D
PROVEAN
Benign
-0.030
N
REVEL
Benign
0.13
Sift
Benign
0.28
T
Sift4G
Benign
0.54
T
Polyphen
0.0
B
Vest4
0.13
MutPred
0.23
Gain of sheet (P = 0.0085)
MVP
0.52
MPC
0.17
ClinPred
0.13
T
GERP RS
1.1
PromoterAI
-0.097
Neutral
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.1
Varity_R
0.040
gMVP
0.15
Mutation Taster
=98/2
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

Publications

Other links and lift over

dbSNP: rs1010729751; hg19: chr5-86564285; API