rs752378325

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2BP6_ModerateBS2

The NM_031443.4(CCM2):​c.810C>G​(p.Phe270Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,460,920 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

CCM2
NM_031443.4 missense

Scores

1
4
14

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.0250

Publications

0 publications found
Variant links:
Genes affected
CCM2 (HGNC:21708): (CCM2 scaffold protein) This gene encodes a scaffold protein that functions in the stress-activated p38 Mitogen-activated protein kinase (MAPK) signaling cascade. The protein interacts with SMAD specific E3 ubiquitin protein ligase 1 (also known as SMURF1) via a phosphotyrosine binding domain to promote RhoA degradation. The protein is required for normal cytoskeletal structure, cell-cell interactions, and lumen formation in endothelial cells. Mutations in this gene result in cerebral cavernous malformations. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Nov 2009]
CCM2 Gene-Disease associations (from GenCC):
  • cerebral cavernous malformation 2
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
  • famililal cerebral cavernous malformations
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP6
Variant 7-45073466-C-G is Benign according to our data. Variant chr7-45073466-C-G is described in ClinVar as Likely_benign. ClinVar VariationId is 261973.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CCM2NM_031443.4 linkc.810C>G p.Phe270Leu missense_variant Exon 8 of 10 ENST00000258781.11 NP_113631.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CCM2ENST00000258781.11 linkc.810C>G p.Phe270Leu missense_variant Exon 8 of 10 1 NM_031443.4 ENSP00000258781.7

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.00000399
AC:
1
AN:
250342
AF XY:
0.00000737
show subpopulations
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:
0.00
Gnomad NFE exome
AF:
0.00000886
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1460920
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
726806
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33472
American (AMR)
AF:
0.00
AC:
0
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86250
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52854
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.00000450
AC:
5
AN:
1111664
Other (OTH)
AF:
0.00
AC:
0
AN:
60372
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
1
1
2
2
3
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
Cov.:
33
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.67
BayesDel_addAF
Benign
0.0022
T
BayesDel_noAF
Benign
-0.23
CADD
Benign
9.1
DANN
Benign
0.75
DEOGEN2
Benign
0.18
T;.;.;T;.;T
Eigen
Benign
-0.26
Eigen_PC
Benign
-0.37
FATHMM_MKL
Benign
0.58
D
LIST_S2
Uncertain
0.89
D;D;T;D;D;D
M_CAP
Benign
0.039
D
MetaRNN
Uncertain
0.43
T;T;T;T;T;T
MetaSVM
Benign
-0.83
T
MutationAssessor
Uncertain
2.1
M;.;.;.;.;.
PhyloP100
-0.025
PrimateAI
Uncertain
0.64
T
PROVEAN
Benign
-2.1
N;N;N;N;N;N
REVEL
Benign
0.21
Sift
Benign
0.15
T;D;T;T;T;D
Sift4G
Benign
0.13
T;T;T;T;T;T
Polyphen
0.97
D;.;.;.;.;.
Vest4
0.58
MutPred
0.23
Gain of phosphorylation at S273 (P = 0.2003);.;.;.;.;.;
MVP
0.52
MPC
0.35
ClinPred
0.15
T
GERP RS
1.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.8
Varity_R
0.095
gMVP
0.30
Mutation Taster
=50/50

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: rs752378325; hg19: chr7-45113065; API