CCM2L

protein-coding

CCM2 like scaffold protein

Gene summary

Predicted to be involved in heart morphogenesis. Predicted to act upstream of or within several processes, including heart development; negative regulation of homotypic cell-cell adhesion; and positive regulation of fibroblast growth factor production. [provided by Alliance of Genome Resources, Jun 2026]

Previous symbols:
  • C20orf160

MANE transcript

NM_001365692.1

Inheritance

—

ClinVar variants

U:69

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.68

Max pathogenic AF

—

Genomic locus

chr20:32,010,438-32,032,180

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~21.7 kb
Loading mutation effect viewer...

GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

No GenCC data available for this gene.

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to CCM2L variants in ClinVar

1 Conditions Cataloged
not specifiedTotal: 63

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_001365692.1. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
4
clinvar
4
missense
64
clinvar
64
nonsense
0
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
1
clinvar
1
Total00690069
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 19 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_001365692.1RefSeqNP_001352621.110MANE Select
ENST00000452892.3EnsemblENSP00000392448.210MANE Select
NM_080625.4RefSeqNP_542192.28Standard
ENST00000262659.12EnsemblENSP00000262659.88Standard

Model Organisms & Knockout Phenotypes

Observed phenotypic effects in mouse and zebrafish models

Gene / ModelOrganismObserved Phenotype
ccm2lDanio rerio

Structure: subintestinal vein

Quality: disheveled

abnormal

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Biological Process

  • cardiac atrium morphogenesis
  • ventricular trabecula myocardium morphogenesis
  • biological_process
  • negative regulation of protein binding
  • negative regulation of homotypic cell-cell adhesion

Molecular Function

  • molecular_function

Cellular Component

  • cellular_component

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000262659
Coding exons
8
Length
21740
Individuals with no LoFs
125696
Homozygous LoFs
0
Heterozygous LoFs
52
Defined
125748
p
0.000207
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense0.9101511860.8120.00001052722
Missense (PolyPhen)5877.7610.74587996
Synonymous0.6906976.70.9000.00000426927
Loss of Function1.251217.60.6809.14e-7213

Population LoF Frequency

PopulationCAFp-valueStatus
African0.000130.00012rare
Latino/Admixed American0.000710.00069rare
Ashkenazi Jewish0.000200.00020rare
East Asian0.000180.00016rare
Finnish0.000280.00028rare
European (Non-Finnish)0.0000980.000097rare
South Asian0.0000340.000033rare
Other0.000490.00049rare

dbNSFP Gene Annotations

Source: dbNSFP

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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