CCDC9
protein-codingcoiled-coil domain containing 9
Gene summary
Enables RNA binding activity. Part of exon-exon junction complex. [provided by Alliance of Genome Resources, Jul 2025]
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~17.7 kbGenCC 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 CCDC9 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_015603.3. 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.
| Effect | PathogenicP | Likely pathogenicLP | VUS | Likely benignLB | BenignB | Sum |
|---|---|---|---|---|---|---|
| synonymous | 2 | 1 | 3 | |||
| missense | 130 | 3 | 133 | |||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 5 | 1 | 6 | |||
| Total | 0 | 0 | 137 | 5 | 0 | 142 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_056418.1 | 11 | MANE Select | |
| Ensembl | ENSP00000221922.5 | 11 | MANE Select | |
| Ensembl | ENSP00000470706.1 | 3 | Standard | |
| Ensembl | ENSP00000472843.1 | 3 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Molecular Function
- RNA binding
- protein binding
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000221922
- Coding exons
- 11
- Length
- 15974
- Individuals with no LoFs
- 125729
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 16
- Defined
- 125745
- p
- 0.0000636
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | -0.179 | 344 | 335 | 1.03 | 0.0000227 | 3361 |
| Missense (PolyPhen) | 118 | 137 | 0.8613 | 1217 | ||
| Synonymous | -1.42 | 142 | 122 | 1.16 | 0.00000739 | 1056 |
| Loss of Function | 2.62 | 12 | 26.5 | 0.452 | 0.00000149 | 290 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0.000063 | 0.000062 | rare |
| Latino/Admixed American | 0 | 0.0 | absent |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0 | 0.0 | absent |
| Finnish | 0.00025 | 0.00023 | rare |
| European (Non-Finnish) | 0.000054 | 0.000053 | rare |
| South Asian | 0.000099 | 0.000098 | rare |
| Other | 0.00017 | 0.00016 | rare |
dbNSFP Gene Annotations
Source:
Intolerance Scores
- LoFtool
- 0.639
- RVIS EVS
- 0.11
- RVIS percentile EVS
- 62.14
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- N
- Essential (gene trap)
- N
- Indispensability pred.
- N
- Indispensability score
- 0.372
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |