CCDC33

protein-coding

coiled-coil domain containing 33, the group of C2 domain containing

Gene summary

Predicted to be active in peroxisome. [provided by Alliance of Genome Resources, Jul 2025]

MANE transcript

NM_025055.5

Inheritance

—

ClinVar variants

U:131B:17

Top phenotype

CCDC33-related disorder

gnomAD constraint

pLI —, LoF o/e 0.82

Max pathogenic AF

—

Genomic locus

chr15:74,202,705-74,336,472

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~133.8 kb
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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 CCDC33 variants in ClinVar

3 Conditions Cataloged
not specifiedTotal: 143
CCDC33-related disorderTotal: 3
not providedTotal: 1

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_025055.5. 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
1
clinvar
1
missense
131
clinvar
16
clinvar
147
nonsense
0
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
0
Total00131170148
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 24 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_025055.5RefSeqNP_079331.319MANE Select
ENST00000398814.8EnsemblENSP00000381795.319MANE Select
NM_001287181.2RefSeqNP_001274110.18Standard
NM_182791.4RefSeqNP_877592.29Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Molecular Function

  • protein binding

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000398814
Coding exons
19
Length
119201
Individuals with no LoFs
124646
Homozygous LoFs
0
Heterozygous LoFs
167
Defined
124813
p
0.000669
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense-0.005924284281.000.00002474892
Missense (PolyPhen)151151.870.99431689
Synonymous-0.02311761761.000.00001001497
Loss of Function1.053441.30.8240.00000222459

Population LoF Frequency

PopulationCAFp-valueStatus
African0.00300.0030notable
Latino/Admixed American0.000720.00072rare
Ashkenazi Jewish0.000200.00020rare
East Asian0.000500.00045rare
Finnish0.000230.00023rare
European (Non-Finnish)0.000520.00052rare
South Asian0.000660.00065rare
Other0.000170.00016rare

dbNSFP Gene Annotations

Source: dbNSFP

Recessive Scores

pRec
0.0870

Intolerance Scores

LoFtool
0.941
RVIS EVS
1.14
RVIS percentile EVS
92.34

Essentials

Essential (CRISPR)
E
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
N
Indispensability score
0.471

Gene Damage Prediction

AllRecessiveDominant
MendelianHighMediumMedium
Primary ImmunodeficiencyHighHighHigh
CancerHighHighHigh
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