Gene
CPLX1
complexin 1
- HGNC 2309↗(opens in a new tab)
- Ensembl gene ENSG00000168993↗(opens in a new tab)
- NCBI Gene 10815↗(opens in a new tab)
Summary
- Cytogenetic location
- 4p16.3
- Coordinates
- Chromosome 4: 784,957–826,129 (GRCh38)
- Exons
- 4 exons across 41.2 kb
- Protein
- 134 amino acids
- Also known as
- CPX-I
- MANE Select transcript
- ENST00000304062.11NM_006651.4
- Locus type
- gene with protein product
- Very high
- Confident
- Low
- Very low
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
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Epilepsy (Full Panel)
- Epilepsy
One of 171 genes linked to it
A brain disorder characterized by episodes of abnormally increased neuronal discharge resulting in transient episodes of sensory or motor neurological dysfunction, or psychic dysfunction. These episodes may or may not be associated with loss of consciousness or convulsions.
- 1 GenCC submitter rates it definitive or strong
How CPLX1 is laid out
- Coding sequence
- Untranslated region
- Intron
- Direction of transcription
- Known disease-causing sites
- Stretches short reads find hard
Exons of the gene's MANE Select transcript (release v1.5), from NCBI and EMBL-EBI, on the GRCh38 reference genome.
Chromosome bands from UCSC's GRCh38 ideogram (2022-10-29).
Nearby genes from Ensembl release 116, on GRCh38.
Exons make up 2.1 kb of the gene's 41.2 kb; 405 of those bases code for the protein.
How a genome test reads CPLX1
3
positions in CPLX1 where ClinVar classes a change as pathogenic or likely pathogenic
None of them falls in a region short reads find hard.
A whole genome covers all 41.2 kb of CPLX1, introns included, not only the 2.1 kb of exons.
Genes linked to the same conditions
- AARS1alanyl-tRNA synthetase 1Shares 1 condition
- ABAT4-aminobutyrate aminotransferaseShares 1 condition
- ACTL6Bactin like 6BShares 1 condition
- ADAM22ADAM metallopeptidase domain 22Shares 1 condition
- ALDH7A1aldehyde dehydrogenase 7 family member A1Shares 1 condition
- ALG13ALG13 UDP-N-acetylglucosaminyltransferase subunitShares 1 condition
- AP3B2adaptor related protein complex 3 subunit beta 2Shares 1 condition
- ARHGEF9Cdc42 guanine nucleotide exchange factor 9Shares 1 condition
- ARV1ARV1 fatty acid homeostasis modulatorShares 1 condition
- ARXaristaless related homeoboxShares 1 condition
- ATP1A2ATPase Na+/K+ transporting subunit alpha 2Shares 1 condition
- ATP1A3ATPase Na+/K+ transporting subunit alpha 3Shares 1 condition
Traits linked to CPLX1
The Human Phenotype Ontology lists these as features of the rare conditions CPLX1 can cause. Each trait's page lists the other genes linked to it.
Abnormality of the nervous system
- Absent speech development
- Delayed ability to walk
- Epilepsy
- Epileptic encephalopathy
- Generalized myoclonic seizure
- Global developmental delay
- Grand mal seizures
- Inability to walk
Show 47 more traits
- Intellectual disability
- Ataxia
- Attention deficit
- EEG abnormality
- EEG with irregular generalized spike and wave complexes
- Intellectual disability, mild
- Intellectual disability, severe
- Aggressive behavior
- Bilateral tonic-clonic seizure with generalized onset
- Cerebral palsy
- Degeneration of cerebellum
- Difficulty sleeping
- EEG with focal spike waves
- EEG with generalized epileptiform discharges
- Epileptic spasm
- Generalized tonic seizure
- Generalized-onset seizure
- Incoordination
- Interictal EEG abnormality
- Irritability
- Jerking
- Loss of developmental milestones
- Mental deterioration
- Morphological central nervous system abnormality
- Myoclonic seizure
- Poor hand-eye coordination
- Repetitive movements
- Seizure affecting one half of brain
- Simple febrile seizure
- Tethered cord
- Thick cerebral cortex
- Abnormality of movement
- Absent/small cerebellum
- Agenesis of corpus callosum
- Brief seizures with staring spells
- Delayed fine motor development
- Delayed speech and language development
- Difficulty articulating speech
- Febrile seizure (within the age range of 3 months to 6 years)
- Language impairment
- Photosensitive tonic-clonic seizure
- Too much cerebrospinal fluid in the brain
- Paralysis on one side of body
- Absent septum pellucidum
- Cavum septum pellucidum
- Periventricular cysts
- Ventriculomegaly
Abnormality of head or neck
- Thin red part of the upper lip
- Abnormal lip
- Abnormality of the mouth
- Abnormality of the philtrum
- Abnormally small head
- Downturned corners of mouth
- Downward slanting of the opening between the eyelids
- Eye folds
Show 28 more traits
- Failure of development of between one and six teeth
- Frontal bossing
- High forehead
- High frontal hairline
- Highly arched eyebrow
- Little lower jaw
- Long, narrow head
- Low hairline at back of neck
- Short philtrum
- Wide nasal bridge
- Abnormality of craniofacial shape
- Beaked nose
- Bulbous nose
- Cleft of the mouth
- Cleft palate
- Cleft upper lip
- Cranial defect
- Delayed eruption of teeth
- Long philtrum
- Midface retrusion
- Pit in front of the ear
- Prominent area between the eyebrows
- Short upper lip
- Skin tag in front of the ear
- Taurodontia
- Thick eyebrow
- Eyelid spasm
- Webbed neck
External links
Gene records
Transcript
Protein
Where this comes from
- HGNC: the gene's symbol, name, other symbols and location.
- MANE Select v1.5, from NCBI and EMBL-EBI: the transcript, its exons and coding sequence.
- GenCC and ClinGen, released 2026-10-16: which conditions the gene is linked to, and how strongly.
- The ACMG secondary findings list, SF v3.2.
- ClinVar and the GIAB stratifications: known disease-causing sites, and the regions short reads find hard.
- The Human Phenotype Ontology, release 2026-09-01: the traits linked to the gene. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
Cite this page
Dante Labs. (n.d.). CPLX1 gene: complexin 1. Retrieved 17 October 2026, from https://dantelabs.com/genes/cplx1
Dante Labs. CPLX1 gene: complexin 1 [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/cplx1
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