CDK5
protein-codingcyclin dependent kinase 5, the group of Cyclin dependent kinases
Gene summary
This gene encodes a proline-directed serine/threonine kinase that is a member of the cyclin-dependent kinase family of proteins. Unlike other members of the family, the protein encoded by this gene does not directly control cell cycle regulation. Instead the protein, which is predominantly expressed at high levels in mammalian postmitotic central nervous system neurons, functions in diverse processes such as synaptic plasticity and neuronal migration through phosphorylation of proteins required for cytoskeletal organization, endocytosis and exocytosis, and apoptosis. In humans, an allelic variant of the gene that results in undetectable levels of the protein has been associated with lethal autosomal recessive lissencephaly-7. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2015]
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~4.1 kbGenCC Phenotypes & Disease Associations
Curated gene-disease validity assertions and inheritance patterns
Inheritance Pattern: AR
Disease ID:MONDO:0019450
Submitter: ClinGen
*CDK5* was originally reported in cases of lissencephaly 7 with cerebellar hypoplasia in 2015 (PMID: 25560765). This initial report included a large consanguineous family with 10 affected individuals, 4 of them were genetically studied, and found to have homozygous IVS8+1G>A (c.580+1G>A). Linkage study of this family identified a candidate region on 7q35-q36.1, with a maximum multipoint LOD score of 4.87. Targeted sequencing of *CDK5* was followed by exome sequencing of one affected individual to identify the variant. RNA and protein studies using the fibroblasts of an affected individual confirmed a lack of wild-type *CDK5* RNA and protein products. A knockout mouse model (PMID: 8855328), CRISPR/Cas9-based knockdown of *Cdk5* in the ferret brain (PMID: 28854363) and a functional study of the role of Cdk5 on another lissencephaly gene, *Dcx* (PMID: 14741103) were scored as functional evidence. In total, it was interpreted that there is moderate level of evidence to suggest that the*CDK5* gene is related to to lissencephaly 7 with cerebellar hypoplasia. This curation was approved by the Brain Malformation Panel on 07/11/2023.
Inheritance Pattern: AR
Disease ID:MONDO:0014596
Submitter: Ambry Genetics
Inheritance Pattern: AR
Disease ID:MONDO:0014596
Submitter: Ambry Genetics
Inheritance Pattern: AR
Disease ID:MONDO:0014596
Submitter: Labcorp Genetics (formerly Invitae)
Clinical Genomic Database (CGD)
Manifestation: Craniofacial; Musculoskeletal; Neurologic
Intervention: General
Rationale: Genetic knowledge may be beneficial related to issues such as selection of optimal supportive care, informed medical decision-making, prognostic considerations, and avoidance of unnecessary testing
ClinVar Associated Diseases & Phenotypes
Reported disease conditions connected to CDK5 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_004935.4. 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 | 29 | 29 | ||||
| missense | 1 | 13 | 14 | |||
| nonsense | 1 | 1 | ||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 1 | 4 | 5 | |||
| Total | 1 | 1 | 18 | 29 | 0 | 49 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_004926.1 | 12 | MANE Select | |
| Ensembl | ENSP00000419782.1 | 12 | MANE Select | |
| RefSeq | NP_001157882.1 | 11 | Standard | |
| Ensembl | ENSP00000297518.4 | 11 | Standard |
Model Organisms & Knockout Phenotypes
Observed phenotypic effects in mouse and zebrafish models
| Gene / Model | Organism | Observed Phenotype |
|---|---|---|
| cdk5 | Danio rerio | Structure: Rohon-Beard neuron Quality: displaced to abnormal |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Alzheimer,s disease - Homo sapiens (human)
- Axon guidance - Homo sapiens (human)
- Cocaine addiction - Homo sapiens (human)
- Nicotine Pathway (Dopaminergic Neuron), Pharmacodynamics
- miRNA Regulation of DNA Damage Response
Biological Process
- microtubule cytoskeleton organization
- neuron migration
- synaptic transmission, dopaminergic
- protein phosphorylation
- intracellular protein transport
Molecular Function
- p53 binding
- protein kinase activity
- protein serine/threonine kinase activity
- cyclin-dependent protein serine/threonine kinase activity
- ErbB-2 class receptor binding
Cellular Component
- nucleus
- nucleoplasm
- cytoplasm
- cytosol
- microtubule
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000485972
- Coding exons
- 12
- Length
- 4719
- Individuals with no LoFs
- 124648
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 7
- Defined
- 124655
- p
- 0.0000281
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 3.07 | 56 | 168 | 0.334 | 0.00000939 | 1876 |
| Missense (PolyPhen) | 22 | 80.58 | 0.27302 | 900 | ||
| Synonymous | 0.0288 | 75 | 75.3 | 0.996 | 0.00000492 | 552 |
| Loss of Function | 2.94 | 5 | 18.7 | 0.267 | 9.47e-7 | 211 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0 | 0.0 | absent |
| Latino/Admixed American | 0 | 0.0 | absent |
| Ashkenazi Jewish | 0.000099 | 0.000099 | rare |
| East Asian | 0 | 0.0 | absent |
| Finnish | 0.000093 | 0.000093 | rare |
| European (Non-Finnish) | 0.000035 | 0.000035 | rare |
| South Asian | 0 | 0.0 | absent |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Proline-directed serine/threonine-protein kinase essential for neuronal cell cycle arrest and differentiation and may be involved in apoptotic cell death in neuronal diseases by triggering abortive cell cycle re-entry. Interacts with D1 and D3- type G1 cyclins. Phosphorylates SRC, NOS3, VIM/vimentin, p35/CDK5R1, MEF2A, SIPA1L1, SH3GLB1, PXN, PAK1, MCAM/MUC18, SEPT5, SYN1, DNM1, AMPH, SYNJ1, CDK16, RAC1, RHOA, CDC42, TONEBP/NFAT5, MAPT/TAU, MAP1B, histone H1, p53/TP53, HDAC1, APEX1, PTK2/FAK1, huntingtin/HTT, ATM, MAP2, NEFH and NEFM. Regulates several neuronal development and physiological processes including neuronal survival, migration and differentiation, axonal and neurite growth, synaptogenesis, oligodendrocyte differentiation, synaptic plasticity and neurotransmission, by phosphorylating key proteins. Activated by interaction with CDK5R1 (p35) and CDK5R2 (p39), especially in post-mitotic neurons, and promotes CDK5R1 (p35) expression in an autostimulation loop. Phosphorylates many downstream substrates such as Rho and Ras family small GTPases (e.g. PAK1, RAC1, RHOA, CDC42) or microtubule-binding proteins (e.g. MAPT/TAU, MAP2, MAP1B), and modulates actin dynamics to regulate neurite growth and/or spine morphogenesis. Phosphorylates also exocytosis associated proteins such as MCAM/MUC18, SEPT5, SYN1, and CDK16/PCTAIRE1 as well as endocytosis associated proteins such as DNM1, AMPH and SYNJ1 at synaptic terminals. In the mature central nervous system (CNS), regulates neurotransmitter movements by phosphorylating substrates associated with neurotransmitter release and synapse plasticity; synaptic vesicle exocytosis, vesicles fusion with the presynaptic membrane, and endocytosis. Promotes cell survival by activating anti-apoptotic proteins BCL2 and STAT3, and negatively regulating of JNK3/MAPK10 activity. Phosphorylation of p53/TP53 in response to genotoxic and oxidative stresses enhances its stabilization by preventing ubiquitin ligase-mediated proteasomal degradation, and induces transactivation of p53/TP53 target genes, thus regulating apoptosis. Phosphorylation of p35/CDK5R1 enhances its stabilization by preventing calpain-mediated proteolysis producing p25/CDK5R1 and avoiding ubiquitin ligase-mediated proteasomal degradation. During aberrant cell-cycle activity and DNA damage, p25/CDK5 activity elicits cell-cycle activity and double-strand DNA breaks that precedes neuronal death by deregulating HDAC1. DNA damage triggered phosphorylation of huntingtin/HTT in nuclei of neurons protects neurons against polyglutamine expansion as well as DNA damage mediated toxicity. Phosphorylation of PXN reduces its interaction with PTK2/FAK1 in matrix-cell focal adhesions (MCFA) during oligodendrocytes (OLs) differentiation. Negative regulator of Wnt/beta-catenin signaling pathway. Activator of the GAIT (IFN-gamma-activated inhibitor of translation) pathway, which suppresses expression of a post-transcriptional regulon of proinflammatory genes in myeloid cells; phosphorylates the linker domain of glutamyl-prolyl tRNA synthetase (EPRS) in a IFN-gamma- dependent manner, the initial event in assembly of the GAIT complex. Phosphorylation of SH3GLB1 is required for autophagy induction in starved neurons. Phosphorylation of TONEBP/NFAT5 in response to osmotic stress mediates its rapid nuclear localization. MEF2 is inactivated by phosphorylation in nucleus in response to neurotoxin, thus leading to neuronal apoptosis. APEX1 AP-endodeoxyribonuclease is repressed by phosphorylation, resulting in accumulation of DNA damage and contributing to neuronal death. NOS3 phosphorylation down regulates NOS3-derived nitrite (NO) levels. SRC phosphorylation mediates its ubiquitin- dependent degradation and thus leads to cytoskeletal reorganization. May regulate endothelial cell migration and angiogenesis via the modulation of lamellipodia formation. Involved in dendritic spine morphogenesis by mediating the EFNA1- EPHA4 signaling. The complex p35/CDK5 participates in the regulation of the circadian clock by modulating the function of CLOCK protein: phosphorylates CLOCK at 'Thr-451' and 'Thr-461' and regulates the transcriptional activity of the CLOCK-ARNTL/BMAL1 heterodimer in association with altered stability and subcellular distribution. {ECO:0000269|PubMed:12393264, ECO:0000269|PubMed:12691662, ECO:0000269|PubMed:15992363, ECO:0000269|PubMed:17009320, ECO:0000269|PubMed:17121855, ECO:0000269|PubMed:17591690, ECO:0000269|PubMed:17611284, ECO:0000269|PubMed:17671990, ECO:0000269|PubMed:18042622, ECO:0000269|PubMed:19081376, ECO:0000269|PubMed:19693690, ECO:0000269|PubMed:20061803, ECO:0000269|PubMed:20213743, ECO:0000269|PubMed:20826806, ECO:0000269|PubMed:21209322, ECO:0000269|PubMed:21220307, ECO:0000269|PubMed:21442427, ECO:0000269|PubMed:21465480, ECO:0000269|PubMed:21499257, ECO:0000269|PubMed:24235147, ECO:0000269|PubMed:9822744}.;
- Disease
- DISEASE: Lissencephaly 7, with cerebellar hypoplasia (LIS7) [MIM:616342]: A form of lissencephaly, a disorder of cortical development characterized by agyria or pachygyria and disorganization of the clear neuronal lamination of normal six- layered cortex. LIS7 patients manifest lack of psychomotor development, facial dysmorphism, arthrogryposis, and early-onset intractable seizures resulting in death in infancy. {ECO:0000269|PubMed:25560765}. Note=The disease is caused by mutations affecting the gene represented in this entry.;
Recessive Scores
- pRec
- 0.566
Intolerance Scores
- RVIS EVS
- -0.03
- RVIS percentile EVS
- 51.04
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- N
- Essential (gene trap)
- N
- Indispensability pred.
- E
- Indispensability score
- 0.995
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Low | Medium |
| Primary Immunodeficiency | Medium | Low | Medium |
| Cancer | Medium | Medium | Medium |