CKB Gene

CKB Gene

Introduction

Ckb Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

<div class="infobox infobox-gene"> [@supsup2022]
<table> [@supsup2023]
<tr><th>Gene Symbol</th><td>CKB</td></tr> [@supsup2021a]
<tr><th>Full Name</th><td>Creatine Kinase Brain</td></tr> [@supsup2022a]
<tr><th>Chromosomal Location</th><td>15q15.1</td></tr>
<tr><th>NCBI Gene ID</th><td>1152</td></tr>
<tr><th>OMIM</th><td>123260</td></tr>
<tr><th>Ensembl ID</th><td>ENSG00000136053</td></tr>
<tr><th>UniProt ID</th><td>P12277</td></tr>
<tr><th>Associated Diseases</th><td>Alzheimer's Disease, Parkinson's Disease, Huntington's Disease, Stroke</td></tr>
</table>
</div>

Overview

CKB Gene

Introduction

Ckb Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

<div class="infobox infobox-gene"> [@supsup2022]
<table> [@supsup2023]
<tr><th>Gene Symbol</th><td>CKB</td></tr> [@supsup2021a]
<tr><th>Full Name</th><td>Creatine Kinase Brain</td></tr> [@supsup2022a]
<tr><th>Chromosomal Location</th><td>15q15.1</td></tr>
<tr><th>NCBI Gene ID</th><td>1152</td></tr>
<tr><th>OMIM</th><td>123260</td></tr>
<tr><th>Ensembl ID</th><td>ENSG00000136053</td></tr>
<tr><th>UniProt ID</th><td>P12277</td></tr>
<tr><th>Associated Diseases</th><td>Alzheimer's Disease, Parkinson's Disease, Huntington's Disease, Stroke</td></tr>
</table>
</div>

Overview

CKB (Creatine Kinase Brain) encodes brain-type creatine kinase (CK-BB), a key enzyme in the phosphocreatine (PCr) energy shuttle system. This enzyme is crucial for cellular energy homeostasis, particularly in tissues with high and fluctuating energy demands like the brain.

Function

Creatine kinase catalyzes the reversible transfer of a phosphate group from phosphocreatine to ADP:

Phosphocreatine + ADP ↔ Creatine + ATP

Key Functions

• Energy Buffering: Maintains ATP levels during periods of high demand or stress
• Energy Shuttle: PCr serves as a spatial energy shuttle from mitochondria to cytosol
• Neuroprotection: Supports neuronal survival under metabolic stress
• Synaptic Function: Provides energy for synaptic vesicle cycling and ion pump function
• Oxidative Stress Protection: Reduces [ROS](/entities/reactive-oxygen-species) production by maintaining mitochondrial function

Disease Associations

Alzheimer's Disease

• CKB activity is reduced in AD brain, particularly in [hippocampus](/brain-regions/hippocampus)
• Decreased PCr/Cr ratio observed in AD patients via MRS
• CKB reduction correlates with cognitive decline
• Energy metabolism deficits precede clinical symptoms
• Therapeutic potential of creatine supplementation explored

Parkinson's Disease

• CKB activity reduced in substantia nigra of PD patients
• Dopaminergic [neurons](/entities/neurons) have high energy demands
• Mitochondrial dysfunction in PD affects energy metabolism
• Creatine supplementation shows neuroprotective effects in models

Huntington's Disease

• Significant CKB reduction in HD brain
• PCr levels decreased in HD patients (MRS studies)
• Mutant [huntingtin](/proteins/huntingtin-protein) disrupts energy metabolism
• Creatine trials in HD patients ongoing

Stroke and Brain Injury

• CKB levels drop after ischemic injury
• Phosphocreatine depletion is an early event
• Creatine supplementation improves outcomes in stroke models
• Energy support strategies are neuroprotective

Expression Pattern

CKB is highly expressed in:

• Brain (neurons, especially in [cortex](/brain-regions/cortex), hippocampus, basal ganglia)
• Heart muscle
• Smooth muscle
• Various glandular tissues

• Pyramidal neurons (cortical, hippocampal)
• Striatal medium spiny neurons
• Cerebellar Purkinje cells

Therapeutic Implications

• Creatine Supplementation: Oral creatine increases PCr stores
• Cyclocreatine: Phosphocreatine analog with better brain penetration
• Energy Metabolism Boosters: Combined approaches targeting multiple pathways
• Diagnostic Use: CKB as a biomarker for neuronal injury

Research Directions

• Clinical trials of creatine in AD, PD, HD
• Developing better brain-penetrant creatine analogs
• CKB as biomarker for neurodegeneration
• Gene therapy to increase CKB expression

Animal Models

• CKB knockout mice show impaired energy metabolism
• Double knockout (brain + mitochondrial CK) shows severe phenotype
• Creatine supplementation improves outcomes in disease models

Background

The study of Ckb Gene has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.

Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.

External Links

• [NCBI Gene: CKB](https://www.ncbi.nlm.nih.gov/gene/1152)
• [UniProt: P12277](https://www.uniprot.org/uniprot/P12277)
• [Ensembl: ENSG00000136053](https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000136053)
• [GeneCards: CKB](https://www.genecards.org/cgi-bin/carddisp.pl?gene=CKB)

References

See Also

• [Gap Analysis & Research Strategy](/wiki/gaps-gap-analysis) — associated_with
• [Apoptosis Pathway in Neurodegeneration](/wiki/mechanisms-apoptosis) — inhibits
• [ARNT - Aryl Hydrocarbon Receptor Nuclear Translocator](/wiki/genes-arnt) — inhibits
• [Riluzole ALS Trials](/wiki/clinical-trials-riluzole-als) — associated_with
• [BCL2 (B-Cell Lymphoma 2)](/wiki/proteins-bcl2) — inhibits
• [BMAL1 (ARNTL) Gene](/wiki/genes-bmal1) — inhibits

Pathway Diagram

The following diagram shows the key molecular relationships involving CKB Gene discovered through SciDEX knowledge graph analysis: