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Related Concept Videos

ATP Synthase: Mechanism01:48

ATP Synthase: Mechanism

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In animals, the mitochondrial F1F0 ATP synthase is the key protein that synthesizes ATP molecules through a complex catalytic mechanism. While the nuclear genome encodes the majority of ATP synthase subunits, the mitochondrial genome encodes some of the enzyme's most critical components. The formation of this multi-subunit enzyme is a complex multi-step process regulated at the level of transcription, translation, and assembly. Defects in one or more of these steps can result in decreased...
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Translocation of Proteins into the Mitochondria01:19

Translocation of Proteins into the Mitochondria

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Mitochondrial precursors are translocated to the internal subcompartments via independent mechanisms involving distinct protein machineries called translocases.
Sorting of outer membrane proteins:
Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...
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The Inner Mitochondrial Membrane01:28

The Inner Mitochondrial Membrane

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The inner mitochondrial membrane is the primary site of ATP synthesis. The inner membrane domain that forms a smooth layer adjacent to the outer membrane is called the inner boundary membrane. This domain contains membrane transporters that drive metabolites in and out of the mitochondria.  In contrast, the inner membrane network that invaginates into the matrix space is called the cristae membrane. This domain accounts for principle mitochondrial function as it accommodates the protein...
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The ADP/ATP Carrier Protein01:42

The ADP/ATP Carrier Protein

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ADP/ATP carrier or AAC protein is the most abundant carrier protein in the inner mitochondrial membrane. It transports large quantities of ADP and ATP, equivalent to the average human body weight, every day. Among other transporters, ACC protein is one of the best-studied members of the mitochondrial carrier protein family. The ADP/ATP carrier protein comprises two transmembrane helices connected to a loop and a single alpha-helix on the matrix side. It switches between two conformational...
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Mitochondrial Protein Sorting01:39

Mitochondrial Protein Sorting

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Mitochondria are double-membrane organelles of the eukaryotes involved in cellular metabolism, signaling, ATP synthesis, and programmed cell death.  Each of these processes requires specific proteins and enzymes that must be correctly sorted to the right mitochondrial subcompartment for the proper functioning of the organelle.
Most of these mitochondrial proteins are encoded by the nucleus and imported to the mitochondria as unfolded or loosely folded precursors. Mitochondrial precursors...
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Porin Insertion in the Outer Mitochondrial Membrane01:12

Porin Insertion in the Outer Mitochondrial Membrane

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Porins are beta-barrel proteins translocated to the mitochondrial outer membrane through the TOM complex into the intermembrane space. Porin precursors bind TIM chaperones within the intermembrane space and are guided to the Sorting and Assembly Machinery complex or SAM complex on the outer mitochondrial membrane.
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Related Experiment Video

Updated: Aug 3, 2025

Assessment of Open Probability of the Mitochondrial Permeability Transition Pore in the Setting of Coenzyme Q Excess
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Mitochondrial CPT1A: Insights into structure, function, and basis for drug development.

Kai Liang1

  • 1School of Life Science, Peking University, Beijing, China.

Frontiers in Pharmacology
|April 10, 2023
PubMed
Summary
This summary is machine-generated.

Carnitine Palmitoyl-Transferase1A (CPT1A) is vital for fatty acid metabolism and implicated in diseases. Inhibiting CPT1A offers a promising therapeutic strategy for metabolic disorders and cancers.

Keywords:
CPT1aFATTY ACID β-OXIDATIONcancerdrug developmentinhibitor

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Oncology

Background:

  • Carnitine Palmitoyl-Transferase1A (CPT1A) is the rate-limiting enzyme in fatty acid beta-oxidation.
  • CPT1A dysfunction is linked to metabolic disorders and various cancers.
  • CPT1A is essential for cancer cell survival, proliferation, and drug resistance.

Purpose of the Study:

  • To systematically review the functions of CPT1A in health and disease.
  • To explore CPT1A as a druggable target for therapeutic interventions.
  • To provide a foundation for developing CPT1A-targeting drugs.

Main Methods:

  • Literature review of CPT1A functions and disease associations.
  • Analysis of CPT1A's role in cancer lipid metabolism.
  • Discussion of prospective therapies targeting CPT1A.

Main Results:

  • CPT1A plays a critical role in lipid metabolism.
  • Inhibition of CPT1A can impede cancer progression and metastasis.
  • Targeted CPT1A inhibition presents a metabolic therapy strategy for cancer.

Conclusions:

  • Understanding CPT1A is crucial for developing effective treatments.
  • CPT1A inhibition offers a novel approach for cancer therapy.
  • Further research into CPT1A mechanisms can advance drug development.