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One-step Metabolomics: Carbohydrates, Organic and Amino Acids Quantified in a Single Procedure
Published on: June 25, 2010
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A Missing Link to Vitamin B12 Metabolism.
Michael A Reid1, Jihye Paik2, Jason W Locasale1
1Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC 27710, USA.
Cell
|November 4, 2017
Summary
Nearly 3% of people with CLYBL gene variants have lower vitamin B12 levels. This study reveals CLYBL
Area of Science:
- Biochemistry
- Human Genetics
- Metabolomics
Background:
- CLYBL gene variants affect 3% of the human population.
- Individuals with these variants show reduced vitamin B12 levels.
- The metabolic function of CLYBL remains largely unknown.
Purpose of the Study:
- To elucidate the metabolic role of the CLYBL gene.
- To investigate the link between CLYBL, vitamin B12 metabolism, and itaconate production.
- To understand the physiological consequences of CLYBL loss-of-function.
Main Methods:
- Genetic analysis of individuals with CLYBL variants.
- Metabolomic profiling to identify downstream effects.
- Biochemical assays to study CLYBL enzyme activity.
Main Results:
- CLYBL is identified as a key enzyme in a metabolic pathway.
- Loss-of-function variants in CLYBL impair vitamin B12 metabolism.
- CLYBL activity influences the levels of the immunomodulatory metabolite itaconate.
Conclusions:
- CLYBL plays a critical role in vitamin B12 homeostasis.
- The study establishes a novel link between CLYBL, vitamin B12, and itaconate.
- Understanding CLYBL's function has implications for human health and metabolic disorders.
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