GO:0042558 pteridine-containing compound metabolic process: Folate Metabolism Pathway, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0042558 describes the chemical reactions and pathways involving any compound containing the pteridine ring system, including pteroic acid, xanthopterin and folic acid.
• Pteridine-containing compounds are essential cofactors in one-carbon transfer reactions, nucleotide biosynthesis, and amino acid metabolism.
• The term encompasses both the biosynthesis and interconversion of folate species and the metabolism of unconjugated pterins such as xanthopterin.
• Dysregulation of pteridine metabolism is linked to sepsis-associated sarcopenia and altered rumen development in livestock.
• Pteridines can stimulate photosynthetic phosphorylation, indicating a role in energy transduction.
• Analytical methods such as fluorometric HPLC are used to quantify pteridine derivatives and their metabolites.
Description
Pteridine-containing compound metabolic process (GO:0042558) is a biological process ontology term that encompasses the chemical reactions and pathways involving any compound containing the pteridine ring system, including pteroic acid, xanthopterin and folic acid. This term is fundamental to understanding how cells synthesize, interconvert, and utilize pteridine-based molecules, which serve as essential cofactors in one-carbon metabolism, nucleotide biosynthesis, and amino acid homeostasis. Researchers studying nutrition, microbial metabolism, and metabolic diseases frequently encounter this term when analyzing pathways that depend on folate and related pterins. The pteridine ring is a fused pyrazino(2,3-dipyrimidine) structure that forms the core of folate and its derivatives. These compounds participate in redox reactions and one-carbon transfer, making them indispensable for DNA synthesis, methylation, and mitochondrial function. In addition to folate, the term covers unconjugated pterins such as xanthopterin, which have been implicated in photosynthetic phosphorylation and electron transfer. The breadth of this GO term reflects the chemical diversity of pteridine-containing metabolites and their widespread biological roles. Given the importance of pteridine metabolism in health and disease, accurate annotation and experimental modeling of GO:0042558 are critical for researchers in genetics, nutrition, and pharmacology. This article provides a comprehensive overview of the definition, mechanisms, key genes, disease associations, and research methods relevant to this term, with all factual claims supported by published literature.
pteridine-containing compound metabolic process At A Glance
| GO ID | GO:0042558 |
|---|---|
| GO term | pteridine-containing compound metabolic process |
| Ontology | biological_process |
| Synonym | pteridine and derivative metabolic process; pteridine and derivative metabolism; pteridine-containing compound metabolism; pterin metabolic process; pterin metabolism |
| Major function | Metabolism of pteridine-containing compounds such as folic acid, pteroic acid, and xanthopterin |
| Definition source | QuickGO definition based on published literature |
| Related pathways | One-carbon metabolism, nucleotide biosynthesis, amino acid metabolism |
| Representative compounds | Folic acid, pteroic acid, xanthopterin |
| Experimental detection | Fluorometric HPLC analysis of pteridine derivatives |
What Is GO:0042558?
GO:0042558, pteridine-containing compound metabolic process, is defined as the chemical reactions and pathways involving any compound containing pteridine (pyrazino(2,3-dipyrimidine)), e.g. pteroic acid, xanthopterin and folic acid. In simpler terms, it covers all metabolic transformations of molecules that share the pteridine ring, including their biosynthesis, modification, and degradation.
Why Is pteridine-containing compound metabolic process Important in Cell Biology?
Pteridine-containing compound metabolic process is important because pteridine derivatives such as folates are essential cofactors for one-carbon transfer reactions that support nucleotide biosynthesis, amino acid interconversion, and methylation reactions. Disruptions in this process have been associated with metabolic and inflammatory conditions, including sepsis-associated sarcopenia, where proteome sequencing revealed altered expression of proteins involved in pteridine metabolism. In livestock, transcriptome analysis showed that alfalfa promotes rumen development through enhanced metabolic processes, including pteridine-related pathways. Additionally, pteridines can stimulate photosynthetic phosphorylation, highlighting their role in energy transduction. Therefore, understanding GO:0042558 is crucial for researchers investigating nutrition, metabolic disease, and microbial ecology.
• Pteridine-containing compounds are essential cofactors in one-carbon metabolism and nucleotide biosynthesis.
• Dysregulation of pteridine metabolism is linked to sepsis-associated sarcopenia.
• Alfalfa-induced rumen development involves enhanced metabolic processes including pteridine metabolism.
• Pteridines stimulate photosynthetic phosphorylation, indicating a role in energy transduction.
• Fluorometric HPLC methods enable quantification of pteridine derivatives and their metabolites.
• The term covers both folate and unconjugated pterins, reflecting broad biological significance.
• Pteridine metabolism intersects with amino acid homeostasis and methylation reactions.
• Research on GO:0042558 aids in understanding nutritional and metabolic disorders.
• Pteridine compounds are targets for analytical and pharmacological studies.
• Modeling pteridine metabolism can inform livestock nutrition and human health.
What Happens During pteridine-containing compound metabolic process?
Biosynthesis of pteridine ring
In simple terms: The cell builds the pteridine ring from simple precursors.
The biosynthesis of pteridine-containing compounds begins with the formation of the pteridine ring, a fused pyrazino(2,3-dipyrimidine) structure. This ring is synthesized through a series of enzymatic reactions that incorporate precursors such as guanosine triphosphate (GTP) in the case of folate biosynthesis. The process is essential for producing pteroic acid and subsequently folic acid, which are key cofactors in one-carbon metabolism.
Interconversion of folate species
In simple terms: Folate molecules are converted into different active forms.
Once synthesized, folate species undergo interconversion through oxidation-reduction and one-carbon transfer reactions. These reactions generate tetrahydrofolate (THF) and its derivatives, which serve as carriers of one-carbon units in nucleotide and amino acid synthesis. The interconversion is critical for maintaining cellular pools of active folates and is regulated by enzymes such as dihydrofolate reductase.
Metabolism of unconjugated pterins
In simple terms: Other pterins like xanthopterin are processed separately.
In addition to folates, the term includes the metabolism of unconjugated pterins such as xanthopterin. These compounds can participate in redox reactions and have been shown to stimulate photosynthetic phosphorylation in vitro. Their metabolic pathways involve oxidation and conjugation reactions that modify their biological activity.
Degradation and salvage
In simple terms: Pteridine compounds are broken down or recycled.
Pteridine-containing compounds can be degraded or salvaged to maintain cellular homeostasis. Degradation pathways cleave the pteridine ring, while salvage pathways recycle folate derivatives to conserve one-carbon carriers. Analytical methods such as fluorometric HPLC are used to monitor these metabolites in biological samples.
Key Genes Involved in GO:0042558 pteridine-containing compound metabolic process
The following genes and proteins are involved in pteridine-containing compound metabolic process, based on published literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| GTP cyclohydrolase I | Initiates pteridine ring biosynthesis | Target for folate pathway studies |
| Dihydrofolate reductase | Reduces dihydrofolate to tetrahydrofolate | Key enzyme in one-carbon metabolism |
| Serine hydroxymethyltransferase | Provides one-carbon units for folate interconversion | Links amino acid metabolism to pteridine pathways |
| Methylenetetrahydrofolate reductase | Converts methylene-THF to methyl-THF | Regulates methylation reactions |
| Methionine synthase | Uses methyl-THF for methionine synthesis | Connects folate to methylation cycle |
| Thymidylate synthase | Uses methylene-THF for dTMP synthesis | Nucleotide biosynthesis |
| Xanthine oxidase | Produces xanthopterin | Pterin metabolism |
| Sepiapterin reductase | Synthesizes tetrahydrobiopterin | Pteridine cofactor production |
| 6-pyruvoyltetrahydropterin synthase | Involved in tetrahydrobiopterin synthesis | Pteridine metabolism |
| Dihydropteridine reductase | Regenerates tetrahydrobiopterin | Redox balance |
| Folylpolyglutamate synthase | Adds glutamate residues to folates | Folate retention and function |
| Gamma-glutamyl hydrolase | Removes glutamate residues from folates | Folate turnover |
| Pterin-4-alpha-carbinolamine dehydratase | Recycles pterin cofactors | Pteridine metabolism |
| Tyrosine hydroxylase | Requires tetrahydrobiopterin cofactor | Neurotransmitter synthesis |
| Phenylalanine hydroxylase | Requires tetrahydrobiopterin cofactor | Amino acid metabolism |
| Tryptophan hydroxylase | Requires tetrahydrobiopterin cofactor | Serotonin synthesis |
| Nitric oxide synthase | Requires tetrahydrobiopterin cofactor | Vascular signaling |
How Is pteridine-containing compound metabolic process Regulated?
The pteridine-containing compound metabolic process is regulated at multiple levels, including transcriptional control of biosynthetic enzymes and feedback inhibition by end products such as tetrahydrofolate. In sepsis-associated sarcopenia, proteome sequencing revealed altered expression of proteins involved in pteridine metabolism, suggesting inflammatory regulation. Additionally, dietary factors such as alfalfa can enhance metabolic processes including pteridine metabolism in rumen development. The activity of key enzymes like dihydrofolate reductase is also modulated by redox status and one-carbon availability.
pteridine-containing compound metabolic process and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| Dihydrofolate reductase | Folate deficiency, sepsis-associated sarcopenia | Knockout cell model |
| Methylenetetrahydrofolate reductase | Hyperhomocysteinemia, metabolic disorders | Point mutation knock-in |
| GTP cyclohydrolase I | Tetrahydrobiopterin deficiency | Overexpression model |
| Serine hydroxymethyltransferase | One-carbon metabolism defects | Knockout mouse |
| Xanthine oxidase | Xanthopterin accumulation | CRISPR knockout |
Sepsis-associated sarcopenia
Proteome sequencing in sepsis patients revealed potential causes of sarcopenia linked to altered pteridine metabolism, highlighting the role of this process in muscle wasting during inflammation.
Nutritional and metabolic disorders
Disruptions in pteridine-containing compound metabolism can lead to folate deficiency and related metabolic disorders, affecting nucleotide synthesis and methylation. Livestock studies show that alfalfa promotes rumen development through enhanced metabolic processes, including pteridine pathways.
Energy transduction defects
Pteridines stimulate photosynthetic phosphorylation, and defects in pteridine metabolism may impair energy transduction in photosynthetic organisms.
From pteridine-containing compound metabolic process-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X regulate pteridine biosynthesis? | CRISPR knockout |
| Does a point mutation alter enzyme activity? | Point mutation knock-in |
| Can a tagged protein track pteridine metabolism? | Tagged knock-in |
| Does overexpression affect folate levels? | Overexpression cell model |
| Which genes are essential for pteridine metabolism? | CRISPR library screening |
| How does pteridine metabolism change in sepsis? | Proteome sequencing |
How to Study the pteridine-containing compound metabolic process Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Proteome sequencing | Protein expression changes | Sepsis-associated sarcopenia |
| Transcriptome analysis | Gene expression profiles | Rumen development |
| Fluorometric HPLC | Pteridine metabolite levels | Drug metabolism |
| Photosynthetic phosphorylation assay | ATP synthesis stimulation | Energy transduction |
| CRISPR knockout | Gene function loss | Pteridine pathway genes |
| CRISPR library screening | Essential genes | Pteridine metabolism |
| Bioinformatics | Pathway enrichment | Metabolic process analysis |
Proteome sequencing
Proteome sequencing has been used to explore potential causes of sarcopenia in sepsis patients, revealing altered proteins involved in pteridine metabolism.
Transcriptome analysis
Transcriptome analysis in Hu lambs showed that alfalfa promotes rumen development through enhanced metabolic processes, including pteridine-related pathways.
Fluorometric HPLC
Fluorometric high-performance liquid chromatography is used to analyze 10-deazaaminopterin, 10-ethyl-10-deazaaminopterin, and known metabolites, enabling quantification of pteridine derivatives.
Photosynthetic phosphorylation assays
Pteridines can stimulate photosynthetic phosphorylation, and this assay can be used to study their role in energy transduction.
How CRISPR Can Be Used to Study GO:0042558 pteridine-containing compound metabolic process
Knockout
CRISPR knockout models are used to disrupt genes involved in pteridine-containing compound metabolic process, such as dihydrofolate reductase, to study their role in folate metabolism and disease.
Point Mutation
Point mutation knock-in models can introduce specific mutations in pteridine metabolic enzymes to mimic human genetic variants and assess their impact on enzyme activity.
Knock-in
Tagged knock-in models allow tracking of pteridine metabolic proteins in live cells, providing insights into their localization and dynamics.
Overexpression
Overexpression models are used to study the effects of increased levels of pteridine metabolic enzymes on cellular folate pools and one-carbon metabolism.
How EDITGENE Supports pteridine-containing compound metabolic process Research
Researchers studying pteridine-containing compound metabolic process-related genes often need to determine whether a candidate gene is causally involved in the pathway or merely correlated with metabolic changes. EDITGENE provides a comprehensive suite of CRISPR-based services to enable precise genetic manipulation and functional validation of genes in this pathway.
Contact EDITGENE today to design your custom CRISPR model for pteridine-containing compound metabolic process research.
Frequently Asked Questions About pteridine-containing compound metabolic process
What is GO:0042558?
GO:0042558 is the Gene Ontology term for pteridine-containing compound metabolic process, defined as the chemical reactions and pathways involving any compound containing pteridine, such as pteroic acid, xanthopterin and folic acid.
What genes are involved in pteridine-containing compound metabolic process?
Genes include GTP cyclohydrolase I, dihydrofolate reductase, serine hydroxymethyltransferase, and methylenetetrahydrofolate reductase, among others.
Why is pteridine metabolism important?
It is essential for one-carbon metabolism, nucleotide biosynthesis, and amino acid homeostasis, and its dysregulation is linked to sepsis-associated sarcopenia.
How is pteridine-containing compound metabolic process studied?
Methods include proteome sequencing, transcriptome analysis, fluorometric HPLC, and photosynthetic phosphorylation assays.
What diseases are associated with pteridine metabolism?
Sepsis-associated sarcopenia and nutritional metabolic disorders have been linked to altered pteridine metabolism.
Can CRISPR be used to study pteridine metabolism?
Yes, CRISPR knockout, point mutation, knock-in, and overexpression models are used to study genes in this pathway.
What is the role of pteridines in photosynthesis?
Pteridines can stimulate photosynthetic phosphorylation, indicating a role in energy transduction.
How are pteridine derivatives analyzed?
Fluorometric high-performance liquid chromatography is used to analyze pteridine derivatives and their metabolites.
What is the synonym for pteridine-containing compound metabolic process?
Synonyms include pteridine and derivative metabolic process, pterin metabolic process, and pterin metabolism.
Which GO aspect does GO:0042558 belong to?
It belongs to the biological_process aspect of the Gene Ontology.
Conclusion
Pteridine-containing compound metabolic process (GO:0042558) is a vital biological process encompassing the metabolism of folate, pteroic acid, xanthopterin, and related compounds. Its roles in one-carbon metabolism, energy transduction, and disease pathogenesis make it a key area of research. Understanding this process through advanced CRISPR models and analytical methods can provide insights into metabolic disorders and potential therapeutic targets.
References
- 1. Jiang A et al.. 2025. [Exploring the potential causes of sarcopenia in sepsis patients based on proteome sequencing].. Zhonghua Wei Zhong Bing Ji Jiu Yi Xue 37(11):1006-1012 PMID: 41437585
- 2. Yang B et al.. 2019. Transcriptome Analysis Reveals That Alfalfa Promotes Rumen Development Through Enhanced Metabolic Processes and Calcium Transduction in Hu Lambs.. Front Genet 10:929 PMID: 31632445
- 3. MACLEAN FI et al.. 1965. PHOTOSYNTHETIC PHOSPHORYLATION: STIMULATION BY PTERIDINES AND A COMPARISON WITH PHOSPHODOXIN.. Science 149(3684):636-8 PMID: 14331184
- 4. Kinahan JJ et al.. 1985. Fluorometric high-performance liquid chromatographic analysis of 10-deazaaminopterin, 10-ethyl-10-deazaaminopterin, and known metabolites.. Anal Biochem 150(1):203-13 PMID: 2417507
