Component
Bacteroides thetaiotaomicron BT1020, dual RG-II chain-D hydrolase
Bacteroides thetaiotaomicron BT1020, dual RG-II chain-D hydrolase. Species, exposure and limitations are retained in each linked claim.
1 recorded relationships. Experimental role, claim status and evidence remain attached to each record.
How nutrients influence it
Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.
Other things that act on it
Enzymes, hormones, genes, and other components with a recorded effect. These are not nutrients, so they do not count toward the arrows above. Each finding names the chapter that recorded it.
How nutrients reach it in more than one step
Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.
Tracing routes…
What it does
Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.
What it acts on
BT1020 combines an N-terminal Dha hydrolase with a C-terminal beta-L-arabinofuranosidase for chain-D processing.
Experimental context and source evidence
- evidence_span
- {"source_cache": "artifacts/pectin-research/28329766.fulltext.txt", "locator": "Primary full-text span; zero-based, end-exclusive Unicode character offsets", "file_sha256": "e0298d5bf6cef49e211cd0230c691566f2a68a0b7c6642040c50687ac8dcd55f", "start_char": 3702, "end_char": 4301, "text_sha256": "b0577db49fd5f5b6c8a42a003ad49148b31012228ed996430885de1d4fbd6fe0"}
- experimental_model
- Recombinant enzyme dissection and structures
- exposure
- Purified plant RG-II and defined enzymatic substrates
- limitations
- The linked corrigendum DOI 10.1038/nature23659 corrects attribution of glycan symbols to SNFG; it does not reverse these enzyme results. This is microbial biochemistry.
- nutrient_topic
- Pectin research collection; topical membership is not evidence of a direct dietary effect. · Pectin, structurally heterogeneous plant polysaccharides
- organism
- Bacteroides thetaiotaomicron
- plain_language
- Complex pectin requires coordinated, chemically distinct cuts.
- primary_references
- [pectin-p28329766] Complex pectin metabolism by gut bacteria reveals novel catalytic functions. (2017). https://pubmed.ncbi.nlm.nih.gov/28329766/ DOI: 10.1038/nature21725
- tissue_or_cell_type
- RG-II degradation system
Pectin: metabolism, signaling and nutrient connections (2026-09-17) · lines 321–332
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Recombinant enzyme dissection and structures · source_derived_draft · unverified_draft
### pectin-rgii-d BT1020 combines an N-terminal Dha hydrolase with a C-terminal beta-L-arabinofuranosidase for chain-D processing. Condition category: normal nutrient_topic: Pectin research collection; topical membership is not evidence of a direct dietary effect. plain_language: Complex pectin requires coordinated, chemically distinct cuts. organism: Bacteroides thetaiotaomicron tissue_or_cell_type: RG-II degradation system experimental_model: Recombinant enzyme dissection and structures limitations: The linked corrigendum DOI 10.1038/nature23659 corrects attribution of glycan symbols to SNFG; it does not reverse these enzyme results. This is microbial biochemistry. exposure: Purified plant RG-II and defined enzymatic substrates evidence_span: {"source_cache": "artifacts/pectin-research/28329766.fulltext.txt", "locator": "Primary full-text span; zero-based, end-exclusive Unicode character offsets", "file_sha256": "e0298d5bf6cef49e211cd0230c691566f2a68a0b7c6642040c50687ac8dcd55f", "start_char": 3702, "end_char": 4301, "text_sha256": "b0577db49fd5f5b6c8a42a003ad49148b31012228ed996430885de1d4fbd6fe0"} [pectin-p28329766] Complex pectin metabolism by gut bacteria reveals novel catalytic functions. (2017). https://pubmed.ncbi.nlm.nih.gov/28329766/ DOI: 10.1038/nature21725
Complete structured claim and evidence
The events it takes part in
A mechanism often involves more than two components. These are the full events, with every participant and its role.
Situations it appears in
Low-supply and faulty-machinery situations recorded in the chapters where this component plays a part.
In the sources
Preserved passages that mention this component, quoted exactly. Open one to read it in context.
Open hypotheses
Proposed ideas that involve this component. They are labeled as hypotheses and do not change any recorded statement.
This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.