Function
Locations
Classical EutH implementation found in enterobacterial eut loci.
A reusable bacterial pathway in which ethanolamine uptake supplies the adenosylcobalamin-dependent EutB/EutC ammonia-lyase, producing acetaldehyde and ammonium. Acetaldehyde is then oxidized either to acetyl-CoA by an acetylating EutE-like enzyme or to acetate by a non-acylating NAD-dependent aldehyde dehydrogenase. Transporter family and microcompartment encapsulation vary between organisms; shell assembly, cobalamin supply, regulation, and downstream assimilation are outside the core boundary.
Molecular functions occur only on leaf annotons. EutB and EutC are active units of one enzyme-complex annoton; individual gene reviews use contributes_to qualifiers. KT2440 exemplifies an APC-family transporter and has an adjacent non-acylating AldB/AcoD-like candidate, not classical EutH or acetylating EutE; its acetaldehyde specificity remains unverified. Microcompartment encapsulation is an optional implementation context and is not required by the pathway definition. RHEA:23288 and the RHEA:25294 master reaction were verified against Rhea. The GOA source PTN PTN002446609 was verified exactly from Q88QF2 GOA. Canonical local PAINT data instead place GO:0009350 at PTN002217404 in PTHR39330, seeded by P19636 and P19265; only that canonical node is used as an ancestral-node assertion.
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No MODULE:bacterial_ethanolamine_uptake_catabolism deep-research report alongside the module YAML.
✓ every leaf node grounds to a representative protein.
✓ every declared conforms_to bundle matches its template motif.
1 complete review(s) · 1 with deep research · 5 missing review · 2 reviewed but lacking deep research
| Gene | Review | Complete | Deep research |
|---|---|---|---|
| eutB Q88QF1 | ✓ | 8/10 | ✗ |
| eutC Q88QF2 | ✓ | 7/9 | ✓ |
| EutB (Escherichia coli K-12) P0AEJ6 | ✗ | — | — |
| EutC (Escherichia coli K-12) P19636 | ✗ | — | — |
| EutE (Salmonella Typhimurium LT2) P41793 | ✗ | — | — |
| EutH (Salmonella Typhimurium LT2) P41796 | ✗ | — | — |
| PP_0544 Q88QF0 | ✓ | ✓ | ✗ |
| ExaC (Pseudomonas aeruginosa) Q9ZAA1 | ✗ | — | — |
Classical EutH implementation found in enterobacterial eut loci.
Alternative 12-pass APC-family implementation represented by the IPR004757/TIGR00908 KT2440 candidate; direct transport kinetics remain needed.
The assembled EutB/EutC complex performs the adenosylcobalamin-dependent pathway-defining cleavage; neither subunit independently enables the activity.
Classical EutE route that conserves the acetaldehyde carbon as acetyl-CoA.
Alternative non-acylating route represented by biochemically characterized ExaC. Whether KT2440 AldB-I implements this route is unresolved.