hemL assessment notes

Identity and core reaction

Q88DP0 (PP_4784) is a HemL-family glutamate-1-semialdehyde 2,1-aminomutase
assigned EC 5.4.3.8. UniProt supports the PLP-dependent conversion of
glutamate-1-semialdehyde to 5-aminolevulinate and a cytoplasmic homodimer
[file:PSEPK/hemL/hemL-uniprot.txt "RecName: Full=Glutamate-1-semialdehyde 2,1-aminomutase"]
[file:PSEPK/hemL/hemL-uniprot.txt "SUBCELLULAR LOCATION: Cytoplasm"].

The abstract of PMID:7883699 directly lists Pseudomonas putida among species
shown to use the tRNA-dependent HemA/HemL route to ALA
PMID:7883699.
This is species-level pathway evidence, not purified KT2440 Q88DP0 enzymology.

OpenScientist assessment

The OpenScientist report correctly identifies Q88DP0/PP_4784, the HemL reaction,
and the P. putida C5 route. It explicitly notes that target-specific enzymology,
structure, essentiality, regulation, and channeling evidence were not found.
Nevertheless, it presents an unsaved 63.4% alignment, exact target-residue
mapping, and ortholog-derived structure and essentiality conclusions as if they
were established for KT2440. Those details are not reproducible from the report
artifacts and were not used as target evidence.

Curation decisions

GO:0042286 captures the core reaction and GO:0033014 captures direct
tetrapyrrole precursor synthesis. PLP binding remains valid non-core cofactor
information, and cytoplasm is retained from the UniProt assignment. No
target-specific essentiality, HemA-HemL complex, or active-site-residue claim
was added.