Review of Studies on the Last Enzymes in Bacteriochlorophyll (<i>Bchl</i>) and Chlorophyll (<i>Chl</i>) Biosynthesis
Bibliographic record
Abstract
This paper summarizes the information available online related to mechanisms of Chlorophyll and Bacteriochlorophyll biosynthesis, emphasizing four enzymes in its last steps. The biosynthesis of Chlorophyll (Chl)/Bacteriochlorophyll (Bchl) is essential for the occurrence of photosynthesis. Four enzymes catalyze parts of the last chemical reactions steps to biosynthesize Bchl/Chl; they are: The Light-Dependent Protochlorophyllide (Pchlide) Oxidoreductase (LPOR: EC 1.3.1.33), the Light-Independent Pchlide oxidoreductase (DPOR: EC 1.3.7.7), Chlide Reductase (COR: EC 1.3.99.35) and the Divinyl Reductase (DVR: EC 1.3.1.75). These enzymes catalyze the reductions reactions of tetrapyrrole’s rings in the Chlorophyll and Bacteriochlorophyll biosynthesis process. This review has the aim to organize, analyze and compare the most important discoveries related to these four enzymes discovered so far. The comparisons are made with the information from the bibliography used, and the sequence of these enzymes got from online database. Sequence alignment, phylogenetic and molecular evolutionary analysis of all the four enzymes was conducted to find their levels of similarities.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.004 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.004 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.003 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; both teacher heads agree on what is shown here.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".