Variation in structure and activity among elicitins from <i>Phytophthora sojae</i>
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Bibliographic record
Abstract
SUMMARY Transcripts encoding elicitin-like protein domains were identified from similarity searches of Phytophthora sojae expressed sequence tags and were characterized with regard to molecular structure and elicitor activity. The P. sojae elicitin family consists of at least nine genes with products similar to previously described elicitins (SOJA-2, SOJB, SOJ2, SOJ3, SOJ5, SOJ6 and SOJ7) or highly diverged from known sequences (SOJX and SOJY). The predicted structural features of seven (SOJA-2, SOJB, SOJ2, SOJ3, SOJ6, SOJX and SOJY) of the elicitin preproteins were compared. All of the predicted elicitins possess a leader signal sequence and a core elicitin domain. Five (SOJ2, SOJ3, SOJ6, SOJX and SOJY) of the characterized elicitins also contain a variable C-terminal region. In addition, SOJX and SOJY contain a C-terminal hydrophobic membrane-spanning domain. An analysis of expression patterns of the elicitin transcripts showed that SOJA-2, SOJB, SOJ2, SOJ3 and SOJ6 were expressed in axenically grown mycelia and during infection, but not in zoospores. In contrast, SOJX and SOJY were predominantly and specifically expressed in zoospores. Selected elicitin domains were also tested for the induction of the hypersensitive response (HR) in Nicotiana spp. All of the elicitin protein domains tested induced the HR, except for SOJX and SOJY. Overall, the results show that the P. sojae elicitin gene family is large and diverse, with varying patterns of expression and HR-inducing activity.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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 it