Hax-1: a regulator of calcium signaling and apoptosis progression with multiple roles in human disease
Bibliographic record
Abstract
INTRODUCTION: Hax-1, the hematopoietic cell-specific protein-associated protein X-1, is an inhibitor of apoptosis, which has been implicated in severe congenital neutropenia (SCN), neurological disorders and cancer. Hax-1 over-expression, as found in numerous types of cancer, results in resistance to granzyme B and caspase-3 and stabilizes the X-linked inhibitor of apoptosis, whereas its absence or knockdown promotes apoptosis. Hax-1 is bound to the cytosolic faces of mitochondria and the endoplasmic reticulum (ER). Interestingly, numerous viral proteins, including the classical swine fever virus N-terminal protease (N(pro)) and human immunodeficiency virus Vpr, interact with Hax-1 and disrupt its normal localization pattern. Recent findings have demonstrated that the localization to the ER allows Hax-1 to modulate calcium signaling via interactions with polycystin-2 and sarco(endo)plasmic reticulum calcium transport ATPase 2 (SERCA2). AREAS COVERED: This review discusses how the interaction of Hax-1 with calcium-handling proteins could dominate over its other roles in apoptosis, since Hax-1 no longer blocks apoptosis on over-expression of SERCA2. EXPERT OPINION: To facilitate pharmacological interference with the apoptosis-regulating functions of this protein, a better understanding of the Hax-1 intracellular targeting and protein-protein interactions is needed. Such an improved understanding would allow the generation of small molecule inhibitors that interfere with apoptosis-modulating functions of Hax-1 as seen in SCN.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.007 | 0.003 |
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; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".