Protein localization in the human eye and genetic screen of opticin
Bibliographic record
Abstract
The opticin (OPTC) gene encodes a protein that is a member of the small leucine-rich repeat protein (SLRP) family. OPTC is located on chromosome 1q31-q32 within an age-related macular degeneration (AMD) susceptibility locus. We have developed an affinity-purified N-terminal anti-opticin antibody and used it to examine opticin expression in human eye tissues. The antibody was also used for opticin protein localization in human eye sections. Immunoblots of human eye tissues detected a predominant band of approximately 62 kDa in size in iris, trabecular meshwork/ciliary body, retina, vitreous, and optic nerve. Immunohistochemical experiments revealed that opticin is specifically localized in human cornea, iris, ciliary body, vitreous, choroid and retina. Due to opticin's protein profile in the eye, we have also screened OPTC for mutations in individuals with primary open-angle glaucoma (POAG), normal-tension glaucoma (NTG) or AMD. We identified four sequence variations, all of which were observed in normal controls except for the Arg229Cys change. Three amino acid substitutions (Ile182Thr, Arg229Cys and Arg325Trp) were in residues conserved in dog, mouse, pig and human. The Arg229Cys alteration was present in a homozygous state in one individual with neovascular AMD. Examination of the other AMD afflicted family members showed that the OPTC Arg229Cys variant did not segregate with the disorder within the family. The protein localization pattern of opticin and our preliminary screen of AMD patients suggest that a larger AMD patient screen may be warranted.
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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 | 0.000 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".