FOXN1 is a sequence-specific transcriptional activator with characteristic skin and thymic epithelial programs. The review retains one core combining RNA polymerase II activation, keratinocyte differentiation and thymic epithelial morphogenesis. The source guide records public article links and selected assay locators; the source evidence preserves all original contexts, their genuine mapping and the reviewed decisions.
All 40 genuine source contexts were reviewed: eight ACCEPT, thirteen KEEP_AS_NON_CORE, nine TOO_GENERAL, five MODIFY and five UNDECIDED. Source fields, annotation order, original reference identifiers and partner isoforms remain unchanged. The five refinements comprise sequence-specific RNA polymerase II regulatory DNA binding, three RNA polymerase II transcription-factor binding contexts and TLE5 corepressor binding. No new annotation, supporting quotation or alternative product was added.
The direct human FOXN1 structure and biochemical assays in PMID:31914405(https://pmc.ncbi.nlm.nih.gov/articles/PMC7062188/) strengthen sequence-specific DNA binding while retaining the truncated preparation, mouse DNA probes and uncertain native oligomeric-state limits. Rodent transcriptional and developmental assays remain distinct from human clinical evidence and human host cells. The twelve exact HuRI interactions retain their assay stages and isoforms; only TSSK1B has an additional MAPPIT record. Their partner-class refinements do not imply endogenous regulatory complexes or cofactor activity.
Mouse marrow and vascular findings are retained with their niche and non-cell-autonomous limits. Five unresolved source-specific claims concern T-cell lineage commitment, defense response, T-cell homeostasis, lymphoid migration and positive selection. The positive marrow findings do not substitute for the missing lineage or selection endpoints. The biological questions in the review concern mechanism; source follow-up questions are listed separately in the evidence document.
The genuine fetch yielded 40 annotations and 18 review references after addition of the eight auxiliary publications. All 15 normal sources are present: three pre-existing files were reused unchanged and twelve absent files were acquired. The untouched pending seed, original GOA and UniProt snapshots were archived before authoring. All 40 raw extension fields are null; no biological extension was inferred from the legacy parser's gene-name column. The normal eight-row PAINT slice and the separately read 55-node phylogeny retain distinct source scopes.
Manual primary research was used; the known provider credential failure was not retried and no provider-generated report is claimed. Source-cache availability remains unchanged and is distinguished from separately accessible selected originals. Ordinary validation, computed status, history and rendering results will be appended after execution.
Local checks passed: ordinary gene validation reported eight generic-binding advisories, strict GOA matched all 40 contexts, and computed status remains DRAFT. History, private HTML rendering, local links and exact source/decision conservation passed. All 15 normal sources and prior lane records remain unchanged. The initial unsupported action spelling was corrected to TOO_GENERAL, and the grounded IBA refinement now includes structured source assessment. Scientific PR review and full merge-group CI remain pending.
This follow-up supersedes the initial action counts above: nine ACCEPT, sixteen KEEP_AS_NON_CORE, seven TOO_GENERAL, five MODIFY and three UNDECIDED. All 40 original annotations retain their order, source fields, reference identifiers and partner identities. Thymus development retains informative organ-level scope alongside core thymic epithelial morphogenesis; epidermis development is retained as a non-core context alongside core keratinocyte differentiation (PMID:8790387(https://pmc.ncbi.nlm.nih.gov/articles/PMC38485/), PMID:10767081(https://pubmed.ncbi.nlm.nih.gov/10767081/), PMID:21109991(https://pmc.ncbi.nlm.nih.gov/articles/PMC3060403/), PMID:31566583(https://www.jci.org/articles/view/127565)). The narrower core terms remain unchanged.
Selected original Results and Methods in PMID:27548434(https://pmc.ncbi.nlm.nih.gov/articles/PMC5033077/) provide independent thymic epithelial target and selection evidence. Dll4 regulation and the T/B-lineage shift support non-core commitment through the niche, without claiming a tracked irreversible choice. CD69/TCR selection endpoints and Psmb11/Cd83 target experiments support non-core regulation of positive selection. Target reconstitution is still needed to quantify mediation. The mouse models, TEC assays and unassigned reporter-vector species remain distinct from human FOXN1 binding experiments in PMID:31914405(https://pmc.ncbi.nlm.nih.gov/articles/PMC7062188/).
Defense response, T-cell homeostasis and lymphoid entry into the thymus remain unresolved after this broader reassessment. The positive marrow findings in PMID:24184560(https://pmc.ncbi.nlm.nih.gov/articles/PMC4081451/) do not measure homeostatic turnover, and target regulation or early-progenitor abundance does not isolate immigration. The distinct early-entry and vascular endpoints in PMID:23750244(https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0065196) remain explicit. Original-source access limits are preserved in the guide and reference assessments.
The twelve HuRI reasons retain their exact partner, isoform and functional scope; repeated shared assay caveats now appear once in the guide. The core description states the biological function directly. No new annotation or publication quotation was added. PMID:27548434 was fetched through the ordinary publication command after source qualification; all fifteen prior normal sources remain unchanged. There are now nineteen review references and sixteen normal sources. Follow-up validation and history results will be recorded after application.
Follow-up local checks passed: default validation reported the same eight generic-binding advisories, strict GOA matched all 40 annotations, and report-only status confirmed DRAFT. The new EDIT history, private HTML rendering, local links and exact source/decision conservation passed. All fifteen prior normal sources, the new auxiliary cache and the published history remain exact; the shared runtime and prior lane records are preserved. Renewed scientific review and CI are still required for the amended head.