# AAAS review notes

- AAAS encodes ALADIN, a WD-repeat nucleoporin mutated in triple-A syndrome. The original disease-gene reports describe ALADIN as a WD-repeat regulatory protein and link expression to neuroendocrine, gastrointestinal, and cerebral structures affected in disease [PMID:11062474 "The predicted product of AAAS, ALADIN (for alacrima-achalasia-adrenal insufficiency neurologic disorder), belongs to the WD-repeat family of regulatory proteins" ; PMID:11159947 "RNA blotting experiments revealed marked expression in neuroendocrine and gastrointestinal structures"].
- The core GO context is nuclear pore/nuclear envelope and regulation/support of nucleocytoplasmic transport. Disease-associated ALADIN variants fail to target NPCs, but patient cells did not show gross nuclear-envelope or NPC morphology defects, supporting a functional transport/regulatory interpretation rather than an NPC-structure-loss annotation [PMID:12730363 "A variety of disease-associated missense, nonsense, and frameshift mutations failed to localize to NPCs" ; PMID:12730363 "defects in NPC function, rather than structure, give rise to triple A syndrome"].
- NDC1 anchoring is a strong ALADIN-specific nuclear-envelope localization source: NDC1 depletion mislocalizes ALADIN, ALADIN depletion affects NDC1 at NPCs, and FRET supports direct association [PMID:19782045 "We identified NDC1 but not GP210 and POM121 as the main anchor of ALADIN within the NPC"].
- The AURKA/spindle paper supports a second well-evidenced AAAS function in mitosis. I kept mitotic spindle/spindle pole and mitotic spindle assembly, while treating microtubule bundle formation as non-core because it is a less direct description of the phenotype than spindle assembly and Aurora A spatial regulation [PMID:26246606 "Without ALADIN, Aurora A spreads from centrosomes onto spindle microtubules" ; PMID:26246606 "slows spindle assembly and chromosome alignment"].
- The PGRMC2 interaction is documented but not retained as GO:0005515 protein binding. It is useful biological context for adrenal/steroidogenesis hypotheses, but the generic binding term does not describe AAAS molecular function [PMID:27754849 "co-IP analyses showed that PGRMC2 precipitated with ALADIN"].
- The Proteostasis PN projection lists AAAS under Nuclear proteostasis | Protein transport | Nuclear pore complex and proposes GO:0015031 protein transport as new to GOA. I did not add this as a NEW annotation because existing GOA already has the more informative GO:0006913 nucleocytoplasmic transport and GO:0046822 regulation of nucleocytoplasmic transport, and the PN candidate is a broad class-level projection rather than gene-level evidence for generic protein transport [file:projects/PROTEOSTASIS/reports/pn_projection/pn_projected_candidate_additions.tsv "AAAS		GO:0015031	protein transport"].
- Falcon deep research was run for AAAS and produced `AAAS-deep-research-falcon.md` plus an artifact table. The wrapper returned nonzero after reporting a Falcon timeout and failed fallback, but the Falcon report itself contains usable synthesis consistent with the primary-literature review: ALADIN is an NPC/nuclear-envelope scaffold with NDC1-dependent targeting and selective transport/regulatory effects rather than enzymatic activity [file:human/AAAS/AAAS-deep-research-falcon.md "Best-supported current interpretation: ALADIN is a **scaffold/selective transport regulator at the NPC**, not an enzyme or transporter with a defined small-molecule substrate."].