VRN5 / VIL1 curation notes

Session 2026-10-05 (vernalization_flc_silencing module)

• Q9LHF5, At3g24440. The UniProt primary name is VIL1 (synonym VRN5); the folder is VRN5 as assigned by the module plan, and the review gene_symbol is VRN5 (TAIR name; a UniProt synonym), matching the folder.
• Falcon deep research failed.
• Identification: PMID:17174094; PMID:17114575.
• FLC binding dynamics: PMID:18854416
• Adaptor role: PMID:40858112 and "it is required to physically connect VIN3 with PRC2". Basis for the NEW GO:0030674 protein-macromolecule adaptor activity.
• Photoperiod (FLM) roles are kept as non-core: PMID:17114575

Decisions

• IBA histone H3 reader -> MARK_AS_OVER_ANNOTATED. The VRN5 PHD superdomain itself was not assayed, but the VEL PHD superdomain lacks the H3 pocket, and in VRN5 this module mediates PRC2 binding.
• IBA constitutive heterochromatin -> MODIFY to facultative heterochromatin formation.