GA3OX1 (GA4, AtGA3ox1; At1g15550; UniProt Q39103) - curation notes

• Accession Q39103 = G3OX1_ARATH verified.
• Falcon deep research attempted and failed (exit code 1).

Function

• GA9 -> GA4 (RHEA:68996) and GA20 -> GA1 (RHEA:10104); GA9 preferred PMID:9625708.
• ga4 semidwarf lacks 3beta-hydroxy GAs PMID:2236013.
• With GA3ox2 supplies bioactive GA in vegetative growth PMID:16460513.

Regulation (non-core)

• GA feedback via DELLA and AGF1 [PMID:17277098; PMID:17933900; PMID:9701576].
• Red light induction in seeds PMID:9836749; PIL5 repression PMID:17449805.

Curation decisions

• 7 IntAct Y2H protein-binding rows (PMID:32612234) REMOVED as uninformative (interaction not disputed).
• IEP rows from PMID:15927942 and PMID:17010113: abstracts do not mention GA3ox1, but response is independently established; kept as non-core rather than removed (full text not seen).