The phytoplasma effector, phyllogen, structurally mimics host plant MADS transcription factors.

Galien A, Hutin S, Le Hir S, Paul M, Albanese P, Kieffer-Jaquinod S, Guillotin A, Iwabuchi N, Maejima K, Nanao MH, Tully MD, Hugouvieux V, Zubieta C
J Biol Chem 302(10):113449 (2026 Aug 13)

PMID: 42595115 doi: 10.1016/j.jbc.2026.113449

Submitted to SASBDB: 2026 Feb 13 Published in SASBDB: 2026 Sep 14

SASDY37 – MADS transcription factor SEPALLATA 3 (SEP3) Sample: Developmental protein SEPALLATA 3 dimer, 24 kDa Arabidopsis thaliana protein Buffer: 50 mM Tris, 300 mM NaCl, 1 mM TCEP, pH: 8 Experiment: SAXS data collected at B21, Diamond Light Source on 2020 Feb 23 RgGuinier 4.0 nm Dmax 15.4 nm VolumePorod 530 nm3

SASDY47 – Phytoplasmal effector causing phyllody 1 (Phyl1) Sample: Phytoplasmal effector causing phyllody 1 monomer, 11 kDa Onion yellows phytoplasma … protein Buffer: 50 mM Tris, 300 mM NaCl, 1 mM TCEP, pH: 8 Experiment: SAXS data collected at B21, Diamond Light Source on 2020 Feb 23 RgGuinier 2.2 nm Dmax 6.6 nm VolumePorod 51 nm3

SASDY57 – MADS transcription factor SEPALLATA 3 (SEP3) bound to Phytoplasmal effector causing phyllody 1 Sample: Developmental protein SEPALLATA 3 dimer, 24 kDa Arabidopsis thaliana protein Phytoplasmal effector causing phyllody 1 monomer, 11 kDa Onion yellows phytoplasma … protein Buffer: 50 mM Tris, 300 mM NaCl, 1 mM TCEP, pH: 8 Experiment: SAXS data collected at B21, Diamond Light Source on 2020 Feb 23 RgGuinier 3.8 nm Dmax 13.6 nm VolumePorod 200 nm3