Proteomics

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Protein interactions of transcriptional co-regulator LEUNIG_HOMOLOG (LUH) during early stages of Arabidopsis flower development.

ABSTRACT: To study the formation and dynamics of LUH protein-protein interactions at various stages of flower development, we conducted a series of immunoprecipitation followed by mass spectrometry (IP-MS) experiments using the LUH-GFP in floral induction system (FIS) plant line (pLUH:LUH-GFP pAP1:AP1-GR ap1 cal). We focused on four time points after the induction of flowering corresponding to: undifferentiated inflorescence meristem (0 days after induction, 0 DAI), meristem specification (2 DAI), organ specification (4 DAI), and organ differentiation (8 DAI).

INSTRUMENT(S):

ORGANISM(S): Arabidopsis Thaliana (mouse-ear Cress)

TISSUE(S): Flower

SUBMITTER: Cezary Smaczniak  

LAB HEAD: Kerstin Kaufmann

PROVIDER: PXD060520 | Pride | 2025-11-25

REPOSITORIES: Pride

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20210914_RoVe_13_FGS173_0d_R1.raw Raw
20210914_RoVe_14_FGS173_0d_R2.raw Raw
20210914_RoVe_15_FGS173_0d_R3.raw Raw
20210914_RoVe_19_FGS173_4d_R1.raw Raw
20210914_RoVe_20_FGS173_4d_R2.raw Raw
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Publications

Rewiring of LEUNIG_HOMOLOG interaction networks marks regulatory shifts from meristem to organ growth in Arabidopsis flowers.

Vega-León Rosario R   Muino Jose M JM   Zhu Tao T   Gluza Joanna A JA   Pimentel Maurizio M   Rehbein Konstantin K   Steiner Saoirse S   Rezzolla Emilia E   Golz John F JF   Chen Dijun D   Kaufmann Kerstin K   Smaczniak Cezary C  

The Plant journal : for cell and molecular biology 20251101 4

LEUNIG (LUG) and LEUNIG_HOMOLOG (LUH) are Groucho/Tup1-type transcriptional co-regulators in Arabidopsis thaliana that act redundantly across multiple developmental and environmental response pathways. Their specific contributions to flower development, however, have remained unclear due to embryonic lethality of double mutants. Here, we show that LUH associates with distinct sets of transcription factors and chromatin-associated proteins in a developmentally dynamic manner. Chromatin occupancy  ...[more]

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