Proteomics

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Phosphoproteome of Thylakoid membrane in leaf senescence

ABSTRACT: Here, we investigated the role of STN7 kinase of photosynthetic protein complexes in leaf senescence. Defects in STN7 accelerated leaf yellowing and decreased the efficiency of leaf photosynthetic complexes. To identify STN7 targets, we profiled global proteomes and phosphoproteomes of thylakoid membranes from wild type and STN7 mutant leaves during leaf senescence. Proteome data revealed senescence-associated alterations of protein complexes associated with photosynthesis, translation, lipid metabolism, and stress response during leaf senescence.

INSTRUMENT(S):

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

TISSUE(S): Leaf

SUBMITTER: jihwan park  

LAB HEAD: Deahee Hwang

PROVIDER: PXD033330 | Pride | 2025-12-08

REPOSITORIES: Pride

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AraPhospho_Set01_FN01_240min_C1_063017_MXFiltered_1.mgf Mgf
AraPhospho_Set01_FN01_240min_C1_063017_MXFiltered_1.mzid.gz Mzid
AraPhospho_Set01_FN01_240min_C1_063017_MXFiltered_1.raw Raw
AraPhospho_Set01_FN02_240min_C2_063017_MXFiltered.mgf Mgf
AraPhospho_Set01_FN02_240min_C2_063017_MXFiltered.mzid.gz Mzid
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Publications

Identification of STN7-associated leaf senescence networks in thylakoid membranes of Arabidopsis.

Lee Seongsin S   Park Jihwan J   Back Seunghoon S   Poudyal Roshan Sharma RS   Mun Dong-Gi DG   Bae Jingi J   Gwak Nayoung N   Lee Sang-Won SW   Hwang Daehee D   Kim Yumi Y  

iScience 20250503 6

Photosynthetic protein complexes in thylakoid membranes disassemble during leaf senescence, leading to a decline in photosynthetic efficiency. However, the mechanisms by which these protein complexes in chloroplast thylakoid membranes modulate leaf senescence are poorly understood. This study investigated the roles of <i>Arabidopsis thaliana</i> STN7 and STN8 kinases during leaf senescence using proteomic tools, characterizing STN7 and STN8 overexpressors and loss-of-function mutants. During lea  ...[more]

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