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9LH4

Crystal structure of the cyclophilin 37 from Arabidopsis thaliana

Summary for 9LH4
Entry DOI10.2210/pdb9lh4/pdb
DescriptorPeptidyl-prolyl cis-trans isomerase CYP37, chloroplastic (2 entities in total)
Functional Keywordsarabidopsis thaliana, cyp37, plant protein
Biological sourceArabidopsis thaliana (thale cress)
Total number of polymer chains1
Total formula weight41437.73
Authors
Dong, S.,Qin, X. (deposition date: 2025-01-11, release date: 2025-12-24)
Primary citationHan, X.,Jiang, J.,Lu, Z.,Bai, J.,Qin, X.,Dong, S.
Crystal structure of cyclophilin 37 from Arabidopsis thaliana.
Acta Crystallogr.,Sect.F, 81:171-176, 2025
Cited by
PubMed Abstract: Photosynthesis is the largest-scale energy and material conversion process on Earth. The cytchrome (Cyt) bf complex plays a crucial role in photosynthesis. Under high-light conditions, cyclophilin 37 (CYP37) in Arabidopsis thaliana (AtCYP37) can interact with the PetA subunit of Cyt bf, thereby helping plants initiate photoprotection. Here, we purified, crystallized and determined a 1.95 Å resolution structure of AtCYP37. Overall, AtCYP37 consists of an N-terminal domain dominated by α-helices and a C-terminal domain mainly composed of β-strands and random coils. The structure shows significant similarity to those of Anabaena sp. CYPA and A. thaliana CYP38. Understanding the structure of AtCYP37 is significant as it may help to decipher how plants regulate photosynthesis and protect against high light damage, contributing to a broader understanding of plant photobiology and potentially guiding future research in improving plant stress tolerance.
PubMed: 40091855
DOI: 10.1107/S2053230X25001979
PDB entries with the same primary citation
Experimental method
X-RAY DIFFRACTION (1.95 Å)
Structure validation

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