9Q0R | pdb_00009q0r

Hybrid Rubisco containing Arabidopsis thaliana large subunit and Sorghum bicolor small subunit

PDB DOI: https://doi.org/10.2210/pdb9Q0R/pdb
EM Map EMD-72103: EMDB EMDataResource

Classification: PHOTOSYNTHESIS
Organism(s): Arabidopsis thaliana, Sorghum bicolor
Expression System: Arabidopsis thaliana
Mutation(s): No

Deposited: 2025-08-13 Released: 2026-08-26
Deposition Author(s): Azinas, S., Ceminsky, M., Gunn, L.H.
Funding Organization(s): Carl Trygger Foundation, Department of Energy (DOE, United States)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 1.84 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

Starting Model: experimental
View more details

wwPDB Validation 3D Report Full Report

This is version 1.0 of the entry. See complete history.

Literature

Heterologous small subunits complement growth and modify Rubisco catalysis in Arabidopsis

Mao, Y., Azinas, S., Ceminsky, M., Orr, D., Gunn, L.H., McCormick, A.J.

To be published.

Macromolecule Content

Total Structure Weight: 542.96 kDa
Atom Count: 40,322
Modeled Residue Count: 4,720
Deposited Residue Count: 4,816
Unique protein chains: 2

Macromolecules

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ribulose bisphosphate carboxylase large chain	A B [auth C] C [auth D] D [auth B] E A, B [auth C], C [auth D], D [auth B], E, F [auth G], G [auth H], H [auth F]	479	Arabidopsis thaliana	Mutation(s): 0 Gene Names: rbcL, AtCg00490 EC: 4.1.1.39
UniProt
Find proteins for O03042 (Arabidopsis thaliana) Explore O03042 Go to UniProtKB: O03042
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	O03042
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

| 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Ribulose bisphosphate carboxylase small subunit, chloroplastic	I [auth M] J [auth K] K [auth O] L [auth P] M [auth N] I [auth M], J [auth K], K [auth O], L [auth P], M [auth N], N [auth I], O [auth J], P [auth L]	123	Sorghum bicolor	Mutation(s): 0 Gene Names: RBCS, SORBI_3005G042000
UniProt
Find proteins for C5Y519 (Sorghum bicolor) Explore C5Y519 Go to UniProtKB: C5Y519
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	C5Y519
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
CAP (Subject of Investigation/LOI) Query on CAP Download:Ideal Coordinates CCD File SDF format, chain Y [auth E] SDF format, chain W [auth B] SDF format, chain U [auth D] SDF format, chain S [auth C] SDF format, chain Q [auth A] SDF format, chain EA [auth F] SDF format, chain CA [auth H] SDF format, chain AA [auth G] MOL2 format, chain Y [auth E] MOL2 format, chain W [auth B] MOL2 format, chain U [auth D] MOL2 format, chain S [auth C] MOL2 format, chain Q [auth A] MOL2 format, chain EA [auth F] MOL2 format, chain CA [auth H] MOL2 format, chain AA [auth G] mmCIF format, chain Y [auth E] mmCIF format, chain W [auth B] mmCIF format, chain U [auth D] mmCIF format, chain S [auth C] mmCIF format, chain Q [auth A] mmCIF format, chain EA [auth F] mmCIF format, chain CA [auth H] mmCIF format, chain AA [auth G]	AA [auth G] CA [auth H] EA [auth F] Q [auth A] S [auth C] AA [auth G], CA [auth H], EA [auth F], Q [auth A], S [auth C], U [auth D], W [auth B], Y [auth E]	2-CARBOXYARABINITOL-1,5-DIPHOSPHATE C₆ H₁₄ O₁₃ P₂ ITHCSGCUQDMYAI-ZMIZWQJLSA-N		Interactions Focus chain AA [auth G] Focus chain CA [auth H] Focus chain EA [auth F] Focus chain Q [auth A] Focus chain S [auth C] Focus chain U [auth D] Focus chain W [auth B] Focus chain Y [auth E] Interactions & Density Focus chain AA [auth G] Focus chain CA [auth H] Focus chain EA [auth F] Focus chain Q [auth A] Focus chain S [auth C] Focus chain U [auth D] Focus chain W [auth B] Focus chain Y [auth E]
MG (Subject of Investigation/LOI) Query on MG Download:Ideal Coordinates CCD File SDF format, chain Z [auth E] SDF format, chain X [auth B] SDF format, chain V [auth D] SDF format, chain T [auth C] SDF format, chain R [auth A] SDF format, chain FA [auth F] SDF format, chain DA [auth H] SDF format, chain BA [auth G] MOL2 format, chain Z [auth E] MOL2 format, chain X [auth B] MOL2 format, chain V [auth D] MOL2 format, chain T [auth C] MOL2 format, chain R [auth A] MOL2 format, chain FA [auth F] MOL2 format, chain DA [auth H] MOL2 format, chain BA [auth G] mmCIF format, chain Z [auth E] mmCIF format, chain X [auth B] mmCIF format, chain V [auth D] mmCIF format, chain T [auth C] mmCIF format, chain R [auth A] mmCIF format, chain FA [auth F] mmCIF format, chain DA [auth H] mmCIF format, chain BA [auth G]	BA [auth G] DA [auth H] FA [auth F] R [auth A] T [auth C] BA [auth G], DA [auth H], FA [auth F], R [auth A], T [auth C], V [auth D], X [auth B], Z [auth E]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain BA [auth G] Focus chain DA [auth H] Focus chain FA [auth F] Focus chain R [auth A] Focus chain T [auth C] Focus chain V [auth D] Focus chain X [auth B] Focus chain Z [auth E] Interactions & Density Focus chain BA [auth G] Focus chain DA [auth H] Focus chain FA [auth F] Focus chain R [auth A] Focus chain T [auth C] Focus chain V [auth D] Focus chain X [auth B] Focus chain Z [auth E]

Modified Residues 1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
KCX Query on KCX	A B [auth C] C [auth D] D [auth B] E A, B [auth C], C [auth D], D [auth B], E, F [auth G], G [auth H], H [auth F]	L-PEPTIDE LINKING	C₇ H₁₄ N₂ O₄		LYS