3axk

Structure of rice Rubisco in complex with NADP(H)

Method: X-RAY DIFFRACTION

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1. Protein Identity and Related Structures Protein Identity & Related Structures

Ribulose bisphosphate carboxylase large chain

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 16	Ribulose bisphosphate carboxylase small chain, chloroplastic × 8 （Q0INY7） GLYCEROL × 16 MAGNESIUM ION × 8 NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 8 water × 16	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RBL_ORYSJ
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–477； UniProt 1–477 Author chain B； PDBConstruct 1–477； UniProt 1–477

Ribulose bisphosphate carboxylase small chain, chloroplastic

OrganismNot specified

UniProt Q0INY7

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 16	Ribulose bisphosphate carboxylase large chain × 8 （P0C512） GLYCEROL × 16 MAGNESIUM ION × 8 NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 8 water × 16	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RBS1_ORYSJ
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain S； PDBConstruct 2–129； UniProt 48–175 Author chain T； PDBConstruct 2–129； UniProt 48–175

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	3axk
Deposition date deposition_date	2011-04-11
Structure title title	Structure of rice Rubisco in complex with NADP(H)
Keywords keywords	alpha/beta barrel, photosynthetic carbon reduction, Lyase; LYASE
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

3axk__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

3axk__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3axk__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	46.18 Å
Rg (electron density)	45.62 Å
Total Rg	45.99 Å
Atom count	35468
Residues	4404
Excluded volume	629340 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3axk__assembly_1__model_1`	hexadecameric （16）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (6)

Entity 1 Entity 1 polymer

Description description	Ribulose bisphosphate carboxylase large chain
Molecular weight formula_weight	52993.0 kDa
EC 编号 ec_number	4.1.1.39
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	9992

MSPQTETKASVGFKAGVKDYKLTYYTPEYETKDTDILAAFRVTPQPGVPPEEAGAAVAAESSTGTWTTVWTDGLTSLDRYKGRCYHIEPVVGEDNQYIAYVAYPLDLFEEGSVTNMFTSIVGNVFGFKALRALRLEDLRIPPTYSKTFQGPPHGIQVERDKLNKYGRPLLGCTIKPKLGLSAKNYGRACYECLRGGLDFTKDDENVNSQPFMRWRDRFVFCAEAIYKSQAETGEIKGHYLNATAGTCEEMIKRAVFARELGVPIVMHDYLTGGFTANTSLAHYCRDNGLLLHIHRAMHAVIDRQKNHGMHFRVLAKALRMSGGDHIHAGTVVGKLEGEREMTLGFVDLLRDDFIEKDRARGIFFTQDWVSMPGVIPVASGGIHVWHMPALTEIFGDDSVLQFGGGTLGHPWGNAPGAAANRVALEACVQARNEGRDLAREGNEIIRSACKWSPELAAACEIWKAIKFEFEPVDKLDS

Entity 2 Entity 2 polymer

Description description	Ribulose bisphosphate carboxylase small chain, chloroplastic
Molecular weight formula_weight	14969.3 kDa
EC 编号 ec_number	4.1.1.39
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	S,T

XMQVWPIEGIKKFETLSYLPPLTVEDLLKQIEYLLRSKWVPCLEFSKVGFVYRENHRSPGYYDGRYWTMWKLPMFGCTDATQVLKELEEAKKAYPDAFVRIIGFDNVRQVQCISFIAYKPPGCEESGGN

Entity 3 Entity 3 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 4 Entity 4 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 5 Entity 5 non-polymer

Description description	NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
Molecular weight formula_weight	745.4 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	1125

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6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

Domain ID domain_id	d3axka1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.9 — RuBisCO, large subunit, small (N-terminal) domain
Family Family family	d.58.9.1 — Ribulose 1,5-bisphosphate carboxylase-oxygenase

Domain ID domain_id	d3axka2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamily	c.1.14 — RuBisCo, C-terminal domain
Family Family family	c.1.14.1 — RuBisCo, large subunit, C-terminal domain

Domain ID domain_id	d3axkb1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.9 — RuBisCO, large subunit, small (N-terminal) domain
Family Family family	d.58.9.1 — Ribulose 1,5-bisphosphate carboxylase-oxygenase

Domain ID domain_id	d3axkb2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamily	c.1.14 — RuBisCo, C-terminal domain
Family Family family	c.1.14.1 — RuBisCo, large subunit, C-terminal domain

Domain ID domain_id	d3axks_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.73 — RuBisCO, small subunit
Superfamily Superfamily superfamily	d.73.1 — RuBisCO, small subunit
Family Family family	d.73.1.1 — RuBisCO, small subunit

Domain ID domain_id	d3axkt_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.73 — RuBisCO, small subunit
Superfamily Superfamily superfamily	d.73.1 — RuBisCO, small subunit
Family Family family	d.73.1.1 — RuBisCO, small subunit

CATH v4.4 (6 domains)

Domain ID domain_id	3axkA01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	150 — RuBisCO large subunit, N-terminal domain

Domain ID domain_id	3axkA02
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	110 — Ribulose bisphosphate carboxylase, large subunit, C-terminal domain

Domain ID domain_id	3axkB01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	150 — RuBisCO large subunit, N-terminal domain

Domain ID domain_id	3axkB02
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	110 — Ribulose bisphosphate carboxylase, large subunit, C-terminal domain

Domain ID domain_id	3axkS00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	190 — Ribulose 1,5 Bisphosphate Carboxylase/Oxygenase
Homologous superfamily homologous superfamily	10 — Ribulose bisphosphate carboxylase, small subunit

Domain ID domain_id	3axkT00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	190 — Ribulose 1,5 Bisphosphate Carboxylase/Oxygenase
Homologous superfamily homologous superfamily	10 — Ribulose bisphosphate carboxylase, small subunit

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Unit-cell length a length_a	110.246 Å
Unit-cell length b length_b	110.246 Å
Unit-cell length c length_c	199.768 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	16

Space group space_group	I 4
Space-group number int_tables_number	79
Crystal system crystal_system	—

Resolution resolution	1.900 Å
Low-resolution limit resolution_low	39.630 Å
R factor r_factor	0.1690
R_work r_work	0.1690
R_free r_free	0.1890

Structure of rice Rubisco in complex with NADP(H)

1. Protein Identity and Related Structures Protein Identity & Related Structures

Ribulose bisphosphate carboxylase large chain

State in the Current Structure

Other States of the Same Protein in the Database

Ribulose bisphosphate carboxylase small chain, chloroplastic

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

3axk__assembly_1__model_1

3axk__assembly_1__model_1 | I(q)

3axk__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

CATH v4.4 (6 domains)

7. Citations (1)

Structure of rice Rubisco in complex with NADP(H)

1. Protein Identity and Related Structures Protein Identity & Related Structures

Ribulose bisphosphate carboxylase large chain

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Ribulose bisphosphate carboxylase small chain, chloroplastic

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

3axk__assembly_1__model_1

3axk__assembly_1__model_1 | I(q)

3axk__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

CATH v4.4 (6 domains)

7. Citations (1)