4rub

A CRYSTAL FORM OF RIBULOSE-1,5-BISPHOSPHATE CARBOXYLASE(SLASH)OXYGENASE FROM NICOTIANA TABACUM IN THE ACTIVATED STATE

Method: X-RAY DIFFRACTION

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

RIBULOSE 1,5-BISPHOSPHATE CARBOXYLASE/OXYGENASE (FORM IV)

Nicotiana tabacum

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 16	RIBULOSE 1,5-BISPHOSPHATE CARBOXYLASE/OXYGENASE (FORM IV) × 8 （P69249） MAGNESIUM ION × 8 2-CARBOXYARABINITOL-1,5-DIPHOSPHATE × 8 FORMIC ACID × 8	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RBL_TOBAC
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 Author chain C； PDBConstruct 1–477； UniProt 1–477 Author chain D； PDBConstruct 1–477； UniProt 1–477

RIBULOSE 1,5-BISPHOSPHATE CARBOXYLASE/OXYGENASE (FORM IV)

Nicotiana tabacum

UniProt P69249

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 16	RIBULOSE 1,5-BISPHOSPHATE CARBOXYLASE/OXYGENASE (FORM IV) × 8 （P00876） MAGNESIUM ION × 8 2-CARBOXYARABINITOL-1,5-DIPHOSPHATE × 8 FORMIC ACID × 8	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RBS_TOBAC
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain S； PDBConstruct 1–123； UniProt 58–180 Author chain T； PDBConstruct 1–123； UniProt 58–180 Author chain U； PDBConstruct 1–123； UniProt 58–180 Author chain V； PDBConstruct 1–123； UniProt 58–180

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	4rub
Deposition date deposition_date	1990-05-25
Structure title title	A CRYSTAL FORM OF RIBULOSE-1,5-BISPHOSPHATE CARBOXYLASE(SLASH)OXYGENASE FROM NICOTIANA TABACUM IN THE ACTIVATED STATE
Keywords keywords	LYASE(CARBON-CARBON); LYASE(CARBON-CARBON)
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.

4rub__assembly_1__model_1

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

Download this curve (.dat)

4rub__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4rub__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	46.93 Å
Rg (electron density)	46.26 Å
Total Rg	46.62 Å
Atom count	37416
Residues	4704
Excluded volume	664260 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4rub__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 (5)

Entity 1 Entity 1 polymer

Description description	RIBULOSE 1,5-BISPHOSPHATE CARBOXYLASE/OXYGENASE (FORM IV)
Molecular weight formula_weight	52967.1 kDa
EC 编号 ec_number	4.1.1.39
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	18708

MSPQTETKASVGFKAGVKEYKLTYYTPEYQTKDTDILAAFRVTPQPGVPPEEAGAAVAAESSTGTWTTVWTDGLTSLDRYKGRCYRIERVVGEKDQYIAYVAYPLDLFEEGSVTNMFTSIVGNVFGFKALRALRLEDLRIPPAYVKTFQGPPHGIQVERDKLNKYGRPLLGCTIKPKLGLSAKNYGRAVYECLRGGLDFTKDDENVNSQPFMRWRDRFLFCAEALYKAQAETGEIKGHYLNATAGTCEEMIKRAVFARELGVPIVMHDYLTGGFTANTSLAHYCRDNGLLLHIHRAMHAVIDRQKNHGIHFRVLAKALRMSGGDHIHSGTVVGKLEGERDITLGFVDLLRDDFVEQDRSRGIYFTQDWVSLPGVLPVASGGIHVWHMPALTEIFGDDSVLQFGGGTLGHPWGNAPGAVANRVALEACVKARNEGRDLAQEGNEIIREACKWSPELAAACEVWKEIVFNFAAVDVLDK

Source Source

Source organism organism	Nicotiana tabacum
Common name common_name	common tobacco
NCBI taxonomy ID ncbi_taxonomy_id	4097

Entity 2 Entity 2 polymer

Description description	RIBULOSE 1,5-BISPHOSPHATE CARBOXYLASE/OXYGENASE (FORM IV)
Molecular weight formula_weight	14501.5 kDa
EC 编号 ec_number	4.1.1.39
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

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

MQVWPPINKKKYETLSYLPDLSQEQLLSEVEYLLKNGWVPCLEFETEHGFVYRENNKSPGYYDGRYWTMWKLPMFGCTDATQVLAEVGEAKKAYPQAWIRIIGFDNVRQVQCISFIAYKPEGY

Source Source

Source organism organism	Nicotiana tabacum
Common name common_name	common tobacco
NCBI taxonomy ID ncbi_taxonomy_id	4097

Entity 3 Entity 3 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 4 Entity 4 non-polymer

Description description	2-CARBOXYARABINITOL-1,5-DIPHOSPHATE
Molecular weight formula_weight	356.1 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 5 Entity 5 non-polymer

Description description	FORMIC ACID
Molecular weight formula_weight	46.0 kDa
Source method src_method	syn
Copy count entity_count	4

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6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

Domain ID domain_id	d4ruba1
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	d4ruba2
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	d4rubb1
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	d4rubb2
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	d4rubc1
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	d4rubc2
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	d4rubd1
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	d4rubd2
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	d4rubs_
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	d4rubt_
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	d4rubu_
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	d4rubv_
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 (12 domains)

Domain ID domain_id	4rubA01
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	4rubA02
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	4rubB01
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	4rubB02
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	4rubC01
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	4rubC02
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	4rubD01
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	4rubD02
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	4rubS00
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	4rubT00
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	4rubU00
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	4rubV00
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	204.600 Å
Unit-cell length b length_b	204.600 Å
Unit-cell length c length_c	117.400 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	24

Space group space_group	P 31 2 1
Space-group number int_tables_number	152
Crystal system crystal_system	—

Resolution resolution	2.700 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	0.2020
R_work r_work	—
R_free r_free	—

A CRYSTAL FORM OF RIBULOSE-1,5-BISPHOSPHATE CARBOXYLASE(SLASH)OXYGENASE FROM NICOTIANA TABACUM IN THE ACTIVATED STATE

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

RIBULOSE 1,5-BISPHOSPHATE CARBOXYLASE/OXYGENASE (FORM IV)

State in the Current Structure

Other States of the Same Protein in the Database

RIBULOSE 1,5-BISPHOSPHATE CARBOXYLASE/OXYGENASE (FORM IV)

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

4rub__assembly_1__model_1

4rub__assembly_1__model_1 | I(q)

4rub__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

CATH v4.4 (12 domains)

7. Citations (1)

A CRYSTAL FORM OF RIBULOSE-1,5-BISPHOSPHATE CARBOXYLASE(SLASH)OXYGENASE FROM NICOTIANA TABACUM IN THE ACTIVATED STATE

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

RIBULOSE 1,5-BISPHOSPHATE CARBOXYLASE/OXYGENASE (FORM IV)

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 1,5-BISPHOSPHATE CARBOXYLASE/OXYGENASE (FORM IV)

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

4rub__assembly_1__model_1

4rub__assembly_1__model_1 | I(q)

4rub__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

CATH v4.4 (12 domains)

7. Citations (1)