4lf1

Hexameric Form II RuBisCO from Rhodopseudomonas palustris, activated and complexed with 2-CABP

Method: X-RAY DIFFRACTION

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

Ribulose bisphosphate carboxylase

Rhodopseudomonas palustris

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 6	2-CARBOXYARABINITOL-1,5-DIPHOSPHATE × 6 MAGNESIUM ION × 6 water × 6	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	2-CARBOXYARABINITOL-1,5-DIPHOSPHATE × 2 MAGNESIUM ION × 2 water × 2	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 2	2-CARBOXYARABINITOL-1,5-DIPHOSPHATE × 2 MAGNESIUM ION × 2 water × 2	Consistent with protein count
4	Protein homooligomer	Homooligomer	Protein 2	2-CARBOXYARABINITOL-1,5-DIPHOSPHATE × 2 MAGNESIUM ION × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RBL2_RHOPA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 21–481； UniProt 1–461 Author chain B； PDBConstruct 21–481； UniProt 1–461 Author chain C； PDBConstruct 21–481； UniProt 1–461 Author chain D； PDBConstruct 21–481； UniProt 1–461 Author chain E； PDBConstruct 21–481； UniProt 1–461 Author chain F； PDBConstruct 21–481； UniProt 1–461

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	4lf1
Deposition date deposition_date	2013-06-26
Structure title title	Hexameric Form II RuBisCO from Rhodopseudomonas palustris, activated and complexed with 2-CABP
Keywords keywords	;Form II, CbbM, Protein, 2-CABP, Transition-State Analog, Reaction Intermediate Analogue, carbon fixation, enzyme activation, activated, carbamylation, photosynthesis, lyase, oxidoreductase ;; lyase, oxidoreductase
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.

4lf1__assembly_1__model_1

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

Download this curve (.dat)

4lf1__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4lf1__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	41.50 Å
Rg (electron density)	40.61 Å
Total Rg	40.99 Å
Atom count	21260
Residues	2725
Excluded volume	375120 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4lf1__assembly_1__model_1`	hexameric （6）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`4lf1__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`4lf1__assembly_3__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
4	1	`4lf1__assembly_4__model_1`	dimeric （2）	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 (4)

Entity 1 Entity 1 polymer

Description description	Ribulose bisphosphate carboxylase
Molecular weight formula_weight	52757.3 kDa
EC 编号 ec_number	4.1.1.39
Source method src_method	man
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F
Atom count atom_count	21750

MGSSHHHHHHSSGLVPRGSHMDQSNRYANLNLKESELIAGGRHVLCAYIMKPKAGFGNFIQTAAHFAAESSTGTNVEVSTTDDFTRGVDALVYEVDEANSLMKIAYPIELFDRNVIDGRAMIASFLTLTIGNNQGMGDVEYAKMYDFYVPPAYLKLFDGPSTTIKDLWRVLGRPVINGGFIVGTIIKPKLGLRPQPFANACYDFWLGGDFIKNDEPQGNQVFAPFKDTVRAVADAMRRAQDKTGEAKLFSFNITADDHYEMLARGEFILETFADNADHIAFLVDGYVAGPAAVTTARRAFPKQYLHYHRAGHGAVTSPQSKRGYTAFVLSKMARLQGASGIHTGTMGFGKMEGEAADRAIAYMITEDAADGPYFHQEWLGMNPTTPIISGGMNALRMPGFFDNLGHSNLIMTAGGGAFGHVDGGAAGAKSLRQAEQCWKQGADPVEFAKDHREFARAFESFPQDADKLYPNWRAKLKPQAA

Source Source

Source organism organism	Rhodopseudomonas palustris
NCBI taxonomy ID ncbi_taxonomy_id	258594
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 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	6

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	6

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	470

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6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

Domain ID domain_id	d4lf1a1
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.58.9.0 — automated matches

Domain ID domain_id	d4lf1a2
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	d4lf1b1
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.58.9.0 — automated matches

Domain ID domain_id	d4lf1b2
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	d4lf1c1
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.58.9.0 — automated matches

Domain ID domain_id	d4lf1c2
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	d4lf1d1
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.58.9.0 — automated matches

Domain ID domain_id	d4lf1d2
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	d4lf1e1
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.58.9.0 — automated matches

Domain ID domain_id	d4lf1e2
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	d4lf1f1
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.58.9.0 — automated matches

Domain ID domain_id	d4lf1f2
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

CATH v4.4 (12 domains)

Domain ID domain_id	4lf1A01
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	4lf1A02
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	4lf1B01
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	4lf1B02
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	4lf1C01
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	4lf1C02
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	4lf1D01
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	4lf1D02
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	4lf1E01
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	4lf1E02
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	4lf1F01
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	4lf1F02
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

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Unit-cell length a length_a	75.033 Å
Unit-cell length b length_b	100.720 Å
Unit-cell length c length_c	100.690 Å
Unit-cell angle α angle_alpha	66.51 °
Unit-cell angle β angle_beta	108.32 °
Unit-cell angle γ angle_gamma	95.41 °
Molecules per unit cell Z z_pdb	6

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

Resolution resolution	2.380 Å
Low-resolution limit resolution_low	71.290 Å
R factor r_factor	0.2658
R_work r_work	0.2632
R_free r_free	0.3153

Hexameric Form II RuBisCO from Rhodopseudomonas palustris, activated and complexed with 2-CABP

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

Ribulose bisphosphate carboxylase

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

4lf1__assembly_1__model_1

4lf1__assembly_1__model_1 | I(q)

4lf1__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

CATH v4.4 (12 domains)

7. Citations (1)

Hexameric Form II RuBisCO from Rhodopseudomonas palustris, activated and complexed with 2-CABP

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

Ribulose bisphosphate carboxylase

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

4lf1__assembly_1__model_1

4lf1__assembly_1__model_1 | I(q)

4lf1__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

CATH v4.4 (12 domains)

7. Citations (1)