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1rxo

ACTIVATED SPINACH RUBISCO IN COMPLEX WITH ITS SUBSTRATE RIBULOSE-1,5-BISPHOSPHATE AND CALCIUM

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

RIBULOSE BISPHOSPHATE CARBOXYLASE/OXYGENASE

OrganismNot specified

UniProt P00875

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/OXYGENASE × 8 （P00870） RIBULOSE-1,5-DIPHOSPHATE × 8 CALCIUM ION × 8 water × 16 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1aa1 1aus 1ir1 1rbo 1rco 1rcx 1rxo 1upm 1upp 8qj0 8ruc 9cq5

12 assemblies

View Construct and Data Evidence
UniProt name RBL_SPIOL
Isoform —
PDB entities 1
Chains and sequence ranges Author chain B； PDBConstruct 1–475； UniProt 1–475 Author chain E； PDBConstruct 1–475； UniProt 1–475 Author chain H； PDBConstruct 1–475； UniProt 1–475 Author chain L； PDBConstruct 1–475； UniProt 1–475

RIBULOSE BISPHOSPHATE CARBOXYLASE/OXYGENASE

OrganismNot specified

UniProt P00870

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/OXYGENASE × 8 （P00875） RIBULOSE-1,5-DIPHOSPHATE × 8 CALCIUM ION × 8 water × 16 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1rbo 1rco 1rcx 1rxo 8ruc

5 assemblies

View Construct and Data Evidence
UniProt name RBS1_SPIOL
Isoform —
PDB entities 2
Chains and sequence ranges Author chain C； PDBConstruct 1–123； UniProt 58–180 Author chain F； PDBConstruct 1–123； UniProt 58–180 Author chain I； PDBConstruct 1–123； UniProt 58–180 Author chain S； 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_id1rxo
Deposition date deposition_date1996-12-06
Structure title titleACTIVATED SPINACH RUBISCO IN COMPLEX WITH ITS SUBSTRATE RIBULOSE-1,5-BISPHOSPHATE AND CALCIUM
Keywords keywordsLYASE (CARBON-CARBON); LYASE (CARBON-CARBON)
Experimental Method methodX-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.

1rxo__assembly_1__model_1

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

Download this curve (.dat)

1rxo__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1rxo__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）46.99 Å
Rg (electron density)46.28 Å
Total Rg46.64 Å
Atom count36832
Residues4616
Excluded volume652540 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1rxo__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)

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6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

Domain ID domain_idd1rxob1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamilyc.1.14 — RuBisCo, C-terminal domain
Family Family familyc.1.14.1 — RuBisCo, large subunit, C-terminal domain
Domain ID domain_idd1rxob2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.58 — Ferredoxin-like
Superfamily Superfamily superfamilyd.58.9 — RuBisCO, large subunit, small (N-terminal) domain
Family Family familyd.58.9.1 — Ribulose 1,5-bisphosphate carboxylase-oxygenase
Domain ID domain_idd1rxoc_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.73 — RuBisCO, small subunit
Superfamily Superfamily superfamilyd.73.1 — RuBisCO, small subunit
Family Family familyd.73.1.1 — RuBisCO, small subunit
Domain ID domain_idd1rxoe1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamilyc.1.14 — RuBisCo, C-terminal domain
Family Family familyc.1.14.1 — RuBisCo, large subunit, C-terminal domain
Domain ID domain_idd1rxoe2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.58 — Ferredoxin-like
Superfamily Superfamily superfamilyd.58.9 — RuBisCO, large subunit, small (N-terminal) domain
Family Family familyd.58.9.1 — Ribulose 1,5-bisphosphate carboxylase-oxygenase
Domain ID domain_idd1rxof_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.73 — RuBisCO, small subunit
Superfamily Superfamily superfamilyd.73.1 — RuBisCO, small subunit
Family Family familyd.73.1.1 — RuBisCO, small subunit
Domain ID domain_idd1rxoh1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamilyc.1.14 — RuBisCo, C-terminal domain
Family Family familyc.1.14.1 — RuBisCo, large subunit, C-terminal domain
Domain ID domain_idd1rxoh2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.58 — Ferredoxin-like
Superfamily Superfamily superfamilyd.58.9 — RuBisCO, large subunit, small (N-terminal) domain
Family Family familyd.58.9.1 — Ribulose 1,5-bisphosphate carboxylase-oxygenase
Domain ID domain_idd1rxoi_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.73 — RuBisCO, small subunit
Superfamily Superfamily superfamilyd.73.1 — RuBisCO, small subunit
Family Family familyd.73.1.1 — RuBisCO, small subunit
Domain ID domain_idd1rxol1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamilyc.1.14 — RuBisCo, C-terminal domain
Family Family familyc.1.14.1 — RuBisCo, large subunit, C-terminal domain
Domain ID domain_idd1rxol2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.58 — Ferredoxin-like
Superfamily Superfamily superfamilyd.58.9 — RuBisCO, large subunit, small (N-terminal) domain
Family Family familyd.58.9.1 — Ribulose 1,5-bisphosphate carboxylase-oxygenase
Domain ID domain_idd1rxos_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.73 — RuBisCO, small subunit
Superfamily Superfamily superfamilyd.73.1 — RuBisCO, small subunit
Family Family familyd.73.1.1 — RuBisCO, small subunit

CATH v4.4 (12 domains)

Domain ID domain_id1rxoB01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily150 — RuBisCO large subunit, N-terminal domain
Domain ID domain_id1rxoB02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily110 — Ribulose bisphosphate carboxylase, large subunit, C-terminal domain
Domain ID domain_id1rxoC00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology190 — Ribulose 1,5 Bisphosphate Carboxylase/Oxygenase
Homologous superfamily homologous superfamily10 — Ribulose bisphosphate carboxylase, small subunit
Domain ID domain_id1rxoE01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily150 — RuBisCO large subunit, N-terminal domain
Domain ID domain_id1rxoE02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily110 — Ribulose bisphosphate carboxylase, large subunit, C-terminal domain
Domain ID domain_id1rxoF00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology190 — Ribulose 1,5 Bisphosphate Carboxylase/Oxygenase
Homologous superfamily homologous superfamily10 — Ribulose bisphosphate carboxylase, small subunit
Domain ID domain_id1rxoH01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily150 — RuBisCO large subunit, N-terminal domain
Domain ID domain_id1rxoH02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily110 — Ribulose bisphosphate carboxylase, large subunit, C-terminal domain
Domain ID domain_id1rxoI00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology190 — Ribulose 1,5 Bisphosphate Carboxylase/Oxygenase
Homologous superfamily homologous superfamily10 — Ribulose bisphosphate carboxylase, small subunit
Domain ID domain_id1rxoL01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily150 — RuBisCO large subunit, N-terminal domain
Domain ID domain_id1rxoL02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily110 — Ribulose bisphosphate carboxylase, large subunit, C-terminal domain
Domain ID domain_id1rxoS00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology190 — Ribulose 1,5 Bisphosphate Carboxylase/Oxygenase
Homologous superfamily homologous superfamily10 — Ribulose bisphosphate carboxylase, small subunit
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7. Citations (2)