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Structure of rice rubisco in complex with 6PG

Analyse Structure of rice rubisco in complex with 6PG in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
3AXM
Type
protein
Length
4,520 residues
Chains
16
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Ribulose bisphosphate carboxylase large chain; Ribulose bisphosphate carboxylase small…
EC
4.1.1.39
UniProt
P0C512, Q0INY7
Ligands
6PG, MG, NME
Pockets
20 · best druggability 0.84

Structure

x-ray diffraction · 6 distinct chains · 44% helix, 18% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ARibulose bisphosphate carboxylase large chain (EC 4.1.1.39)protein44445% helix, 18% strandP0C512
S, T, U, V, W, X, Y, ZRibulose bisphosphate carboxylase small chain, chloroplastic (EC 4.1.1.39)protein12222% helix, 24% strandQ0INY7
BRibulose bisphosphate carboxylase large chain (EC 4.1.1.39)protein44345% helix, 18% strandP0C512
CRibulose bisphosphate carboxylase large chain (EC 4.1.1.39)protein44345% helix, 18% strandP0C512
D, F, HRibulose bisphosphate carboxylase large chain (EC 4.1.1.39)protein44444% helix, 18% strandP0C512
E, GRibulose bisphosphate carboxylase large chain (EC 4.1.1.39)protein44146% helix, 18% strandP0C512

Ligands and binding sites

  • 6PG · 6-phosphogluconic acid · ligand · 8 copies · chains A, B, C, D, E, F, G, H
  • MG · Magnesium ion · metal · 8 copies · chains A, B, C, D, E, F, G, H
  • NME · Methylamine · ion · 8 copies · chains A, S, B, T, C, U, D, V, E, W, F, X, G, Y, H, Z

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

20 pockets found on a 1 Å grid, 20 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
110110.840.85139empty
211750.820.83119empty
311680.800.82106empty
49790.790.8072empty
5730.770.9922empty

Interfaces

48 interfaces between chains.

  • C–D · 3869 Ų buried · 66 hydrogen bonds · protein-protein
  • E–F · 3868 Ų buried · 68 hydrogen bonds · protein-protein
  • A–B · 3859 Ų buried · 61 hydrogen bonds · protein-protein
  • G–H · 3825 Ų buried · 64 hydrogen bonds · protein-protein
  • G–Y · 1898 Ų buried · 22 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 8 modified (carboxylation).

Compared structures

  • 3AXM · Structure of rice Rubisco in complex with 6PG · the same entry in another collection · chain Z against Z, TM-score 1.00

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