GL1X · GenesisL1 explorer

MolNFT v1 · #141696 · protein

Cryo-EM structure of the red algal psi-lhcr

5ZGB · Psaa: “Cryo-EM structure of the red algal psi-lhcr”. Electron microscopy, 11 ligands (CLA, ZEX, BCR), 20 pockets (best druggability 0.86). MolNFT v1 #141696 on GenesisL1: 3D structure, binding sites and pockets in GL1X.

PDB
5ZGB
Type
protein
Length
3,102 residues
Chains
17
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Psaa; Psab; Psac; Psad; Psae; Psaf; Psai; Psaj; Psak; Psal; Psam; Psao; LHCR1; LHCR2…
EC
1.97.1.12
UniProt
Q85FY7, Q85FY6, Q85G47, Q85FY0, Q85FZ1, Q85FS9, Q85FQ6, Q85FS8, Q85G51, Q85FP8, Q85G73, M1VFJ4, M1VKK5, M1UU36
Ligands
CLA, ZEX, BCR, SF4, PQN, LHG, CL0, DGD, 3XQ, 1DO, BGC
Pockets
20 · best druggability 0.86

Structure

electron microscopy · 16 distinct chains · 50% helix, 3% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
APsaa (EC 1.97.1.12)protein74157% helix, 3% strandQ85FY7
BPsab (EC 1.97.1.12)protein73156% helix, 2% strandQ85FY6
CPsac (EC 1.97.1.12)protein8020% helix, 20% strandQ85G47
DPsadprotein11916% helix, 17% strandQ85FY0
EPsaeprotein610% helix, 30% strandQ85FZ1
FPsafprotein15458% helix, 3% strandQ85FS9
IPsaiprotein3174% helix, 0% strandQ85FQ6
JPsajprotein3866% helix, 0% strandQ85FS8
KPsakprotein5968% helix, 0% strandQ85G51
LPsalprotein11962% helix, 0% strandQ85FP8
MPsamprotein2778% helix, 0% strandQ85G73
OPsaoprotein8347% helix, 0% strandM1VFJ4
1LHCR1protein16938% helix, 0% strandM1VKK5
2, 5LHCR2protein17547% helix, 0% strandM1UU36
3LHCR3protein17047% helix, 0% strand—
4LHCR1protein17038% helix, 0% strandM1VKK5

Ligands and binding sites

  • CLA · Chlorophyll A · ligand · 157 copies · chains A, J, B, 2, 3, K, O, L, I, F, M, 5, 1, 4
  • ZEX · (1R,2S)-4-{(1E,3E,5E,7E,9E,11E,13E,15E,17E)-18-[(4S)-4-hydroxy-2,6,6-trimethylcyclohex-1-en-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaen-1-yl}-2,5,5-trimethylcyclohex-3-en-1-ol · ligand · 25 copies · chains 1, 2, 3, K, 4, 5, M, I
  • BCR · Beta-carotene · ligand · 21 copies · chains A, B, F, J, I, K, 3, L, O
  • SF4 · Iron/sulfur cluster · ligand · 3 copies · chains A, B, C
  • PQN · Phylloquinone · ligand · 2 copies · chains A, J, B
  • LHG · 1,2-dipalmitoyl-phosphatidyl-glycerole · ligand · 2 copies · chains A
  • CL0 · Chlorophyll A isomer · ligand · chains A, B
  • DGD · Digalactosyl diacyl glycerol (dgdg) · ligand · chains B, C
  • 3XQ · (2S)-2,3-dihydroxypropyl octadecanoate · ligand · chains B, F, J
  • 1DO · 1-dodecanol · ligand · chains A, 3
  • BGC · beta-D-glucopyranose · sugar · chains A, 3

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
110140.860.8687CL0, CLA
29440.800.8184CLA, DGD
38880.730.7798CLA, LHG
4500.720.9921SF4
58000.710.7685CLA, 3XQ

Interfaces

41 interfaces between chains.

  • A–B · 3496 Ų buried · 36 hydrogen bonds · protein-protein
  • C–D · 1477 Ų buried · 20 hydrogen bonds · protein-protein
  • B–F · 1163 Ų buried · 12 hydrogen bonds · protein-protein
  • A–F · 1147 Ų buried · 6 hydrogen bonds · protein-protein
  • B–C · 862 Ų buried · 5 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 1 disulfide (disulfide).

Compared structures

  • 5ZGB · Cryo-EM structure of the red algal PSI-LHCR · the same entry in another collection · chain 5 against 5, TM-score 1.00

Analyse

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