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MolNFT v1 · #177305 · protein

Structure of the catspermasome

7EEB · Enhanced green fluorescent PROTEIN,CATION channel sperm…: “Structure of the catspermasome”. Electron microscopy, 4 ligands (9Z9, NAG, BMA), 20 pockets (best druggability 0.88). MolNFT v1 #177305 on GenesisL1: 3D structure, binding…

PDB
7EEB
Type
protein
Length
6,003 residues
Chains
14
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Enhanced green fluorescent PROTEIN,CATION channel sperm- associated protein 1; Cation…
UniProt
Q91ZR5, A2ARP9, Q80W99, Q8BVN3, A2RTF1, C6KI89, E9Q9F6, P0DP43, Q3V161, A0A2R8VHF7, D3Z338, Q9DAM2, Q9CQP8
Ligands
9Z9, NAG, BMA, NA
Pockets
20 · best druggability 0.88

Structure

electron microscopy · 14 distinct chains · 34% helix, 24% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AEnhanced green fluorescent PROTEIN,CATION channel sperm- associated protein 1protein25881% helix, 0% strandQ91ZR5
BCation channel sperm-associated protein 2protein28177% helix, 0% strandA2ARP9
CCation channel sperm-associated protein 3protein27883% helix, 0% strandQ80W99
DCation channel sperm-associated protein 4protein24278% helix, 0% strandQ8BVN3
ECation channel sperm-associated protein subunit betaprotein105310% helix, 36% strandA2RTF1
FCation channel sperm-associated protein subunit gamma 2protein104215% helix, 36% strandC6KI89
GCation channel sperm-associated protein subunit deltaprotein7148% helix, 38% strandE9Q9F6
HCation channel sperm-associated protein subunit epsilonprotein91612% helix, 37% strandP0DP43
LKazal-like domain-containing proteinprotein59766% helix, 4% strandQ3V161
JTransmembrane protein 249protein16133% helix, 17% strandA0A2R8VHF7
MTransmembrane protein 262protein11675% helix, 0% strandD3Z338
NUnknownprotein2864% helix, 0% strand—
IEf-hand calcium-binding domain-containing protein 9protein17460% helix, 5% strandQ9DAM2
KCation channel sperm-associated protein subunit zetaprotein14376% helix, 0% strandQ9CQP8

Ligands and binding sites

  • 9Z9 · (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en · ligand · 3 copies · chains A, D
  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 41 copies · chains E, F, G, H, L
  • BMA · beta-D-mannopyranose · sugar · 21 copies · chains E, G, H
  • NA · Sodium ion · metal · 2 copies · chains A, B, C, D

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
110970.880.89108empty
23570.860.9534NA
35590.850.9072empty
47030.850.88114empty
56860.840.8889empty

Interfaces

26 interfaces between chains.

  • E–F · 3414 Ų buried · 31 hydrogen bonds · protein-protein
  • F–H · 2083 Ų buried · 25 hydrogen bonds · protein-protein
  • B–C · 1999 Ų buried · 10 hydrogen bonds · protein-protein
  • A–D · 1846 Ų buried · 7 hydrogen bonds · protein-protein
  • A–B · 1828 Ų buried · 12 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 32 disulfide, 25 glycan (disulfide, N-glycosylation, glycosylation).

Compared structures

  • 7EEB · Structure of the CatSpermasome · the same entry in another collection · chain G against G, TM-score 1.00

Analyse

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