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MolNFT v1 · #109256 · protein

Crystal structure of serine hydroxymethyltransferase from streptococcus thermophilus

4WXB: “Crystal structure of serine hydroxymethyltransferase from streptococcus thermophilus”. X-ray diffraction, 1 ligand (NA), 20 pockets (best druggability 0.83). MolNFT v1 #109256 on GenesisL1: 3D structure, binding sites and pockets in…

PDB
4WXB
Type
protein
Length
1,620 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Serine hydroxymethyltransferase
EC
2.1.2.1
UniProt
Q5M0B4
Ligands
NA
Pockets
20 · best druggability 0.83

Structure

x-ray diffraction · 2 distinct chains · 48% helix, 14% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, DSerine hydroxymethyltransferase (EC 2.1.2.1)protein41047% helix, 13% strandQ5M0B4
B, CSerine hydroxymethyltransferase (EC 2.1.2.1)protein40049% helix, 14% strandQ5M0B4

Ligands and binding sites

  • NA · Sodium ion · metal · 3 copies · chains B, C, D
  • CIT · Citric acid · additive · 4 copies · chains A, C, B, D
  • CAC · Cacodylate ion · additive · 4 copies · chains A, C, B, D
  • GOL · Glycerol · additive · 4 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, 10 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
19970.830.84101empty
26680.810.8592CIT, CAC
37700.780.8281CIT, CAC
45230.760.8464CIT, CAC
56700.720.7951CIT, CAC

Interfaces

3 interfaces between chains.

  • A–C · 3309 Ų buried · 35 hydrogen bonds · protein-protein
  • B–D · 3279 Ų buried · 36 hydrogen bonds · protein-protein
  • A–B · 752 Ų buried · 7 hydrogen bonds · protein-protein

Compared structures

  • 4WXB · Crystal Structure of Serine Hydroxymethyltransferase from Streptococcus thermophilus · the same entry in another collection · chain A against A, TM-score 1.00
  • Q5M0B4 · AlphaFold monomer V2.0 prediction for serine hydroxymethyltransferase (Q5M0B4) · a predicted model of the same protein · chain B against A, TM-score 0.99

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