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MolNFT v1 · #99425 · protein

Crystal structure of gated-pore mutant D138H of second DNA-binding protein under starvation from mycobacterium smegmatis

4M34 · Putative starvation-induced DNA protecting PROTEIN/FERRITIN…: “Crystal structure of gated-pore mutant D138H of second DNA-binding protein under starvation from…”. X-ray diffraction, 3 ligands (MG, FE2, CL), 4 pockets (best…

PDB
4M34
Type
protein
Length
632 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Putative starvation-induced DNA protecting PROTEIN/FERRITIN and dps
UniProt
A0QXB7
Ligands
MG, FE2, CL
Pockets
4 · best druggability 0.75

Structure

x-ray diffraction · 4 distinct chains · 73% helix, 3% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
APutative starvation-induced DNA protecting PROTEIN/FERRITIN and dpsprotein16071% helix, 3% strandA0QXB7
BPutative starvation-induced DNA protecting PROTEIN/FERRITIN and dpsprotein15774% helix, 3% strandA0QXB7
CPutative starvation-induced DNA protecting PROTEIN/FERRITIN and dpsprotein15674% helix, 3% strandA0QXB7
DPutative starvation-induced DNA protecting PROTEIN/FERRITIN and dpsprotein15973% helix, 3% strandA0QXB7

Ligands and binding sites

  • MG · Magnesium ion · metal · 6 copies · chains A, C, B, D
  • FE2 · Fe (II) ion · metal · 4 copies · chains A, B, C, D
  • CL · Chloride ion · ion · 2 copies · chains A, D

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

Pockets

4 pockets found on a 1 Å grid, 2 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
1690.750.9817empty
2680.730.9818empty
3650.340.7614empty
4600.290.7516empty

Interfaces

5 interfaces between chains.

  • A–B · 1445 Ų buried · 23 hydrogen bonds · protein-protein
  • C–D · 1436 Ų buried · 23 hydrogen bonds · protein-protein
  • A–C · 1061 Ų buried · 18 hydrogen bonds · protein-protein
  • B–C · 565 Ų buried · 17 hydrogen bonds · protein-protein
  • A–D · 53 Ų buried · 2 hydrogen bonds · protein-protein

Compared structures

  • 4M34 · Crystal structure of gated-pore mutant D138H of second DNA-Binding protein under… · the same entry in another collection · chain A against A, TM-score 1.00

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