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S-adenosyl methionine transferase cocrystallized with ATP

Analyse S-adenosyl methionine transferase cocrystallized with ATP in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7LOO
Type
protein
Length
1,512 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
S-adenosylmethionine synthase
EC
2.5.1.6
UniProt
V0ZE41
Ligands
SAM, POP, MG, K, PO4
Pockets
20 · best druggability 0.85

Structure

x-ray diffraction · 3 distinct chains · 34% helix, 25% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AS-adenosylmethionine synthase (EC 2.5.1.6)protein37935% helix, 25% strandV0ZE41
B, QS-adenosylmethionine synthase (EC 2.5.1.6)protein37834% helix, 25% strandV0ZE41
RS-adenosylmethionine synthase (EC 2.5.1.6)protein37733% helix, 25% strandV0ZE41

Ligands and binding sites

  • SAM · S-adenosylmethionine · ligand · 6 copies · chains A, Q, B, R
  • POP · Pyrophosphate 2- · ligand · 4 copies · chains A, Q, B, R
  • MG · Magnesium ion · metal · 8 copies · chains A, B, R, Q
  • K · Potassium ion · metal · 4 copies · chains A, Q
  • PO4 · Phosphate ion · ion · 4 copies · chains A, Q, B, R
  • EDO · 1,2-ethanediol · additive · 9 copies · chains A, B, R, Q

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

Pockets

20 pockets found on a 1 Å grid, 9 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
12690.850.9652POP, PO4, MG, K, SAM
22980.840.9549POP, MG, SAM
32780.840.9551MG, POP, SAM
42780.830.9550MG, POP, PO4, K, SAM
54720.770.8536EDO, SAM, PO4

Interfaces

6 interfaces between chains.

  • B–R · 2938 Ų buried · 53 hydrogen bonds · protein-protein
  • A–Q · 2934 Ų buried · 56 hydrogen bonds · protein-protein
  • A–R · 497 Ų buried · 7 hydrogen bonds · protein-protein
  • B–Q · 490 Ų buried · 7 hydrogen bonds · protein-protein
  • A–B · 442 Ų buried · 6 hydrogen bonds · protein-protein

Compared structures

  • 7LOO · S-adenosyl methionine transferase cocrystallized with ATP · the same entry in another collection · chain B against B, TM-score 1.00

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