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Structure of CTF4 trimer in complex with two cmg helicases

Analyse Structure of CTF4 trimer in complex with two cmg helicases in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
6PTN
Type
protein
Length
11,517 residues
Chains
25
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
DNA polymerase alpha-binding protein; DNA replication complex gins protein PSF1; DNA…
EC
3.6.4.12
UniProt
Q01454, Q12488, P40359, Q12146, Q03406, Q08032, P29469, P24279, P30665, P29496, P53091, P38132
Ligands
ATP
Pockets
20 · best druggability 0.89

Structure

electron microscopy · 13 distinct chains · 32% helix, 13% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
E, GDNA polymerase alpha-binding proteinprotein42425% helix, 30% strandQ01454
FDNA polymerase alpha-binding proteinprotein43125% helix, 29% strandQ01454
a, ADNA replication complex gins protein PSF1protein20851% helix, 5% strandQ12488
b, BDNA replication complex gins protein PSF2protein18141% helix, 7% strandP40359
c, CDNA replication complex gins protein PSF3protein15947% helix, 6% strandQ12146
d, DDNA replication complex gins protein SLD5protein23451% helix, 5% strandQ03406
h, HCell division control protein 45protein55342% helix, 8% strandQ08032
i, 2DNA replication licensing factor MCM2 (EC 3.6.4.12)protein63431% helix, 7% strandP29469
j, 3DNA replication licensing factor MCM3 (EC 3.6.4.12)protein59429% helix, 14% strandP24279
k, 4DNA replication licensing factor MCM4 (EC 3.6.4.12)protein68230% helix, 12% strandP30665
l, 5Minichromosome maintenance protein 5 (EC 3.6.4.12)protein59731% helix, 13% strandP29496
m, 6DNA replication licensing factor MCM6 (EC 3.6.4.12)protein61429% helix, 10% strandP53091
n, 7DNA replication licensing factor MCM7 (EC 3.6.4.12)protein66327% helix, 10% strandP38132

Ligands and binding sites

  • ATP · Adenosine-5'-triphosphate · ligand · 6 copies · chains i, m, j, l, 2, 6, 3, 5

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
18860.890.92126empty
210350.880.89140empty
37790.870.9091empty
410030.870.89115ATP
511260.870.88131empty

Interfaces

57 interfaces between chains.

  • k–m · 3851 Ų buried · 25 hydrogen bonds · protein-protein
  • 4–6 · 3849 Ų buried · 25 hydrogen bonds · protein-protein
  • j–l · 3691 Ų buried · 27 hydrogen bonds · protein-protein
  • 3–5 · 3688 Ų buried · 27 hydrogen bonds · protein-protein
  • i–m · 3536 Ų buried · 22 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 4 disulfide (disulfide).

Compared structures

  • 6PTN · Structure of Ctf4 trimer in complex with two CMG helicases · the same entry in another collection · chain l against l, TM-score 1.00

Analyse

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