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Pseudo-atomic model of microtubule-bound S.pombe kinesin-5 motor domain in the AMPPNP state (based on cryo-electron microscopy experiment): the N-terminus conformation allows formation of a cover neck bundle.

Electron Microscopy
9.3Å resolution
PDB entry 5m5i coloured by chain, front view.
PDB entry 5m5i coloured by chain, side view.
PDB entry 5m5i coloured by chain, top view.
Source organisms:
Assembly composition:
hetero trimer (preferred)
Entry contents: 3 distinct polypeptide molecules

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Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero trimer
PDBe Complex ID: PDB-CPX-150213

Macromolecules

Tubulin alpha-1D chain
Chain: A
Length: 451 amino acids
Theoretical weight: 50.11 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q2HJ86 (Residues: 1-451; Coverage: 100%)
Gene name: TUBA1D
Pfam:
InterPro:
Tubulin alpha-1D chain in PDB entry 5m5i, assembly 1, front view.
Tubulin alpha-1D chain in PDB entry 5m5i, assembly 1, side view.
Tubulin alpha-1D chain in PDB entry 5m5i, assembly 1, top view.
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Tubulin beta-2B chain
Chain: B
Length: 445 amino acids
Theoretical weight: 49.91 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q6B856 (Residues: 1-445; Coverage: 100%)
Gene name: TUBB2B
Pfam:
InterPro:
Tubulin beta-2B chain in PDB entry 5m5i, assembly 1, front view.
Tubulin beta-2B chain in PDB entry 5m5i, assembly 1, side view.
Tubulin beta-2B chain in PDB entry 5m5i, assembly 1, top view.
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Kinesin-like protein cut7
Chain: C
Length: 369 amino acids
Theoretical weight: 40.74 KDa
Source organism: Schizosaccharomyces pombe 972h-
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P24339 (Residues: 64-432; Coverage: 34%)
Gene names: SPAC25G10.07c, cut7
Pfam: Kinesin motor domain
InterPro:
Kinesin-like protein cut7 in PDB entry 5m5i, assembly 1, front view.
Kinesin-like protein cut7 in PDB entry 5m5i, assembly 1, side view.
Kinesin-like protein cut7 in PDB entry 5m5i, assembly 1, top view.
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