5WDD image
Entry Detail
PDB ID:
5WDD
Keywords:
Title:
Crystal structure of chicken BOK
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2017-07-04
Release Date:
2018-02-28
Method Details:
Experimental Method:
Resolution:
1.80 Å
R-Value Free:
0.23
R-Value Work:
0.19
R-Value Observed:
0.19
Space Group:
P 1 21 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Bcl-2-related ovarian killer protein
Chain IDs:A, B
Chain Length:168
Number of Molecules:2
Biological Source:Gallus gallus
Ligand Molecules
Primary Citation
Embryogenesis and Adult Life in the Absence of Intrinsic Apoptosis Effectors BAX, BAK, and BOK.
Cell 173 1217 1230.e17 (2018)
PMID: 29775594 DOI: 10.1016/j.cell.2018.04.036

Abstact

Intrinsic apoptosis, reliant on BAX and BAK, has been postulated to be fundamental for morphogenesis, but its precise contribution to this process has not been fully explored in mammals. Our structural analysis of BOK suggests close resemblance to BAX and BAK structures. Notably, Bok-/-Bax-/-Bak-/- animals exhibited more severe defects and died earlier than Bax-/-Bak-/- mice, implying that BOK has overlapping roles with BAX and BAK during developmental cell death. By analyzing Bok-/-Bax-/-Bak-/- triple-knockout mice whose cells are incapable of undergoing intrinsic apoptosis, we identified tissues that formed well without this process. We provide evidence that necroptosis, pyroptosis, or autophagy does not substantially substitute for the loss of apoptosis. Albeit very rare, unexpected attainment of adult Bok-/-Bax-/-Bak-/- mice suggests that morphogenesis can proceed entirely without apoptosis mediated by these proteins and possibly without cell death in general.

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Primary Citation of related structures