1KMC

Crystal Structure of the Caspase-7 / XIAP-BIR2 Complex

• PDB DOI: https://doi.org/10.2210/pdb1KMC/pdb

• Classification: APOPTOSIS/HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2001-12-14 Released: 2002-01-16 
• Deposition Author(s): Riedl, S.J., Salvesen, G.S., Bode, W.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.275 
• R-Value Work: 0.234 

Starting Model: experimental

Literature

Crystal Structure of the Caspase-7 / XIAP-BIR2 Complex

Riedl, S.J., Salvesen, G.S., Bode, W.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 4-mer - A2B1C1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 96.34 kDa 
• Atom Count: 4,047 
• Modelled Residue Count: 502 
• Deposited Residue Count: 844 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Caspase-7	A, B	303	Homo sapiens	Mutation(s): 1  EC: 3.4.22 (PDB Primary Data), 3.4.22.60 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P55210 (Homo sapiens) Explore P55210  Go to UniProtKB:  P55210
PHAROS:  P55210 GTEx:  ENSG00000165806

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
X-LINKED INHIBITOR OF APOPTOSIS PROTEIN	C, D	119	Homo sapiens	Mutation(s): 0  EC: 2.3.2.27
UniProt & NIH Common Fund Data Resources
Find proteins for P98170 (Homo sapiens) Explore P98170  Go to UniProtKB:  P98170
PHAROS:  P98170 GTEx:  ENSG00000101966

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.275 
• R-Value Work: 0.234 
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 88.13	α = 90
b = 88.13	β = 90
c = 186.45	γ = 120

Software Package:

Software Name	Purpose
MOLREP	phasing
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-01-16 
Deposition Author(s): Riedl, S.J., Salvesen, G.S., Bode, W.

Revision History  

• Version 1.0: 2002-01-16
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2021-10-27
  Changes: Database references
• Version 1.4: 2023-08-16
  Changes: Data collection, Refinement description