2BK8 | pdb_00002bk8

M1 domain from titin

• PDB DOI: https://doi.org/10.2210/pdb2BK8/pdb

• Classification: IG DOMAIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2005-02-11 Released: 2006-08-09 
• Deposition Author(s): Mueller, S., Kursula, I., Wilmanns, M.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.69 Å
• R-Value Free: 
  0.234 (Depositor), 0.239 (DCC) 
• R-Value Work: 
  0.189 (Depositor), 0.193 (DCC) 
• R-Value Observed: 
  0.191 (Depositor) 

Starting Model: in silico

Literature

Structure of M1 Domain from Titin

Mueller, S., Kursula, I., Wilmanns, M.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Macromolecule Content 

• Total Structure Weight: 11.04 kDa 
• Atom Count: 918 
• Modeled Residue Count: 97 
• Deposited Residue Count: 97 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TITIN HEART ISOFORM N2-B	A	97	Homo sapiens	Mutation(s): 0  EC: 2.7.1 (PDB Primary Data), 2.7.11.1 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for Q8WZ42 (Homo sapiens) Explore Q8WZ42  Go to UniProtKB:  Q8WZ42
PHAROS:  Q8WZ42 GTEx:  ENSG00000155657

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.69 Å
• R-Value Free:  0.234 (Depositor), 0.239 (DCC) 
• R-Value Work:  0.189 (Depositor), 0.193 (DCC) 
• R-Value Observed: 0.191 (Depositor) 

Space Group: I 4₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.78	α = 90
b = 68.78	β = 90
c = 48.18	γ = 90

Software Package:

Software Name	Purpose
XDS	data reduction
XSCALE	data scaling
AMoRE	phasing
CaspR	phasing
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-08-09 
Deposition Author(s): Mueller, S., Kursula, I., Wilmanns, M.

Revision History  

• Version 1.0: 2006-08-09
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.2: 2017-07-12
  Changes: Refinement description
• Version 1.3: 2019-07-24
  Changes: Data collection
• Version 1.4: 2024-05-01
  Changes: Data collection, Database references, Other, Refinement description