Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

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

Biological Assembly 2  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 63.63 kDa 
• Atom Count: 3782 
• Modelled Residue Count: 467 
• Deposited Residue Count: 548 
• Unique protein chains: 1

5WJB

Crystal Structure of Amino Acids 1733-1797 of Human Beta Cardiac Myosin Fused to Gp7

• DOI: 10.2210/pdb5WJB/pdb

• Classification: Actin/DNA Binding Protein
• Organism(s): Bacillus virus phi29, Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2017-07-21 Released: 2017-08-09 
• Deposition Author(s): Andreas, M.P., Ajay, G., Gellings, J., Rayment, I.
• Funding Organization(s): National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.300 
• R-Value Work: 0.249 
• R-Value Observed: 0.251 

Literature

Design considerations in coiled-coil fusion constructs for the structural determination of a problematic region of the human cardiac myosin rod.

Andreas, M.P., Ajay, G., Gellings, J.A., Rayment, I.

(2017) J Struct Biol 200: 219-228

• PubMed: 28743637 
• DOI: 10.1016/j.jsb.2017.07.006
• Primary Citation of Related Structures:  
  5WJB, 5WJ7, 5WME, 5WLZ, 5WLQ


• PubMed Abstract: 
  

X-ray structural determination of segments of the myosin rod has proved difficult because of the strong salt-dependent aggregation properties and repeating pattern of charges on the surface of the coiled-coil that lead to the formation of paracrystals. This problem has been resolved in part through the use of globular assembly domains that improve protein folding and prevent aggregation. The primary consideration now in designing coiled-coil fusion constructs for myosin is deciding where to truncate the coiled-coil and which amino acid residues to include from the folding domain. This is especially important for myosin that contains numerous regions of low predicted coiled-coil propensity. Here we describe the strategy adopted to determine the structure of the region that extends from Arg1677 - Leu1797 that included two areas that do not show a strong sequence signature of a conventional left-handed coiled coil or canonical heptad repeat. This demonstrates again that, with careful choice of fusion constructs, overlapping structures exhibit very similar conformations for the myosin rod fragments in the canonical regions. However, conformational variability is seen around Leu1706 which is a hot spot for cardiomyopathy mutations suggesting that this might be important for function.

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Organizational Affiliation: 

Department of Biochemistry, University of Wisconsin-Madison, WI 53706, USA. Electronic address: [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Capsid assembly scaffolding protein,Myosin-7	A, B, C, D	137	Bacillus virus phi29, Homo sapiens This entity is chimeric	Mutation(s): 0  Gene Names: 7, MYH7, MYHCB
Find proteins for P13848 (Bacillus phage phi29) Explore P13848  Go to UniProtKB:  P13848
Find proteins for P12883 (Homo sapiens) Explore P12883  Go to UniProtKB:  P12883
NIH Common Fund Data Resources
PHAROS:  P12883 GTEx:  ENSG00000092054

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.300 
• R-Value Work: 0.249 
• R-Value Observed: 0.251 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 26.456	α = 90
b = 93.706	β = 90
c = 234.096	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing
REFMAC	refinement

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2017-07-21 
• Released Date: 2017-08-09 
Deposition Author(s): Andreas, M.P., Ajay, G., Gellings, J., Rayment, I.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)	United States	R21 HL111237

Revision History  

• Version 1.0: 2017-08-09
  Type: Initial release
  
• Version 1.1: 2017-09-27
  Changes: Author supporting evidence, Refinement description
• Version 1.2: 2017-12-27
  Changes: Database references
• Version 1.3: 2019-12-04
  Changes: Author supporting evidence