6HYQ | pdb_00006hyq

Regulatory subunit of a cAMP-independent protein kinase A from Trypanosoma cruzi bound to guanosine

• PDB DOI: https://doi.org/10.2210/pdb6HYQ/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Trypanosoma cruzi
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2018-10-22 Released: 2019-11-13 
• Deposition Author(s): Volpato Santos, Y., Lorentzen, E., Basquin, J., Boshart, M.
• Funding Organization(s): German Research Foundation

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.08 Å
• R-Value Free: 
  0.319 (Depositor), 0.320 (DCC) 
• R-Value Work: 
  0.260 (Depositor), 0.260 (DCC) 
• R-Value Observed: 
  0.263 (Depositor) 

Literature

Regulatory subunit of a cAMP-independent protein kinase A from Trypanosoma cruzi in complex with guanosine

Volpato Santos, Y., Lorentzen, E., Basquin, J., Boshart, M.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Biological Assembly 3  

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

Biological assembly 3 assigned by authors.

Biological Assembly 4  

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

Biological assembly 4 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 140.23 kDa 
• Atom Count: 9,446 
• Modeled Residue Count: 1,125 
• Deposited Residue Count: 1,216 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Protein kinase A regulatory subunit	A, B, C, D	304	Trypanosoma cruzi	Mutation(s): 0  Gene Names: PKAR, C3747_37g237
UniProt
Find proteins for Q86RB0 (Trypanosoma cruzi) Explore Q86RB0  Go to UniProtKB:  Q86RB0

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GMP (Subject of Investigation/LOI)	E [auth A], F [auth A], G [auth B], H [auth B], J [auth C], K [auth C], L [auth D], M [auth D]	GUANOSINE C10 H13 N5 O5 NYHBQMYGNKIUIF-UUOKFMHZSA-N
ACT	I [auth B]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.08 Å
• R-Value Free:  0.319 (Depositor), 0.320 (DCC) 
• R-Value Work:  0.260 (Depositor), 0.260 (DCC) 
• R-Value Observed: 0.263 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 59.91	α = 90
b = 80.819	β = 92.799
c = 149.343	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2019-11-13 
Deposition Author(s): Volpato Santos, Y., Lorentzen, E., Basquin, J., Boshart, M.

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Funding Organization	Location	Grant Number
German Research Foundation	Germany	Bo1100/7-1

Revision History  

• Version 1.0: 2019-11-13
  Type: Initial release
  
• Version 1.1: 2024-04-10
  Changes: Data collection, Database references, Refinement description