Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 43921.68 
• Atom Count: 2764 
• Residue Count: 407 
• Unique protein chains: 1

1Y11

Mycobacterial adenylyl cyclase Rv1264, holoenzyme, active state

• DOI: 10.2210/pdb1Y11/pdb

• Classification: LYASE
• Organism(s): Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
• Expression System: Escherichia coli BL21(DE3)


• Deposited: 2004-11-16 Released: 2005-05-24 
• Deposition Author(s): Tews, I., Findeisen, F., Sinning, I., Schultz, A., Schultz, J.E., Linder, J.U.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.3 Å
• R-Value Free: 0.299 
• R-Value Work: 0.235 

Literature

The structure of a pH-sensing mycobacterial adenylyl cyclase holoenzyme

Tews, I., Findeisen, F., Sinning, I., Schultz, A., Schultz, J.E., Linder, J.U.

(2005) Science 308: 1020-1023

• PubMed: 15890882 
• DOI: 10.1126/science.1107642
• Primary Citation of Related Structures:  
  1Y10


• PubMed Abstract: 
  

Class III adenylyl cyclases contain catalytic and regulatory domains, yet structural insight into their interactions is missing. We show that the mycobacterial adenylyl cyclase Rv1264 is rendered a pH sensor by its N-terminal domain. In the structure of the inhibited state, catalytic and regulatory domains share a large interface involving catalytic residues. In the structure of the active state, the two catalytic domains rotate by 55 degrees to form two catalytic sites at their interface. Two alpha helices serve as molecular switches. Mutagenesis is consistent with a regulatory role of the structural transition, and we suggest that the transition is regulated by pH.

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Organizational Affiliation: 

Biochemiezentrum der Universität Heidelberg, Im Neuenheimer Feld 328, 69120 Heidelberg, Germany. [e-mail]

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Hypothetical protein Rv1264/MT1302	A	407	Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)	Mutation(s): 0  EC: 4.6.1.1
Find proteins for P9WMU9 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)) Go to UniProtKB:  P9WMU9

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
SO4	A	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
GOL	A	GLYCEROL GLYCERIN; PROPANE-1,2,3-TRIOL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
1PE	A	PENTAETHYLENE GLYCOL PEG400 C10 H22 O6 JLFNLZLINWHATN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.3 Å
• R-Value Free: 0.299 
• R-Value Work: 0.235 
• Space Group: P 6₂ 2 2

Unit Cell:

Length (Å)	Angle (°)
a = 114.114	α = 90.00
b = 114.114	β = 90.00
c = 151.771	γ = 120.00

Software Package:

Software Name	Purpose
MOSFLM	data reduction
REFMAC	refinement
MOLREP	phasing
CCP4	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2004-11-16 
• Released Date: 2005-05-24 
• Deposition Author(s): Tews, I., Findeisen, F., Sinning, I., Schultz, A., Schultz, J.E., Linder, J.U.

Revision History 

• Version 1.0: 2005-05-24
  Type: Initial release
• Version 1.1: 2008-04-30
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Advisory, Derived calculations, Version format compliance