1MHS | pdb_00001mhs

Model of Neurospora crassa proton ATPase

• PDB DOI: https://doi.org/10.2210/pdb1MHS/pdb

• Classification: MEMBRANE PROTEIN, PROTON TRANSPORT
• Organism(s): Neurospora crassa
• Mutation(s): No 
• Membrane Protein: Yes  OPMPDBTMMemProtMD


• Deposited: 2002-08-21 Released: 2002-09-18 
• Deposition Author(s): Kuhlbrandt, W.

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Experimental Data Snapshot

• Method: ELECTRON CRYSTALLOGRAPHY
• Resolution: 8.00 Å

Literature

Structure, mechanism and regulation of the Neurospora plasma membrane H+-ATPase

Kuhlbrandt, W., Zeelen, J., Dietrich, J.

(2002) Science 297: 1692-1696

• PubMed: 12169656 
• DOI: https://doi.org/10.1126/science.1072574
• Primary Citation Related Structures: 
  1MHS


• PubMed Abstract: 
  

  Proton pumps in the plasma membrane of plants and yeasts maintain the intracellular pH and membrane potential. To gain insight into the molecular mechanisms of proton pumping, we built an atomic homology model of the proton pump based on the 2.6 angstrom x-ray structure of the related Ca2+ pump from rabbit sarcoplasmic reticulum. The model, when fitted to an 8 angstrom map of the Neurospora proton pump determined by electron microscopy, reveals the likely path of the proton through the membrane and shows that the nucleotide-binding domain rotates by approximately 70 degrees to deliver adenosine triphosphate (ATP) to the phosphorylation site. A synthetic peptide corresponding to the carboxyl-terminal regulatory domain stimulates ATPase activity, suggesting a mechanism for proton transport regulation.

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Organizational Affiliation: 
• Max-Planck-Institut für Biophysik, Heinrich-Hoffmann-Str. 7, 60528 Frankfurt am Main, Germany.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 199.97 kDa 
• Atom Count: 14,082 
• Modeled Residue Count: 1,840 
• Deposited Residue Count: 1,840 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Plasma Membrane ATPase	A, B	920	Neurospora crassa	Mutation(s): 0  EC: 3.6.3.6 (PDB Primary Data), 7.1.2.1 (UniProt) Membrane Entity: Yes
UniProt
Find proteins for P07038 (Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987)) Explore P07038  Go to UniProtKB:  P07038

Experimental Data & Validation

Experimental Data

• Method: ELECTRON CRYSTALLOGRAPHY
• Resolution: 8.00 Å

Space Group: P 3 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 167	α = 90
b = 167	β = 90
c = 250	γ = 120

EM Software:

Task	Software Package	Version
RECONSTRUCTION	MRC

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-09-18 
Deposition Author(s): Kuhlbrandt, W.

Revision History  

• Version 1.0: 2002-09-18
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2018-07-18
  Changes: Author supporting evidence, Data collection
• Version 1.4: 2024-02-14
  Changes: Data collection, Database references