6WP8

Proton-pumping mutant of Mastigocladopsis repens rhodopsin chloride pump

• PDB DOI: https://doi.org/10.2210/pdb6WP8/pdb

• Classification: MEMBRANE PROTEIN
• Organism(s): Mastigocladopsis repens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2020-04-26 Released: 2020-07-29 
• Deposition Author(s): Besaw, J.E., Ernst, O.P., Ou, W., Morizumi, T.
• Funding Organization(s): Natural Sciences and Engineering Research Council (NSERC, Canada)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.247 
• R-Value Work: 0.228 
• R-Value Observed: 0.230 

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Homo 3-mer - A3 

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

Macromolecule Content

• Total Structure Weight: 27.72 kDa 
• Atom Count: 1,815 
• Modelled Residue Count: 222 
• Deposited Residue Count: 240 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Proton-pumping rhodopsin chloride pump	A	240	Mastigocladopsis repens	Mutation(s): 0

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
BOG	C [auth A]	octyl beta-D-glucopyranoside C14 H28 O6 HEGSGKPQLMEBJL-RKQHYHRCSA-N
RET	B [auth A]	RETINAL C20 H28 O NCYCYZXNIZJOKI-OVSJKPMPSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.247 
• R-Value Work: 0.228 
• R-Value Observed: 0.230 
• Space Group: P 3 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 103.741	α = 90
b = 103.741	β = 90
c = 55.213	γ = 120

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: 2020-07-29 
Deposition Author(s): Besaw, J.E., Ernst, O.P., Ou, W., Morizumi, T.

---

Funding Organization	Location	Grant Number
Natural Sciences and Engineering Research Council (NSERC, Canada)	Canada	--

Revision History  

• Version 1.0: 2020-07-29
  Type: Initial release
  
• Version 1.1: 2020-08-12
  Changes: Database references, Structure summary
• Version 1.2: 2020-11-11
  Changes: Database references
• Version 1.3: 2023-10-18
  Changes: Data collection, Database references, Refinement description