1G6H

CRYSTAL STRUCTURE OF THE ADP CONFORMATION OF MJ1267, AN ATP-BINDING CASSETTE OF AN ABC TRANSPORTER

• PDB DOI: https://doi.org/10.2210/pdb1G6H/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Methanocaldococcus jannaschii
• Mutation(s): No 


• Deposited: 2000-11-06 Released: 2001-07-18 
• Deposition Author(s): Yuan, Y.-R., Martsinkevich, O., Karpowich, N., Millen, L., Thomas, P.J., Hunt, J.F.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.252 
• R-Value Work: 0.217 
• R-Value Observed: 0.217 

Literature

Crystal structures of the MJ1267 ATP binding cassette reveal an induced-fit effect at the ATPase active site of an ABC transporter.

Karpowich, N., Martsinkevich, O., Millen, L., Yuan, Y.R., Dai, P.L., MacVey, K., Thomas, P.J., Hunt, J.F.

(2001) Structure 9: 571-586

• PubMed: 11470432 
• DOI: https://doi.org/10.1016/s0969-2126(01)00617-7
• Primary Citation of Related Structures:  
  1G6H, 1GAJ


• PubMed Abstract: 
  

  ATP binding cassette (ABC) transporters are ubiquitously distributed transmembrane solute pumps that play a causative role in numerous diseases. Previous structures have defined the fold of the ABC and established the flexibility of its alpha-helical subdomain. But the nature of the mechanical changes that occur at each step of the chemical ATPase cycle have not been defined.

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Organizational Affiliation: 

Department of Biological Sciences, 702A Fairchild Center, MC2434, Columbia University, New York, NY 10027, USA.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 29.69 kDa 
• Atom Count: 2,456 
• Modelled Residue Count: 254 
• Deposited Residue Count: 257 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HIGH-AFFINITY BRANCHED-CHAIN AMINO ACID TRANSPORT ATP-BINDING PROTEIN	A	257	Methanocaldococcus jannaschii	Mutation(s): 0
UniProt
Find proteins for Q58663 (Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440)) Explore Q58663  Go to UniProtKB:  Q58663

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ADP	D [auth A]	ADENOSINE-5'-DIPHOSPHATE C10 H15 N5 O10 P2 XTWYTFMLZFPYCI-KQYNXXCUSA-N
MMC	C [auth A]	METHYL MERCURY ION C H3 Hg DBUXSCUEGJMZAE-UHFFFAOYSA-N
MG	B [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.252 
• R-Value Work: 0.217 
• R-Value Observed: 0.217 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 107.807	α = 90
b = 60.463	β = 92.16
c = 42.73	γ = 90

Software Package:

Software Name	Purpose
SHARP	phasing
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-07-18 
Deposition Author(s): Yuan, Y.-R., Martsinkevich, O., Karpowich, N., Millen, L., Thomas, P.J., Hunt, J.F.

Revision History  

• Version 1.0: 2001-07-18
  Type: Initial release
  
• Version 1.1: 2008-04-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-07
  Changes: Data collection, Database references, Derived calculations