6BZS

Human ABCC6 NBD1 in Apo state

  • Classification: TRANSPORT PROTEIN
  • Organism(s): Homo sapiens
  • Expression System: Escherichia coli BL21(DE3)
  • Mutation(s): Yes 

  • Deposited: 2017-12-26 Released: 2018-09-05 
  • Deposition Author(s): Zheng, A., Thibodeau, P.H.
  • Funding Organization(s): National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI), National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK), National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.215 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural analysis reveals pathomechanisms associated with pseudoxanthoma elasticum-causing mutations in the ABCC6 transporter.

Ran, Y.Zheng, A.Thibodeau, P.H.

(2018) J Biol Chem 293: 15855-15866

  • DOI: 10.1074/jbc.RA118.004806
  • Primary Citation of Related Structures:  
    6BZS

  • PubMed Abstract: 
  • Mutations in ABC subfamily C member 6 (ABCC6) transporter are associated with pseudoxanthoma elasticum (PXE), a disease resulting in ectopic mineralization and affecting multiple tissues. A growing number of mutations have been identified in individuals with PXE ...

    Mutations in ABC subfamily C member 6 (ABCC6) transporter are associated with pseudoxanthoma elasticum (PXE), a disease resulting in ectopic mineralization and affecting multiple tissues. A growing number of mutations have been identified in individuals with PXE. For most of these variants, no mechanistic information is available regarding their role in normal and pathophysiologies. To assess how PXE-associated mutations alter ABCC6 biosynthesis and structure, we biophysically and biochemically evaluated the N-terminal nucleotide-binding domain. A high-resolution X-ray structure of nucleotide-binding domain 1 (NBD1) of human ABCC6 was obtained at 2.3 Å that provided a template on which to evaluate PXE-causing mutations. Biochemical analysis of mutations in this domain indicated that multiple PXE-causing mutations altered its structural properties. Analyses of the full-length protein revealed a strong correlation between the alterations in NBD properties and the processing and expression of ABCC6. These results suggest that a significant fraction of PXE-associated mutations located in NBD1 causes changes in its structural properties and that these mutation-induced alterations directly affect the maturation of the full-length ABCC6 protein.


    Organizational Affiliation

    From the Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15219 thibodea@pitt.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Multidrug resistance-associated protein 6 A238Homo sapiensMutation(s): 1 
Gene Names: ABCC6ARAMRP6
Find proteins for O95255 (Homo sapiens)
Explore O95255 
Go to UniProtKB:  O95255
NIH Common Fund Data Resources
PHAROS:  O95255
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download Ideal Coordinates CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.215 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 94.204α = 90
b = 94.204β = 90
c = 46.11γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
PHENIXrefinement
d*TREKdata reduction
d*TREKdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)United States--
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)United StatesDK083284
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM122091

Revision History  (Full details and data files)

  • Version 1.0: 2018-09-05
    Type: Initial release
  • Version 1.1: 2018-09-19
    Changes: Data collection, Database references
  • Version 1.2: 2018-10-24
    Changes: Data collection, Database references
  • Version 1.3: 2019-12-18
    Changes: Author supporting evidence