6BZR

Human ABCC6 NBD2 in ADP-bound state

• PDB DOI: https://doi.org/10.2210/pdb6BZR/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2017-12-25 Released: 2019-01-23 
• 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)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 
  0.264 (Depositor), 0.260 (DCC) 
• R-Value Work: 
  0.231 (Depositor), 0.230 (DCC) 
• R-Value Observed: 
  0.234 (Depositor) 

Starting Model: experimental

Literature

Structures of human ABCC6 NBD1 and NBD2

Zheng, A., Thibodeau, P.H.

To be published.

Biological Assembly 1  

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

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

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 55.5 kDa 
• Atom Count: 3,714 
• Modelled Residue Count: 473 
• Deposited Residue Count: 502 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Multidrug resistance-associated protein 6	A [auth B], B [auth A]	251	Homo sapiens	Mutation(s): 0  Gene Names: ABCC6, ARA, MRP6 EC: 7.6.2.3 (UniProt), 7.6.2 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for O95255 (Homo sapiens) Explore O95255  Go to UniProtKB:  O95255
PHAROS:  O95255 GTEx:  ENSG00000091262

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ADP (Subject of Investigation/LOI)	C [auth B], E [auth A]	ADENOSINE-5'-DIPHOSPHATE C10 H15 N5 O10 P2 XTWYTFMLZFPYCI-KQYNXXCUSA-N
CIT	D [auth B], F [auth A]	CITRIC ACID C6 H8 O7 KRKNYBCHXYNGOX-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free:  0.264 (Depositor), 0.260 (DCC) 
• R-Value Work:  0.231 (Depositor), 0.230 (DCC) 
• R-Value Observed: 0.234 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 55.76	α = 90
b = 93.12	β = 112.497
c = 64.17	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2019-01-23 
Deposition Author(s): Zheng, A., Thibodeau, P.H.

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Funding Organization	Location	Grant 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 States	DK083284
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	GM122091

Revision History  

• Version 1.0: 2019-01-23
  Type: Initial release
  
• Version 1.1: 2019-12-18
  Changes: Author supporting evidence
• Version 1.2: 2023-10-04
  Changes: Data collection, Database references, Refinement description