6AT8

1.1 Angstrom Resolution Structure of Human Cellular Retinol-Binding Protein IV

• PDB DOI: https://doi.org/10.2210/pdb6AT8/pdb

• Classification: LIPID BINDING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2017-08-28 Released: 2017-09-06 
• Deposition Author(s): Silvaroli, J.A., Pleshinger, M.J., Kiser, P.D., Golczak, M.
• Funding Organization(s): National Institutes of Health/National Eye Institute (NIH/NEI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.10 Å
• R-Value Free: 0.149 
• R-Value Work: 0.126 
• R-Value Observed: 0.127 

Starting Model: experimental

Literature

1.1 Angstrom Resolution Structure of Human Cellular Retinol-Binding Protein IV

Silvaroli, J.A., Pleshinger, M.J., Kiser, P.D., Golczak, M.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 16.09 kDa 
• Atom Count: 1,434 
• Modelled Residue Count: 133 
• Deposited Residue Count: 137 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Retinoid-binding protein 7	A	137	Homo sapiens	Mutation(s): 0  Gene Names: RBP7
UniProt & NIH Common Fund Data Resources
Find proteins for Q96R05 (Homo sapiens) Explore Q96R05  Go to UniProtKB:  Q96R05
PHAROS:  Q96R05 GTEx:  ENSG00000162444

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PEG	B [auth A]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N
GOL	C [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.10 Å
• R-Value Free: 0.149 
• R-Value Work: 0.126 
• R-Value Observed: 0.127 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 34.82	α = 90
b = 57.334	β = 103.09
c = 68.115	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2017-09-06 
Deposition Author(s): Silvaroli, J.A., Pleshinger, M.J., Kiser, P.D., Golczak, M.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Eye Institute (NIH/NEI)	United States	EY023948

Revision History  

• Version 1.0: 2017-09-06
  Type: Initial release
  
• Version 2.0: 2019-12-11
  Changes: Atomic model, Author supporting evidence
• Version 2.1: 2023-10-04
  Changes: Data collection, Database references, Refinement description