4C49

Reactive loop cleaved human CBG in complex with cortisol

• PDB DOI: https://doi.org/10.2210/pdb4C49/pdb

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


• Deposited: 2013-09-02 Released: 2014-10-01 
• Deposition Author(s): Chan, W.L., Zhou, A., Read, R.J.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.268 
• R-Value Work: 0.221 
• R-Value Observed: 0.223 

Literature

Role of Sa-Hd Loop Movement in Cortisol Release Mechanism of Cbg

Chan, W.L., Zhou, A., Read, R.J.

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)

Biological Assembly 3  

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

Biological assembly 3 assigned by authors and generated by PISA (software)

Biological Assembly 4  

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

Biological assembly 4 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 167.95 kDa 
• Atom Count: 11,432 
• Modelled Residue Count: 1,448 
• Deposited Residue Count: 1,492 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CORTICOSTEROID-BINDING GLOBULIN	A, B, C, D	373	Homo sapiens	Mutation(s): 1
UniProt & NIH Common Fund Data Resources
Find proteins for P08185 (Homo sapiens) Explore P08185  Go to UniProtKB:  P08185
PHAROS:  P08185 GTEx:  ENSG00000170099

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HCY	E [auth A], F [auth B], G [auth C], H [auth D]	(11alpha,14beta)-11,17,21-trihydroxypregn-4-ene-3,20-dione C21 H30 O5 JYGXADMDTFJGBT-VWUMJDOOSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
HCY	BindingDB:  4C49	Ki: 13 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.268 
• R-Value Work: 0.221 
• R-Value Observed: 0.223 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 72.82	α = 90
b = 110.42	β = 102.52
c = 92.54	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
MOSFLM	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-10-01 
Deposition Author(s): Chan, W.L., Zhou, A., Read, R.J.

Revision History  

• Version 1.0: 2014-10-01
  Type: Initial release
  
• Version 2.0: 2023-12-20
  Changes: Atomic model, Data collection, Database references, Derived calculations, Other, Refinement description