Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 

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

Biological Assembly 2  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 

Biological assembly 2 generated by PISA (software)

Biological Assembly 3  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 

Biological assembly 3 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 191.57 kDa 
• Atom Count: 12344 
• Modelled Residue Count: 1507 
• Deposited Residue Count: 1659 
• Unique protein chains: 3

4AY9

Structure of follicle-stimulating hormone in complex with the entire ectodomain of its receptor

• PDB DOI: 10.2210/pdb4AY9/pdb

• Classification: HORMONE/RECEPTOR
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2012-06-19 Released: 2012-08-08 
• Deposition Author(s): Jiang, X., Liu, H., Chen, X., He, X.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.269 
• R-Value Work: 0.235 
• R-Value Observed: 0.237 

Literature

Structure of Follicle-Stimulating Hormone in Complex with the Entire Ectodomain of its Receptor.

Jiang, X., Liu, H., Chen, X., Chen, P., Fischer, D., Sriraman, V., Yu, H.N., Arkinstall, S., He, X.

(2012) Proc Natl Acad Sci U S A 109: 12491

• PubMed: 22802634 
• DOI: 10.1073/pnas.1206643109
• Primary Citation of Related Structures:  
  4AY9


• PubMed Abstract: 
  

FSH, a glycoprotein hormone, and the FSH receptor (FSHR), a G protein-coupled receptor, play central roles in human reproduction. We report the crystal structure of FSH in complex with the entire extracellular domain of FSHR (FSHR(ED)), including the enigmatic hinge region that is responsible for signal specificity. Surprisingly, the hinge region does not form a separate structural unit as widely anticipated but is part of the integral structure of FSHR(ED). In addition to the known hormone-binding site, FSHR(ED) provides interaction sites with the hormone: a sulfotyrosine (sTyr) site in the hinge region consistent with previous studies and a potential exosite resulting from putative receptor trimerization. Our structure, in comparison to others, suggests FSHR interacts with its ligand in two steps: ligand recruitment followed by sTyr recognition. FSH first binds to the high-affinity hormone-binding subdomain of FSHR and reshapes the ligand conformation to form a sTyr-binding pocket. FSHR then inserts its sTyr (i.e., sulfated Tyr335) into the FSH nascent pocket, eventually leading to receptor activation.

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Organizational Affiliation: 

EMD Serono Research Institute, Billerica, MA 01821, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GLYCOPROTEIN HORMONES, ALPHA POLYPEPTIDE	A, C [auth D], E [auth G]	92	Homo sapiens	Mutation(s): 0  Gene Names: CGA
UniProt & NIH Common Fund Data Resources
Find proteins for P01215 (Homo sapiens) Explore P01215  Go to UniProtKB:  P01215
PHAROS:  P01215

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
FOLLITROPIN SUBUNIT BETA	B, D [auth E], F [auth H]	111	Homo sapiens	Mutation(s): 0  Gene Names: FSHB
UniProt & NIH Common Fund Data Resources
Find proteins for P01225 (Homo sapiens) Explore P01225  Go to UniProtKB:  P01225
PHAROS:  P01225

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
FOLLICLE-STIMULATING HORMONE RECEPTOR	G [auth X], H [auth Y], I [auth Z]	350	Homo sapiens	Mutation(s): 0  Gene Names: FSHR, LGR1
UniProt & NIH Common Fund Data Resources
Find proteins for P23945 (Homo sapiens) Explore P23945  Go to UniProtKB:  P23945
PHAROS:  P23945

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	J [auth A], K [auth A], L [auth B], M [auth B], N [auth D], O [auth D], P [auth E], Q [auth E], R [auth G], S [auth G], T [auth H], U [auth H], V [auth X], W [auth Y], X [auth Z]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
TYS	G [auth X], H [auth Y], I [auth Z]	L-PEPTIDE LINKING	C9 H11 N O6 S		TYR

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.269 
• R-Value Work: 0.235 
• R-Value Observed: 0.237 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 70.716	α = 60.3
b = 95.478	β = 80.02
c = 95.675	γ = 75.35

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-3000	data reduction
XSCALE	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2012-06-19 
• Released Date: 2012-08-08 
Deposition Author(s): Jiang, X., Liu, H., Chen, X., He, X.

Revision History  

• Version 1.0: 2012-08-08
  Type: Initial release
  
• Version 1.1: 2012-08-15
  Changes: Database references
• Version 1.2: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Derived calculations, Other, Structure summary