8C6G

CRYSTAL STRUCTURE OF ODORANT BINDING PROTEIN 4 FROM ANOPHELES GAMBIAE (AGAMOBP4) AT PH 6.5

• PDB DOI: https://doi.org/10.2210/pdb8C6G/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Anopheles gambiae
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2023-01-11 Released: 2023-07-05 
• Deposition Author(s): Tsitsanou, K.E., Drakou, C.E., Zographos, S.E.
• Funding Organization(s): Other government

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.229 
• R-Value Work: 0.193 
• R-Value Observed: 0.195 

Literature

Influence of pH on indole-dependent heterodimeric interactions between Anopheles gambiae odorant-binding proteins OBP1 and OBP4.

Mam, B., Tsitsanou, K.E., Liggri, P.G.V., Saitta, F., Stamati, E.C.V., Mahita, J., Leonis, G., Drakou, C.E., Papadopoulos, M., Arnaud, P., Offmann, B., Fessas, D., Sowdhamini, R., Zographos, S.E.

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

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 28.28 kDa 
• Atom Count: 2,066 
• Modelled Residue Count: 249 
• Deposited Residue Count: 250 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
AGAP010489-PA	A, B	125	Anopheles gambiae	Mutation(s): 0  Gene Names: OBP-4, 1275228, AgamOBP4, OBP4, AgaP_AGAP010489, agCG48601
UniProt
Find proteins for Q8T6R7 (Anopheles gambiae) Explore Q8T6R7  Go to UniProtKB:  Q8T6R7

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	G [auth B]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
NA	C [auth A], D [auth A], E [auth A], F [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.229 
• R-Value Work: 0.193 
• R-Value Observed: 0.195 
• Space Group: I 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 60.355	α = 90
b = 57.03	β = 100.21
c = 67.34	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
MOSFLM	data reduction
MOLREP	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-07-05 
Deposition Author(s): Tsitsanou, K.E., Drakou, C.E., Zographos, S.E.

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Funding Organization	Location	Grant Number
Other government	Greece	T1EDK-00996
Other government	Greece	MIS5000432

Revision History  

• Version 1.0: 2023-07-05
  Type: Initial release
  
• Version 1.1: 2024-02-07
  Changes: Data collection