9SZS | pdb_00009szs

Basic membrane protein D in complex with adenosine

• PDB DOI: https://doi.org/10.2210/pdb9SZS/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Borreliella burgdorferi
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2025-10-15 Released: 2026-10-28 
• Deposition Author(s): Airenne, T.T., Guedez, G., Salminen, T.A.
• Funding Organization(s): Academy of Finland, Sigrid Juselius Foundation

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Free: 
  0.182 (Depositor), 0.179 (DCC) 
• R-Value Work: 
  0.140 (Depositor), 0.138 (DCC) 

Starting Model: experimental

Literature

Basic membrane protein D in complex with adenosine

Airenne, T.T., Guedez, G., Salminen, T.A.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: homology

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 78.91 kDa 
• Atom Count: 5,896 
• Modeled Residue Count: 626 
• Deposited Residue Count: 720 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Basic membrane protein D	A, B	360	Borreliella burgdorferi	Mutation(s): 0  Gene Names: bmpD, BB_0385
UniProt
Find proteins for P0CL55 (Borreliella burgdorferi (strain ATCC 35210 / DSM 4680 / CIP 102532 / B31)) Explore P0CL55  Go to UniProtKB:  P0CL55

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ADN (Subject of Investigation/LOI)	C [auth A], E [auth B]	ADENOSINE C10 H13 N5 O4 OIRDTQYFTABQOQ-KQYNXXCUSA-N
CL	D [auth A], F [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Free:  0.182 (Depositor), 0.179 (DCC) 
• R-Value Work:  0.140 (Depositor), 0.138 (DCC) 

Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 43.23	α = 81.14
b = 57.68	β = 71.429
c = 67.606	γ = 77.108

Software Package:

Software Name	Purpose
XDS	data reduction
XSCALE	data scaling
Aimless	data scaling
PHASER	phasing
REFMAC	refinement

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-10-28 
Deposition Author(s): Airenne, T.T., Guedez, G., Salminen, T.A.

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Funding Organization	Location	Grant Number
Academy of Finland	Finland	337531, 359346, 359346
Sigrid Juselius Foundation	Finland	--

Revision History  

• Version 1.0: 2026-10-28
  Type: Initial release