7ZP9 | pdb_00007zp9

KtrAB complex - KtrA8 ring with a KtrB dimer on each side

• PDB DOI: https://doi.org/10.2210/pdb7ZP9/pdb
• EM Map EMD-14851: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Vibrio alginolyticus
• Expression System: Escherichia coli
• Mutation(s): No 
• Membrane Protein: Yes  OPMPDBTMMemProtMD


• Deposited: 2022-04-27 Released: 2023-05-10 
• Deposition Author(s): Vonck, J., Stautz, J.
• Funding Organization(s): German Research Foundation (DFG)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.82 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

KtrAB complex

Stautz, J.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Hetero 12-mer - A8B4 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 411.68 kDa 
• Atom Count: 22,339 
• Modeled Residue Count: 2,802 
• Deposited Residue Count: 3,580 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ktr system potassium uptake protein A	A [auth H], B [auth D], C [auth E], D [auth F], F [auth A], G [auth B], H [auth J], I [auth L]	220	Vibrio alginolyticus	Mutation(s): 0  Gene Names: ktrA Membrane Entity: Yes
UniProt
Find proteins for O87952 (Vibrio alginolyticus) Explore O87952  Go to UniProtKB:  O87952

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Ktr system potassium uptake protein B	E [auth I], J [auth M], K [auth C], L [auth G]	455	Vibrio alginolyticus	Mutation(s): 0  Gene Names: ktrB Membrane Entity: Yes
UniProt
Find proteins for O87953 (Vibrio alginolyticus) Explore O87953  Go to UniProtKB:  O87953

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
LMT	AA [auth I], AB [auth C], BA [auth I], BB [auth C], CA [auth I], CB [auth C], DA [auth I], DB [auth C], EA [auth I], EB [auth C], FB [auth C], GB [auth C], HA [auth A], IB [auth G], JB [auth G], KB [auth G], LB [auth G], MB [auth G], NB [auth G], OB [auth G], PA [auth M], PB [auth G], QA [auth M], RA [auth M], SA [auth M], TA [auth M], U [auth I], UA [auth M], VA [auth M], W [auth I], WA [auth C], X [auth I], Y [auth I], YA [auth C], Z [auth I], ZA [auth C]	DODECYL-BETA-D-MALTOSIDE C24 H46 O11 NLEBIOOXCVAHBD-QKMCSOCLSA-N
ADP	GA [auth A], IA [auth B], KA [auth J], MA [auth L], N [auth H], O [auth D], Q [auth E], S [auth F]	ADENOSINE-5'-DIPHOSPHATE C10 H15 N5 O10 P2 XTWYTFMLZFPYCI-KQYNXXCUSA-N
K	HB [auth G], OA [auth M], V [auth I], XA [auth C]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N
MG	FA [auth A], JA [auth B], LA [auth J], M [auth H], NA [auth L], P [auth D], R [auth E], T [auth F]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.82 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-05-10 
Deposition Author(s): Vonck, J., Stautz, J.

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Funding Organization	Location	Grant Number
German Research Foundation (DFG)	Germany	VO 1449_1-1
German Research Foundation (DFG)	Germany	HA 6322/4-1

Revision History  

• Version 1.0: 2023-05-10
  Type: Initial release
  
• Version 2.0: 2024-02-28
  Type: Coordinate replacement
  Reason: Model completeness
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Refinement description, Structure summary