1S1S

Crystal Structure of ZipA in complex with indoloquinolizin 10b

• PDB DOI: https://doi.org/10.2210/pdb1S1S/pdb

• Classification: CELL CYCLE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2004-01-07 Released: 2005-01-18 
• Deposition Author(s): Jennings, L.D., Foreman, K.W., Rush III, T.S., Tsao, D.H., Mosyak, L., Li, Y., Sukhdeo, M.N., Ding, W., Dushin, E.G., Kenny, C.H., Moghazeh, S.L., Petersen, P.J., Ruzin, A.V., Tuckman, M., Sutherland, A.G.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.280 
• R-Value Work: 0.226 
• R-Value Observed: 0.226 

Literature

Design and synthesis of indolo[2,3-a]quinolizin-7-one inhibitors of the ZipA-FtsZ interaction

JENNINGS, L.D., FOREMAN, K.W., RUSH III, T.S., TSAO, D.H., MOSYAK, L., LI, Y., SUKHDEO, M.N., DING, W., DUSHIN, E.G., KENNY, C.H., MOGHAZEH, S.L., PETERSEN, P.J., RUZIN, A.V., TUCKMAN, M., SUTHERLAND, A.G.

(2004) Bioorg Med Chem Lett 14: 1427-1431

• PubMed: 15006376 
• DOI: https://doi.org/10.1016/j.bmcl.2004.01.028
• Primary Citation of Related Structures:  
  1S1J, 1S1S


• PubMed Abstract: 
  

  The binding of FtsZ to ZipA is a potential target for antibacterial therapy. Based on a small molecule inhibitor of the ZipA-FtsZ interaction, a parallel synthesis of small molecules was initiated which targeted a key region of ZipA involved in FtsZ binding. The X-ray crystal structure of one of these molecules complexed with ZipA was solved. The structure revealed an unexpected binding mode, facilitated by desolvation of a loosely bound surface water.

---

Organizational Affiliation: 

Wyeth Research, Department of Medicinal Chemistry, 401N. Middletown Rd, Pearl River, NY 10965, USA. [e-mail]

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 32.67 kDa 
• Atom Count: 2,429 
• Modelled Residue Count: 276 
• Deposited Residue Count: 288 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cell division protein zipA	A, B	144	Escherichia coli	Mutation(s): 0  Gene Names: ZIPA, B2412
UniProt
Find proteins for P77173 (Escherichia coli (strain K12)) Explore P77173  Go to UniProtKB:  P77173

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
WAC	C [auth B]	N-{3-[(12bS)-7-oxo-1,3,4,6,7,12b-hexahydroindolo[2,3-a]quinolizin-12(2H)-yl]propyl}propane-2-sulfonamide C21 H29 N3 O3 S LICJTIDRHJECTD-SFHVURJKSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.280 
• R-Value Work: 0.226 
• R-Value Observed: 0.226 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.446	α = 90
b = 38.847	β = 106.28
c = 71.515	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-01-18 
Deposition Author(s): Jennings, L.D., Foreman, K.W., Rush III, T.S., Tsao, D.H., Mosyak, L., Li, Y., Sukhdeo, M.N., Ding, W., Dushin, E.G., Kenny, C.H., Moghazeh, S.L., Petersen, P.J., Ruzin, A.V., Tuckman, M., Sutherland, A.G.

Revision History  

• Version 1.0: 2005-01-18
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-14
  Changes: Data collection, Database references, Derived calculations