4Z51

High Resolution Human Septin 3 GTPase domain

• PDB DOI: https://doi.org/10.2210/pdb4Z51/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2015-04-02 Released: 2016-04-06 
• Deposition Author(s): Valadares, N.F., Macedo, J.N., Leonardo, D.A., Brandao-Neto, J., Pereira, H.M., Matos, S.O., Araujo, A.P.U., Garratt, R.C.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.86 Å
• R-Value Free: 0.216 
• R-Value Work: 0.182 
• R-Value Observed: 0.184 

Starting Model: experimental

Literature

A complete compendium of crystal structures for the human SEPT3 subgroup reveals functional plasticity at a specific septin interface

Castro, D.K.S.V., da Silva, S.M.O., Pereira, H.M., Macedo, J.N.A., Leonardo, D.A., Valadares, N.F., Kumagai, P.S., Brandao-Neto, J., Araujo, A.P.U., Garratt, R.C.

(2020) IUCrJ 

• DOI: https://doi.org/10.1107/S2052252520002973

Biological Assembly 1  

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

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 32.17 kDa 
• Atom Count: 2,189 
• Modelled Residue Count: 253 
• Deposited Residue Count: 271 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Neuronal-specific septin-3	A	271	Homo sapiens	Mutation(s): 0  Gene Names: SEPT3, SEP3
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UH03 (Homo sapiens) Explore Q9UH03  Go to UniProtKB:  Q9UH03
PHAROS:  Q9UH03 GTEx:  ENSG00000100167

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GNP	B [auth A]	PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER C10 H17 N6 O13 P3 UQABYHGXWYXDTK-UUOKFMHZSA-N
MG	C [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.86 Å
• R-Value Free: 0.216 
• R-Value Work: 0.182 
• R-Value Observed: 0.184 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 51.28	α = 90
b = 74.27	β = 108.5
c = 79.21	γ = 90

Software Package:

Software Name	Purpose
xia2	data scaling
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2016-04-06 
Deposition Author(s): Valadares, N.F., Macedo, J.N., Leonardo, D.A., Brandao-Neto, J., Pereira, H.M., Matos, S.O., Araujo, A.P.U., Garratt, R.C.

Revision History  

• Version 1.0: 2016-04-06
  Type: Initial release
  
• Version 1.1: 2017-11-01
  Changes: Author supporting evidence, Data collection, Derived calculations
• Version 1.2: 2020-04-22
  Changes: Database references
• Version 1.3: 2020-05-13
  Changes: Database references
• Version 1.4: 2023-09-27
  Changes: Data collection, Database references, Derived calculations, Refinement description