2FXF

Human spermidine/spermine N1-acetyltransferase

• PDB DOI: https://doi.org/10.2210/pdb2FXF/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2006-02-05 Released: 2006-02-14 
• Deposition Author(s): Min, J.R., Wu, H., Zeng, H., Loppnau, P., Sundstrom, M., Arrowsmith, C.H., Edwards, A.M., Bochkarev, A., Plotnikov, A.N., Structural Genomics Consortium (SGC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.250 
• R-Value Work: 0.194 
• R-Value Observed: 0.196 

Starting Model: experimental

Literature

The Crystal Structure of Human spermidine/spermine N1-acetyltransferase

Min, J.R., Wu, H., Zeng, H., Loppnau, P., Sundstrom, M., Arrowsmith, C.H., Edwards, A.M., Bochkarev, A., Plotnikov, A.N.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 41.71 kDa 
• Atom Count: 3,056 
• Modelled Residue Count: 328 
• Deposited Residue Count: 340 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Diamine acetyltransferase 1	A, B	170	Homo sapiens	Mutation(s): 0  Gene Names: SAT EC: 2.3.1.57
UniProt & NIH Common Fund Data Resources
Find proteins for P21673 (Homo sapiens) Explore P21673  Go to UniProtKB:  P21673
PHAROS:  P21673 GTEx:  ENSG00000130066

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ACO	G [auth A], J [auth B]	ACETYL COENZYME *A C23 H38 N7 O17 P3 S ZSLZBFCDCINBPY-ZSJPKINUSA-N
ACT	F [auth A]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M
CA	C [auth A], D [auth A], E [auth A], H [auth B], I [auth B]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.250 
• R-Value Work: 0.194 
• R-Value Observed: 0.196 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 65.631	α = 90
b = 66.738	β = 94.41
c = 95.66	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
SCALEPACK	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-02-14 
Deposition Author(s): Min, J.R., Wu, H., Zeng, H., Loppnau, P., Sundstrom, M., Arrowsmith, C.H., Edwards, A.M., Bochkarev, A., Plotnikov, A.N., Structural Genomics Consortium (SGC)

Revision History  

• Version 1.0: 2006-02-14
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-10-18
  Changes: Refinement description
• Version 1.4: 2023-08-30
  Changes: Data collection, Database references, Derived calculations, Refinement description