5TF5

CRYSTAL STRUCTURE OF HUMAN KAT-2 IN COMPLEX WITH A REVERSIBLE INHIBITOR

• PDB DOI: https://doi.org/10.2210/pdb5TF5/pdb

• Classification: transferase/transferase inhibitor
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2016-09-24 Released: 2016-10-05 
• Deposition Author(s): Nematollahi, A., Sun, G., Church, W.B.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.81 Å
• R-Value Free: 0.245 
• R-Value Work: 0.219 
• R-Value Observed: 0.220 

Starting Model: experimental

Literature

Crystal structure and mechanistic analysis of a novel human kynurenine aminotransferase-2 reversible inhibitor

Nematollahi, A., Sun, G., Jayawickrama, G., Hanrahan, J.R., Church, W.B.

(2017) Med Chem Res 

• DOI: https://doi.org/10.1007/s00044-017-1950-6

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)

Macromolecule Content

• Total Structure Weight: 95.62 kDa 
• Atom Count: 7,400 
• Modelled Residue Count: 850 
• Deposited Residue Count: 850 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Kynurenine/alpha-aminoadipate aminotransferase, mitochondrial	A, B	425	Homo sapiens	Mutation(s): 0  Gene Names: AADAT, KAT2 EC: 2.6.1.39 (PDB Primary Data), 2.6.1.7 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for Q8N5Z0 (Homo sapiens) Explore Q8N5Z0  Go to UniProtKB:  Q8N5Z0
GTEx:  ENSG00000109576

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
7AR	C [auth B]	(2R)-2-(5,6-dichloro-1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-3-phenylpropanoic acid C17 H11 Cl2 N O4 MYKVEESSMOYIFU-CQSZACIVSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
LLP	A, B	L-PEPTIDE LINKING	C14 H22 N3 O7 P		LYS

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.81 Å
• R-Value Free: 0.245 
• R-Value Work: 0.219 
• R-Value Observed: 0.220 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 88.883	α = 90
b = 99.275	β = 90
c = 107.923	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Blu-Ice	data collection
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2016-10-05 
Deposition Author(s): Nematollahi, A., Sun, G., Church, W.B.

Revision History  

• Version 1.0: 2016-10-05
  Type: Initial release
  
• Version 1.1: 2017-07-12
  Changes: Data collection, Database references, Derived calculations
• Version 1.2: 2023-10-04
  Changes: Data collection, Database references, Refinement description
• Version 1.3: 2023-11-15
  Changes: Data collection