5CE8

Crystal structure of branched-chain aminotransferase from thermophilic archaea Thermoproteus uzoniensis


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.168 
  • R-Value Work: 0.120 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

First structure of archaeal branched-chain amino acid aminotransferase from Thermoproteus uzoniensis specific for L-amino acids and R-amines.

Boyko, K.M.Stekhanova, T.N.Nikolaeva, A.Y.Mardanov, A.V.Rakitin, A.L.Ravin, N.V.Bezsudnova, E.Y.Popov, V.O.

(2016) Extremophiles 20: 215-225

  • DOI: 10.1007/s00792-016-0816-z

  • PubMed Abstract: 
  • The gene TUZN1299 from the genome of the hyperthermophilic archaeon Thermoproteus uzoniensis encoding a new 32.8 kDa branched-chain amino acid aminotransferase (BCAT) was expressed in Escherichia coli. The recombinant protein TUZN1299 was purified to ...

    The gene TUZN1299 from the genome of the hyperthermophilic archaeon Thermoproteus uzoniensis encoding a new 32.8 kDa branched-chain amino acid aminotransferase (BCAT) was expressed in Escherichia coli. The recombinant protein TUZN1299 was purified to homogeneity in the PLP-bound form. TUZN1299 was active towards branched-chain amino acids (L-Val, L-Leu, L-Ile) and showed low but detectable activity toward (R)-alpha-methylbenzylamine. The enzyme exhibits high-temperature optimum, thermal stability, and tolerance to organic solvents. The structure of an archaeal BCAT called TUZN1299 was solved for the first time (at 2.0 Å resolution). TUZN1299 has a typical BCAT type IV fold, and the organization of its active site is similar to that of bacterial BCATs. However, there are some differences in the amino acid composition of the active site.


    Organizational Affiliation

    Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Ave. 33, bld. 2, Moscow, 119071, Russian Federation.,A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Ave. 33, bld. 2, Moscow, 119071, Russian Federation. kmb@inbi.ras.ru.,A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Ave. 33, bld. 2, Moscow, 119071, Russian Federation.,NBICS Centre, National Research Centre "Kurchatov Institute", Akad. Kurchatova Sqr, 1, Moscow, 123182, Russian Federation. kmb@inbi.ras.ru.,NBICS Centre, National Research Centre "Kurchatov Institute", Akad. Kurchatova Sqr, 1, Moscow, 123182, Russian Federation.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Branched-chain amino acid aminotransferase
A, B, C
307Thermoproteus uzoniensis (strain 768-20)Mutation(s): 0 
Gene Names: ilvE
EC: 2.6.1.42
Find proteins for F2L0W0 (Thermoproteus uzoniensis (strain 768-20))
Go to UniProtKB:  F2L0W0
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PEG
Query on PEG

Download SDF File 
Download CCD File 
C
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
PLP
Query on PLP

Download SDF File 
Download CCD File 
A, B, C
PYRIDOXAL-5'-PHOSPHATE
VITAMIN B6 Phosphate
C8 H10 N O6 P
NGVDGCNFYWLIFO-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.168 
  • R-Value Work: 0.120 
  • Space Group: P 32 1 2
Unit Cell:
Length (Å)Angle (°)
a = 93.540α = 90.00
b = 93.540β = 90.00
c = 212.510γ = 120.00
Software Package:
Software NamePurpose
XSCALEdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Russian Scientific FundRussian Federation14-24-00172
7th EU Frame Programme (ERA-IB)EIB.12.012

Revision History 

  • Version 1.0: 2016-02-24
    Type: Initial release
  • Version 1.1: 2016-03-09
    Type: Database references