2O7D

Tyrosine ammonia-lyase from Rhodobacter sphaeroides, complexed with caffeate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.175 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural determinants and modulation of substrate specificity in phenylalanine-tyrosine ammonia-lyases.

Louie, G.V.Bowman, M.E.Moffitt, M.C.Baiga, T.J.Moore, B.S.Noel, J.P.

(2006) Chem.Biol. 13: 1327-1338

  • DOI: 10.1016/j.chembiol.2006.11.011
  • Primary Citation of Related Structures:  2O6Y, 2O78, 2O7B, 2O7E, 2O7F

  • PubMed Abstract: 
  • Aromatic amino acid ammonia-lyases catalyze the deamination of L-His, L-Phe, and L-Tyr, yielding ammonia plus aryl acids bearing an alpha,beta-unsaturated propenoic acid. We report crystallographic analyses of unliganded Rhodobacter sphaeroides tyros ...

    Aromatic amino acid ammonia-lyases catalyze the deamination of L-His, L-Phe, and L-Tyr, yielding ammonia plus aryl acids bearing an alpha,beta-unsaturated propenoic acid. We report crystallographic analyses of unliganded Rhodobacter sphaeroides tyrosine ammonia-lyase (RsTAL) and RsTAL bound to p-coumarate and caffeate. His 89 of RsTAL forms a hydrogen bond with the p-hydroxyl moieties of coumarate and caffeate. His 89 is conserved in TALs but replaced in phenylalanine ammonia-lyases (PALs) and histidine ammonia-lyases (HALs). Substitution of His 89 by Phe, a characteristic residue of PALs, yields a mutant with a switch in kinetic preference from L-Tyr to L-Phe. Structures of the H89F mutant in complex with the PAL product, cinnamate, or the PAL-specific inhibitor, 2-aminoindan-2-phosphonate (AIP), support the role of position 89 as a specificity determinant in the family of aromatic amino acid ammonia-lyases and aminomutases responsible for beta-amino acid biosynthesis.


    Organizational Affiliation

    Howard Hughes Medical Institute, Jack H. Skirball Center for Chemical Biology and Proteomics, The Salk Institute for Biological Studies, La Jolla, California 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Putative histidine ammonia-lyase
A, B, C, D, E, F, G, H
523Rhodobacter sphaeroides (strain ATCC 17023 / 2.4.1 / NCIB 8253 / DSM 158)Gene Names: hutH
EC: 4.3.1.23
Find proteins for Q3IWB0 (Rhodobacter sphaeroides (strain ATCC 17023 / 2.4.1 / NCIB 8253 / DSM 158))
Go to UniProtKB:  Q3IWB0
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DHC
Query on DHC

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H
CAFFEIC ACID
3,4-DIHYDROXYCINNAMIC ACID
C9 H8 O4
QAIPRVGONGVQAS-DUXPYHPUSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MDO
Query on MDO
A, B, C, D, E, F, G, H
L-PEPTIDE LINKINGC8 H11 N3 O3ALA, SER, GLY
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.175 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 87.614α = 90.00
b = 154.895β = 94.06
c = 164.162γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
CCP4data scaling
CNSrefinement
Blu-Icedata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-01-16
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance