4Q36

The crystal structure of acyltransferase in complex with octanoyl-CoA and teicoplanin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.187 

Starting Model: experimental
View more details

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Multiple complexes of long aliphatic N-acyltransferases lead to synthesis of 2,6-diacylated/2-acyl-substituted glycopeptide antibiotics, effectively killing vancomycin-resistant enterococcus

Lyu, S.Y.Liu, Y.C.Chang, C.Y.Huang, C.J.Chiu, Y.H.Huang, C.M.Hsu, N.S.Lin, K.H.Wu, C.J.Tsai, M.D.Li, T.L.

(2014) J Am Chem Soc 136: 10989-10995

  • DOI: https://doi.org/10.1021/ja504125v
  • Primary Citation of Related Structures:  
    4MFJ, 4MFK, 4MFL, 4MFP, 4MFQ, 4MFZ, 4Q36, 4Q38

  • PubMed Abstract: 

    Teicoplanin A2-2 (Tei)/A40926 is the last-line antibiotic to treat multidrug-resistant Gram-positive bacterial infections, e.g., methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococcus (VRE). This class of antibiotics is powered by the N-acyltransferase (NAT) Orf11*/Dbv8 through N-acylation on glucosamine at the central residue of Tei/A40926 pseudoaglycone. The NAT enzyme possesses enormous value in untapped applications; its advanced development is hampered largely due to a lack of structural information. In this report, we present eight high-resolution X-ray crystallographic unary, binary, and ternary complexes in order to decipher the molecular basis for NAT's functionality. The enzyme undergoes a multistage conformational change upon binding of acyl-CoA, thus allowing the uploading of Tei pseudoaglycone to enable the acyl-transfer reaction to take place in the occlusion between the N- and C-halves of the protein. The acyl moiety of acyl-CoA can be bulky or lengthy, allowing a large extent of diversity in new derivatives that can be formed upon its transfer. Vancomycin/synthetic acyl-N-acetyl cysteamine was not expected to be able to serve as a surrogate for an acyl acceptor/donor, respectively. Most strikingly, NAT can catalyze formation of 2-N,6-O-diacylated or C6→C2 acyl-substituted Tei analogues through an unusual 1,4-migration mechanism under stoichiometric/solvational reaction control, wherein selected representatives showed excellent biological activities, effectively counteracting major types (VanABC) of VRE.


  • Organizational Affiliation

    Genomics Research Center, Academia Sinica , Taipei 115, Taiwan.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Putative uncharacterized protein tcp24338Actinoplanes teichomyceticusMutation(s): 0 
Gene Names: tcp24
EC: 2.3.1
UniProt
Find proteins for Q70AY4 (Actinoplanes teichomyceticus)
Explore Q70AY4 
Go to UniProtKB:  Q70AY4
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ70AY4
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.187 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 133.298α = 90
b = 133.298β = 90
c = 49.112γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
PHASESphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-09-10
    Type: Initial release
  • Version 1.1: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Database references, Derived calculations, Structure summary
  • Version 1.2: 2023-11-08
    Changes: Data collection, Database references, Refinement description, Structure summary