9CV6

Cryo-EM structure of the Carboxyltransferase Domain of Trichoplusia ni Acetyl-Coenzyme A Carboxylase


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.12 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structure of the endogenous insect acetyl-coA carboxylase carboxyltransferase domain.

Wang, D.Bu, F.Yang, G.Brenke, H.Liu, B.

(2024) J Biol Chem : 107800-107800

  • DOI: https://doi.org/10.1016/j.jbc.2024.107800
  • Primary Citation of Related Structures:  
    9CV6

  • PubMed Abstract: 

    Acetyl-coenzyme A carboxylases (ACCs) are pivotal in fatty acid metabolism, converting acetyl-CoA to malonyl-CoA. While ACCs in humans, plants, and microbes have been extensively studied, insect ACCs, crucial for lipid biosynthesis and physiological processes, remain relatively unexplored. Unlike mammals, which have ACC1 and ACC2 in different tissues, insects possess a single ACC gene, underscoring its unique role in their metabolism. Noctuid moths, such as Trichoplusia ni, are major agricultural pests causing significant crop damage and economic loss. Their resistance to both biological and synthetic insecticides complicates pest control. Recent research has introduced cyclic ketoenols as novel insecticides targeting ACCs, yet structural information to guide their design is limited. Here, we present a 3.12 Å cryo-EM structure of the carboxyltransferase (CT) domain of T. ni ACC, offering the first detailed structural insights into insect ACCs. Our structural comparisons with ACC CT domains from other species and analyses of drug binding sites can guide future drug modification and design. Notably, unique interactions between the CT and the central domain in T. ni ACC provide new directions for studying the ACC holoenzyme. These findings contribute valuable information for pest control and basic biological understanding of lipid biosynthesis.


  • Organizational Affiliation

    The Hormel Institute, University of Minnesota, Austin, MN, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Acetyl-CoA carboxylase
A, B
779Trichoplusia niMutation(s): 0 
UniProt
Find proteins for A0A7E5W2X9 (Trichoplusia ni)
Explore A0A7E5W2X9 
Go to UniProtKB:  A0A7E5W2X9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A7E5W2X9
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.12 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX1.21_5207:

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Not funded--

Revision History  (Full details and data files)

  • Version 1.0: 2024-09-25
    Type: Initial release
  • Version 1.1: 2024-10-02
    Changes: Data collection, Database references