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- PDB-7liw: Local refinement of human ATP citrate lyase E599Q mutant ASH domain -

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Entry
Database: PDB / ID: 7liw
TitleLocal refinement of human ATP citrate lyase E599Q mutant ASH domain
ComponentsATP-citrate synthase
KeywordsLYASE
Function / homology
Function and homology information


ATP citrate synthase / ATP citrate synthase activity / citrate metabolic process / Fatty acyl-CoA biosynthesis / acetyl-CoA biosynthetic process / ChREBP activates metabolic gene expression / coenzyme A metabolic process / oxaloacetate metabolic process / lipid biosynthetic process / cholesterol biosynthetic process ...ATP citrate synthase / ATP citrate synthase activity / citrate metabolic process / Fatty acyl-CoA biosynthesis / acetyl-CoA biosynthetic process / ChREBP activates metabolic gene expression / coenzyme A metabolic process / oxaloacetate metabolic process / lipid biosynthetic process / cholesterol biosynthetic process / fatty acid biosynthetic process / azurophil granule lumen / ficolin-1-rich granule lumen / Neutrophil degranulation / extracellular exosome / extracellular region / nucleoplasm / ATP binding / membrane / metal ion binding / cytosol
Similarity search - Function
ATP-citrate synthase / ATP-citrate synthase, citrate-binding domain / ATP citrate lyase citrate-binding / Succinyl-CoA synthetase domains / ATP-citrate lyase/succinyl-CoA ligase, active site / ATP-citrate lyase/succinyl-CoA ligase, conserved site / ATP-citrate lyase / succinyl-CoA ligases family active site. / ATP-citrate lyase / succinyl-CoA ligases family signature 1. / Succinyl-CoA synthetase, beta subunit, conserved site / ATP-citrate lyase / succinyl-CoA ligases family signature 3. ...ATP-citrate synthase / ATP-citrate synthase, citrate-binding domain / ATP citrate lyase citrate-binding / Succinyl-CoA synthetase domains / ATP-citrate lyase/succinyl-CoA ligase, active site / ATP-citrate lyase/succinyl-CoA ligase, conserved site / ATP-citrate lyase / succinyl-CoA ligases family active site. / ATP-citrate lyase / succinyl-CoA ligases family signature 1. / Succinyl-CoA synthetase, beta subunit, conserved site / ATP-citrate lyase / succinyl-CoA ligases family signature 3. / ATP-citrate lyase/succinyl-CoA ligase / CoA-ligase / CoA binding domain / Succinyl-CoA synthetase-like / CoA binding domain / CoA-binding / Citrate synthase / Citrate synthase-like, small alpha subdomain / Citrate synthase superfamily / Citrate synthase, C-terminal domain / NAD(P)-binding domain superfamily / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / COENZYME A / Chem-Y2A / ATP-citrate synthase
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.85 Å
AuthorsWei, X. / Marmorstein, R.
Citation
Journal: Nat Struct Mol Biol / Year: 2021
Title: Reply to: Acetyl-CoA is produced by the citrate synthase homology module of ATP-citrate lyase.
Authors: Xuepeng Wei / Ronen Marmorstein /
#1: Journal: Nat Struct Mol Biol / Year: 2020
Title: Molecular basis for acetyl-CoA production by ATP-citrate lyase.
Authors: Xuepeng Wei / Kollin Schultz / Gleb A Bazilevsky / Austin Vogt / Ronen Marmorstein /
Abstract: ATP-citrate lyase (ACLY) synthesizes cytosolic acetyl coenzyme A (acetyl-CoA), a fundamental cellular building block. Accordingly, aberrant ACLY activity is observed in many diseases. Here we report ...ATP-citrate lyase (ACLY) synthesizes cytosolic acetyl coenzyme A (acetyl-CoA), a fundamental cellular building block. Accordingly, aberrant ACLY activity is observed in many diseases. Here we report cryo-EM structures of human ACLY, alone or bound to substrates or products. ACLY forms a homotetramer with a rigid citrate synthase homology (CSH) module, flanked by four flexible acetyl-CoA synthetase homology (ASH) domains; CoA is bound at the CSH-ASH interface in mutually exclusive productive or unproductive conformations. The structure of a catalytic mutant of ACLY in the presence of ATP, citrate and CoA substrates reveals a phospho-citryl-CoA intermediate in the ASH domain. ACLY with acetyl-CoA and oxaloacetate products shows the products bound in the ASH domain, with an additional oxaloacetate in the CSH domain, which could function in ACLY autoinhibition. These structures, which are supported by biochemical and biophysical data, challenge previous proposals of the ACLY catalytic mechanism and suggest additional therapeutic possibilities for ACLY-associated metabolic disorders.
History
DepositionJan 28, 2021Deposition site: RCSB / Processing site: RCSB
Revision 1.0May 19, 2021Provider: repository / Type: Initial release
Revision 1.1Jul 28, 2021Group: Database references / Category: citation / citation_author
Revision 1.2Aug 25, 2021Group: Database references / Category: citation / database_2
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_PubMed / _citation.title / _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 1.3May 29, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Assembly

Deposited unit
A: ATP-citrate synthase
B: ATP-citrate synthase
C: ATP-citrate synthase
D: ATP-citrate synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)485,3997
Polymers483,9334
Non-polymers1,4673
Water00
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area30930 Å2
ΔGint-191 kcal/mol
Surface area65780 Å2

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Components

#1: Protein
ATP-citrate synthase / ATP-citrate (pro-S-)-lyase / ACL / Citrate cleavage enzyme


Mass: 120983.141 Da / Num. of mol.: 4 / Mutation: E599Q
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: ACLY / Production host: Escherichia coli (E. coli) / References: UniProt: P53396, ATP citrate synthase
#2: Chemical ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE


Mass: 427.201 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H15N5O10P2 / Comment: ADP, energy-carrying molecule*YM
#3: Chemical ChemComp-COA / COENZYME A


Mass: 767.534 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C21H36N7O16P3S
#4: Chemical ChemComp-Y2A / (2S)-2-hydroxy-2-[2-oxo-2-(phosphonooxy)ethyl]butanedioic acid


Mass: 272.103 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C6H9O10P / Feature type: SUBJECT OF INVESTIGATION
Has ligand of interestY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: ACLY(E599Q) with Mg2+, citrate, ATP and CoA / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
Buffer solutionpH: 7.5
Buffer component
IDConc.NameFormulaBuffer-ID
1200 mMsodium chlorideNacl1
225 mMTris HydrochlorideTris-Hcl1
35 mMmagnesiumMg1
45 mMcitratecitrate1
55 mMcoenzyme ACoA1
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Cs: 2.7 mm
Specimen holderCryogen: NITROGEN
Image recordingElectron dose: 40 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.18.2_3874: / Classification: refinement
EM software
IDNameVersionCategory
2SerialEMimage acquisition
4Gctf1.06CTF correction
11RELION3final Euler assignment
12RELIONclassification
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.85 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 800000 / Symmetry type: POINT
Atomic model buildingProtocol: OTHER
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00914915
ELECTRON MICROSCOPYf_angle_d0.98120172
ELECTRON MICROSCOPYf_dihedral_angle_d21.692043
ELECTRON MICROSCOPYf_chiral_restr0.0622232
ELECTRON MICROSCOPYf_plane_restr0.0072572

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