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- EMDB-23387: Local refinement of human ATP citrate lyase E599Q mutant ASH domain -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-23387 | |||||||||
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Title | Local refinement of human ATP citrate lyase E599Q mutant ASH domain | |||||||||
![]() | ATP citrate lyase E599Q mutant ASH domain | |||||||||
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![]() | LYASE | |||||||||
Function / homology | ![]() ATP citrate synthase activity / ATP citrate synthase / Fatty acyl-CoA biosynthesis / citrate metabolic process / ChREBP activates metabolic gene expression / acetyl-CoA biosynthetic process / oxaloacetate metabolic process / coenzyme A metabolic process / lipid biosynthetic process / cholesterol biosynthetic process ...ATP citrate synthase activity / ATP citrate synthase / Fatty acyl-CoA biosynthesis / citrate metabolic process / ChREBP activates metabolic gene expression / acetyl-CoA biosynthetic process / oxaloacetate metabolic process / coenzyme A 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 | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.85 Å | |||||||||
![]() | Wei X / Marmorstein R | |||||||||
![]() | ![]() 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 |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 37.7 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 13.1 KB 13.1 KB | Display Display | ![]() |
Images | ![]() | 170.7 KB | ||
Filedesc metadata | ![]() | 5.9 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7liwMC ![]() 7lj9C ![]() 7llaC M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | ATP citrate lyase E599Q mutant ASH domain | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.87 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : ACLY(E599Q) with Mg2+, citrate, ATP and CoA
Entire | Name: ACLY(E599Q) with Mg2+, citrate, ATP and CoA |
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Components |
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-Supramolecule #1: ACLY(E599Q) with Mg2+, citrate, ATP and CoA
Supramolecule | Name: ACLY(E599Q) with Mg2+, citrate, ATP and CoA / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: ATP-citrate synthase
Macromolecule | Name: ATP-citrate synthase / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO / EC number: ATP citrate synthase |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 120.983141 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MSAKAISEQT GKELLYKFIC TTSAIQNRFK YARVTPDTDW ARLLQDHPWL LSQNLVVKPD QLIKRRGKLG LVGVNLTLDG VKSWLKPRL GQEATVGKAT GFLKNFLIEP FVPHSQAEEF YVCIYATREG DYVLFHHEGG VDVGDVDAKA QKLLVGVDEK L NPEDIKKH ...String: MSAKAISEQT GKELLYKFIC TTSAIQNRFK YARVTPDTDW ARLLQDHPWL LSQNLVVKPD QLIKRRGKLG LVGVNLTLDG VKSWLKPRL GQEATVGKAT GFLKNFLIEP FVPHSQAEEF YVCIYATREG DYVLFHHEGG VDVGDVDAKA QKLLVGVDEK L NPEDIKKH LLVHAPEDKK EILASFISGL FNFYEDLYFT YLEINPLVVT KDGVYVLDLA AKVDATADYI CKVKWGDIEF PP PFGREAY PEEAYIADLD AKSGASLKLT LLNPKGRIWT MVAGGGASVV YSDTICDLGG VNELANYGEY SGAPSEQQTY DYA KTILSL MTREKHPDGK ILIIGGSIAN FTNVAATFKG IVRAIRDYQG PLKEHEVTIF VRRGGPNYQE GLRVMGEVGK TTGI PIHVF GTETHMTAIV GMALGHRPIP NQPPTAAHTA NFLLNASGST STPAPSRTAS FSESRADEVA PAKKAKPAMP QDSVP SPRS LQGKSTTLFS RHTKAIVWGM QTRAVQGMLD FDYVCSRDEP SVAAMVYPFT GDHKQKFYWG HKEILIPVFK NMADAM RKH PEVDVLINFA SLRSAYDSTM ETMNYAQIRT IAIIAQGIPE ALTRKLIKKA DQKGVTIIGP ATVGGIKPGC FKIGNTG GM LDNILASKLY RPGSVAYVSR SGGMSNELNN IISRTTDGVY EGVAIGGDRY PGSTFMDHVL RYQDTPGVKM IVVLGEIG G TEEYKICRGI KEGRLTKPIV CWCIGTCATM FSSEVQFGHA GACANQASET AVAKNQALKE AGVFVPRSFD ELGEIIQSV YEDLVANGVI VPAQEVPPPT VPMDYSWARE LGLIRKPASF MTSICDERGQ ELIYAGMPIT EVFKEEMGIG GVLGLLWFQK RLPKYSCQF IEMCLMVTAD HGPAVSGAHN TIICARAGKD LVSSLTSGLL TIGDRFGGAL DAAAKMFSKA FDSGIIPMEF V NKMKKEGK LIMGIGHRVK SINNPDMRVQ ILKDYVRQHF PATPLLDYAL EVEKITTSKK PNLILNVDGL IGVAFVDMLR NC GSFTREE ADEYIDIGAL NGIFVLGRSM GFIGHYLDQK RLKQGLYRHP WDDISYVLPE HMSM UniProtKB: ATP-citrate synthase |
-Macromolecule #2: ADENOSINE-5'-DIPHOSPHATE
Macromolecule | Name: ADENOSINE-5'-DIPHOSPHATE / type: ligand / ID: 2 / Number of copies: 1 / Formula: ADP |
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Molecular weight | Theoretical: 427.201 Da |
Chemical component information | ![]() ChemComp-ADP: |
-Macromolecule #3: COENZYME A
Macromolecule | Name: COENZYME A / type: ligand / ID: 3 / Number of copies: 1 / Formula: COA |
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Molecular weight | Theoretical: 767.534 Da |
Chemical component information | ![]() ChemComp-COA: |
-Macromolecule #4: (2S)-2-hydroxy-2-[2-oxo-2-(phosphonooxy)ethyl]butanedioic acid
Macromolecule | Name: (2S)-2-hydroxy-2-[2-oxo-2-(phosphonooxy)ethyl]butanedioic acid type: ligand / ID: 4 / Number of copies: 1 / Formula: Y2A |
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Molecular weight | Theoretical: 272.103 Da |
Chemical component information | ![]() ChemComp-Y2A: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 Component:
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TALOS ARCTICA |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm |
Sample stage | Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Talos Arctica / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: NONE |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 2.85 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 800000 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3) |
-Atomic model buiding 1
Refinement | Protocol: OTHER |
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Output model | ![]() PDB-7liw: |