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- EMDB-24511: Structure of ACLY D1026A-substrates-asym-int -

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Basic information

Entry
Database: EMDB / ID: EMD-24511
TitleStructure of ACLY D1026A-substrates-asym-int
Map data
Sample
  • Complex: ACLY D1026A mutant in complex with CoA and citrate
    • Protein or peptide: ATP-citrate synthase
  • Ligand: ADENOSINE-5'-DIPHOSPHATE
  • Ligand: (3S)-citryl-Coenzyme A
  • Ligand: CITRATE ANION
  • Ligand: UNKNOWN LIGAND
  • Ligand: COENZYME A
  • Ligand: water
Keywordsmutant / TRANSFERASE
Function / homology
Function and homology information


ATP citrate synthase / ATP citrate synthase activity / citrate metabolic process / Fatty acyl-CoA biosynthesis / ChREBP activates metabolic gene expression / acetyl-CoA biosynthetic process / 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 / ChREBP activates metabolic gene expression / acetyl-CoA biosynthetic process / 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 / 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 ...ATP-citrate synthase / ATP-citrate synthase, citrate-binding domain / ATP citrate lyase citrate-binding / 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-like, small alpha subdomain / Citrate synthase superfamily / Citrate synthase, C-terminal domain / Citrate synthase / NAD(P)-binding domain superfamily
Similarity search - Domain/homology
ATP-citrate synthase
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.6 Å
AuthorsWei X / Marmorstein R
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) United States
CitationJournal: Nat Commun / Year: 2023
Title: Allosteric role of the citrate synthase homology domain of ATP citrate lyase.
Authors: Xuepeng Wei / Kollin Schultz / Hannah L Pepper / Emily Megill / Austin Vogt / Nathaniel W Snyder / Ronen Marmorstein /
Abstract: ATP citrate lyase (ACLY) is the predominant nucleocytosolic source of acetyl-CoA and is aberrantly regulated in many diseases making it an attractive therapeutic target. Structural studies of ACLY ...ATP citrate lyase (ACLY) is the predominant nucleocytosolic source of acetyl-CoA and is aberrantly regulated in many diseases making it an attractive therapeutic target. Structural studies of ACLY reveal a central homotetrameric core citrate synthase homology (CSH) module flanked by acyl-CoA synthetase homology (ASH) domains, with ATP and citrate binding the ASH domain and CoA binding the ASH-CSH interface to produce acetyl-CoA and oxaloacetate products. The specific catalytic role of the CSH module and an essential D1026A residue contained within it has been a matter of debate. Here, we report biochemical and structural analysis of an ACLY-D1026A mutant demonstrating that this mutant traps a (3S)-citryl-CoA intermediate in the ASH domain in a configuration that is incompatible with the formation of acetyl-CoA, is able to convert acetyl-CoA and OAA to (3S)-citryl-CoA in the ASH domain, and can load CoA and unload acetyl-CoA in the CSH module. Together, this data support an allosteric role for the CSH module in ACLY catalysis.
History
DepositionJul 22, 2021-
Header (metadata) releaseMay 10, 2023-
Map releaseMay 10, 2023-
UpdateJun 5, 2024-
Current statusJun 5, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_24511.png

Downloads & links

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Map

FileDownload / File: emd_24511.map.gz / Format: CCP4 / Size: 40.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.83 Å/pix.
x 220 pix.
= 182.6 Å		0.83 Å/pix.
x 220 pix.
= 182.6 Å		0.83 Å/pix.
x 220 pix.
= 182.6 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.83 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.2
Minimum - Maximum-1.5139046 - 3.024172
Average (Standard dev.)0.01110402 (±0.15694864)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions220220220
Spacing220220220
CellA=B=C: 182.59999 Å
α=β=γ: 90.0 °

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Supplemental data

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Sample components

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Entire : ACLY D1026A mutant in complex with CoA and citrate

EntireName: ACLY D1026A mutant in complex with CoA and citrate
Components
  • Complex: ACLY D1026A mutant in complex with CoA and citrate
    • Protein or peptide: ATP-citrate synthase
  • Ligand: ADENOSINE-5'-DIPHOSPHATE
  • Ligand: (3S)-citryl-Coenzyme A
  • Ligand: CITRATE ANION
  • Ligand: UNKNOWN LIGAND
  • Ligand: COENZYME A
  • Ligand: water

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Supramolecule #1: ACLY D1026A mutant in complex with CoA and citrate

SupramoleculeName: ACLY D1026A mutant in complex with CoA and citrate / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 480 KDa

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Macromolecule #1: ATP-citrate synthase

MacromoleculeName: ATP-citrate synthase / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO / EC number: ATP citrate synthase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 120.940125 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: 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 IAIIAEGIPE 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 PNLILNVAGL IGVAFVDMLR NC GSFTREE ADEYIDIGAL NGIFVLGRSM GFIGHYLDQK RLKQGLYRHP WDDISYVLPE HMSM

UniProtKB: ATP-citrate synthase

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Macromolecule #2: ADENOSINE-5'-DIPHOSPHATE

MacromoleculeName: ADENOSINE-5'-DIPHOSPHATE / type: ligand / ID: 2 / Number of copies: 3 / Formula: ADP
Molecular weightTheoretical: 427.201 Da
Chemical component information

ChemComp-ADP:
ADENOSINE-5'-DIPHOSPHATE / ADP, energy-carrying molecule*YM

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Macromolecule #3: (3S)-citryl-Coenzyme A

MacromoleculeName: (3S)-citryl-Coenzyme A / type: ligand / ID: 3 / Number of copies: 3 / Formula: Q5B
Molecular weightTheoretical: 941.642 Da
Chemical component information

ChemComp-Q5B:
(3S)-citryl-Coenzyme A

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Macromolecule #4: CITRATE ANION

MacromoleculeName: CITRATE ANION / type: ligand / ID: 4 / Number of copies: 4 / Formula: FLC
Molecular weightTheoretical: 189.1 Da
Chemical component information

ChemComp-FLC:
CITRATE ANION

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Macromolecule #5: UNKNOWN LIGAND

MacromoleculeName: UNKNOWN LIGAND / type: ligand / ID: 5 / Number of copies: 2 / Formula: UNL
Molecular weightTheoretical: 767.534 Da
Chemical component information


ChemComp, No image

ChemComp-UNL:
Unknown ligand

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Macromolecule #6: COENZYME A

MacromoleculeName: COENZYME A / type: ligand / ID: 6 / Number of copies: 4 / Formula: COA
Molecular weightTheoretical: 767.534 Da
Chemical component information

ChemComp-COA:
COENZYME A

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Macromolecule #7: water

MacromoleculeName: water / type: ligand / ID: 7 / Number of copies: 162 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
WATER

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration4.5 mg/mL
BufferpH: 7.5
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 40.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: OTHER
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.6 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 237362
Initial angle assignmentType: COMMON LINE
Final angle assignmentType: COMMON LINE

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