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- PDB-8xl0: Citrate-induced filament of human acetyl-coenzyme A carboxylase 1... -

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Basic information

Entry
Database: PDB / ID: 8xl0
TitleCitrate-induced filament of human acetyl-coenzyme A carboxylase 1 (ACC1-citrate)
ComponentsAcetyl-CoA carboxylase 1
KeywordsLIGASE / Biotin-dependent carboxylase
Function / homology
Function and homology information


fatty-acyl-CoA biosynthetic process / acetyl-CoA carboxylase / Defective HLCS causes multiple carboxylase deficiency / Biotin transport and metabolism / Fatty acyl-CoA biosynthesis / acetyl-CoA metabolic process / malonyl-CoA biosynthetic process / protein metabolic process / ChREBP activates metabolic gene expression / acetyl-CoA carboxylase activity ...fatty-acyl-CoA biosynthetic process / acetyl-CoA carboxylase / Defective HLCS causes multiple carboxylase deficiency / Biotin transport and metabolism / Fatty acyl-CoA biosynthesis / acetyl-CoA metabolic process / malonyl-CoA biosynthetic process / protein metabolic process / ChREBP activates metabolic gene expression / acetyl-CoA carboxylase activity / tissue homeostasis / Carnitine shuttle / lipid homeostasis / Activation of gene expression by SREBF (SREBP) / fibrillar center / fatty acid biosynthetic process / cellular response to prostaglandin E stimulus / actin cytoskeleton / protein homotetramerization / mitochondrion / ATP binding / identical protein binding / metal ion binding / cytosol
Similarity search - Function
Acetyl-CoA carboxylase, central domain / : / : / Acetyl-CoA carboxylase, central region / Acetyl-CoA carboxylase, BT domain / Acetyl-coenzyme A carboxyltransferase, C-terminal / Acetyl-coenzyme A (CoA) carboxyltransferase C-terminal domain profile. / Acetyl-coenzyme A carboxyltransferase, N-terminal / Acetyl-coenzyme A (CoA) carboxyltransferase N-terminal domain profile. / Acetyl-CoA carboxylase ...Acetyl-CoA carboxylase, central domain / : / : / Acetyl-CoA carboxylase, central region / Acetyl-CoA carboxylase, BT domain / Acetyl-coenzyme A carboxyltransferase, C-terminal / Acetyl-coenzyme A (CoA) carboxyltransferase C-terminal domain profile. / Acetyl-coenzyme A carboxyltransferase, N-terminal / Acetyl-coenzyme A (CoA) carboxyltransferase N-terminal domain profile. / Acetyl-CoA carboxylase / Carboxyl transferase domain / Biotin-binding site / Biotin-requiring enzymes attachment site. / Biotin carboxylase-like, N-terminal domain / Biotin carboxylase, C-terminal / Biotin carboxylation domain / Biotin carboxylase, N-terminal domain / Biotin carboxylase C-terminal domain / Biotin carboxylation domain profile. / Biotin carboxylase C-terminal domain / Carbamoyl-phosphate synthase subdomain signature 1. / Carbamoyl-phosphate synthetase large subunit-like, ATP-binding domain / Carbamoyl-phosphate synthase L chain, ATP binding domain / Biotin-requiring enzyme / Rudiment single hybrid motif / Biotinyl/lipoyl domain profile. / Biotin/lipoyl attachment / Single hybrid motif / ATP-grasp fold, subdomain 1 / Pre-ATP-grasp domain superfamily / ATP-grasp fold / ATP-grasp fold profile. / ClpP/crotonase-like domain superfamily / Carbamoyl-phosphate synthase subdomain signature 2.
Similarity search - Domain/homology
BIOTIN / Acetyl-CoA carboxylase 1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.14 Å
AuthorsZhou, F.Y. / Zhang, Y.Y. / Zhou, Q. / Hu, Q.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: Sci Adv / Year: 2024
Title: Filament structures unveil the dynamic organization of human acetyl-CoA carboxylase.
Authors: Fayang Zhou / Yuanyuan Zhang / Yuyao Zhu / Qiang Zhou / Yigong Shi / Qi Hu /
Abstract: Human acetyl-coenzyme A (CoA) carboxylases (ACCs) catalyze the carboxylation of acetyl-CoA, which is the rate-limiting step in fatty acid synthesis. The molecular mechanism underlying the dynamic ...Human acetyl-coenzyme A (CoA) carboxylases (ACCs) catalyze the carboxylation of acetyl-CoA, which is the rate-limiting step in fatty acid synthesis. The molecular mechanism underlying the dynamic organization of ACCs is largely unknown. Here, we determined the cryo-electron microscopy (EM) structure of human ACC1 in its inactive state, which forms a unique filament structure and is in complex with acetyl-CoA. We also determined the cryo-EM structure of human ACC1 activated by dephosphorylation and citrate treatment, at a resolution of 2.55 Å. Notably, the covalently linked biotin binds to a site that is distant from the acetyl-CoA binding site when acetyl-CoA is absent, suggesting a potential coordination between biotin binding and acetyl-CoA binding. These findings provide insights into the structural dynamics and regulatory mechanisms of human ACCs.
History
DepositionDec 25, 2023Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Oct 23, 2024Provider: repository / Type: Initial release
Revision 1.1Nov 20, 2024Group: Data collection / Category: em_admin / Item: _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Acetyl-CoA carboxylase 1
B: Acetyl-CoA carboxylase 1
C: Acetyl-CoA carboxylase 1
D: Acetyl-CoA carboxylase 1
E: Acetyl-CoA carboxylase 1
F: Acetyl-CoA carboxylase 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)1,596,43811
Polymers1,595,2166
Non-polymers1,2225
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, Not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

#1: Protein
Acetyl-CoA carboxylase 1 / ACC1 / Acetyl-Coenzyme A carboxylase alpha / ACC-alpha


Mass: 265869.375 Da / Num. of mol.: 6 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q13085, acetyl-CoA carboxylase
#2: Chemical
ChemComp-BTN / BIOTIN


Mass: 244.311 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C10H16N2O3S / Feature type: SUBJECT OF INVESTIGATION
Has ligand of interestY
Has protein modificationY

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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: Citrate-induced filament of human acetyl-coenzyme A carboxylase 1 (ACC1-citrate)
Type: COMPLEX / Entity ID: #1 / Source: NATURAL
Source (natural)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4
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: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2200 nm / Nominal defocus min: 1200 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 4.14 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 36041 / Symmetry type: POINT

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