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- PDB-8ps1: Asymmetric unit of the yeast fatty acid synthase in the non-rotat... -

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Basic information

Entry
Database: PDB / ID: 8ps1
TitleAsymmetric unit of the yeast fatty acid synthase in the non-rotated state with ACP at the ketosynthase domain (FASamn sample)
Components
  • Fatty acid synthase subunit alpha
  • Fatty acid synthase subunit beta
KeywordsCYTOSOLIC PROTEIN / Fatty acid synthase / acyl carrier protein / FAS / ACP
Function / homology
Function and homology information


: / fatty-acyl-CoA synthase system / : / fatty-acyl-CoA synthase activity / fatty acid synthase complex / (3R)-hydroxyacyl-[acyl-carrier-protein] dehydratase activity / [acyl-carrier-protein] S-acetyltransferase / palmitoyltransferase activity / [acyl-carrier-protein] S-acetyltransferase activity / oleoyl-[acyl-carrier-protein] hydrolase ...: / fatty-acyl-CoA synthase system / : / fatty-acyl-CoA synthase activity / fatty acid synthase complex / (3R)-hydroxyacyl-[acyl-carrier-protein] dehydratase activity / [acyl-carrier-protein] S-acetyltransferase / palmitoyltransferase activity / [acyl-carrier-protein] S-acetyltransferase activity / oleoyl-[acyl-carrier-protein] hydrolase / (3R)-3-hydroxypalmitoyl-[acyl-carrier-protein] dehydratase activity / holo-[acyl-carrier-protein] synthase activity / [acyl-carrier-protein] S-malonyltransferase / [acyl-carrier-protein] S-malonyltransferase activity / fatty acid synthase activity / 3-hydroxyacyl-[acyl-carrier-protein] dehydratase / (3R)-3-hydroxymyristoyl-[acyl-carrier-protein] dehydratase activity / beta-ketoacyl-[acyl-carrier-protein] synthase I / 3-oxoacyl-[acyl-carrier-protein] reductase / 3-oxoacyl-[acyl-carrier-protein] reductase (NADPH) activity / enoyl-[acyl-carrier-protein] reductase (NADH) / long-chain fatty acid biosynthetic process / enoyl-[acyl-carrier-protein] reductase (NADH) activity / 3-oxoacyl-[acyl-carrier-protein] synthase activity / lipid droplet / magnesium ion binding / mitochondrion / cytosol / cytoplasm
Similarity search - Function
: / Fatty acid synthase, meander beta sheet domain / Fatty acid synthase subunit beta, N-terminal domain / N-terminal domain in fatty acid synthase subunit beta / Fatty acid synthase meander beta sheet domain / Fatty acid synthase beta subunit AflB /Fas1-like, fungi / Fatty acid synthase subunit alpha, acyl carrier domain / Fatty acid synthase subunit alpha Acyl carrier domain / Fatty acid synthase beta subunit AflB /Fas1-like, central domain / Fatty acid synthase alpha subunit, yeast ...: / Fatty acid synthase, meander beta sheet domain / Fatty acid synthase subunit beta, N-terminal domain / N-terminal domain in fatty acid synthase subunit beta / Fatty acid synthase meander beta sheet domain / Fatty acid synthase beta subunit AflB /Fas1-like, fungi / Fatty acid synthase subunit alpha, acyl carrier domain / Fatty acid synthase subunit alpha Acyl carrier domain / Fatty acid synthase beta subunit AflB /Fas1-like, central domain / Fatty acid synthase alpha subunit, yeast / Fatty acid synthase subunit beta/Fas1-like, helical / Fatty acid synthase type I, helical / Fatty acid synthase type I helical domain / Fatty acid synthase / N-terminal of MaoC-like dehydratase / N-terminal half of MaoC dehydratase / Starter unit:ACP transacylase / Starter unit:ACP transacylase in aflatoxin biosynthesis / Holo-[acyl carrier protein] synthase / Phosphopantetheine-protein transferase domain / MaoC-like dehydratase domain / MaoC like domain / 4'-phosphopantetheinyl transferase domain / 4'-phosphopantetheinyl transferase domain superfamily / 4'-phosphopantetheinyl transferase superfamily / HotDog domain superfamily / Acyl transferase domain superfamily / Acyl transferase / Acyl transferase domain / Acyl transferase domain in polyketide synthase (PKS) enzymes. / Acyl transferase/acyl hydrolase/lysophospholipase / Ketosynthase family 3 (KS3) domain profile. / Beta-ketoacyl synthase, active site / Ketosynthase family 3 (KS3) active site signature. / Polyketide synthase, beta-ketoacyl synthase domain / Beta-ketoacyl synthase, N-terminal / Beta-ketoacyl synthase, C-terminal / Beta-ketoacyl synthase, N-terminal domain / Beta-ketoacyl synthase, C-terminal domain / Phosphopantetheine attachment site. / Thiolase-like / Carrier protein (CP) domain profile. / Phosphopantetheine binding ACP domain / Aldolase-type TIM barrel / NAD(P)-binding domain superfamily
Similarity search - Domain/homology
COENZYME A / FLAVIN MONONUCLEOTIDE / NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE / Fatty acid synthase subunit beta / Fatty acid synthase subunit alpha
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (brewer's yeast)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.8 Å
AuthorsSingh, K. / Bunzel, G. / Graf, B. / Yip, K.M. / Stark, H. / Chari, A.
Funding support Germany, 1items
OrganizationGrant numberCountry
Max Planck Society Germany
CitationJournal: Cell / Year: 2023
Title: Reconstruction of a fatty acid synthesis cycle from acyl carrier protein and cofactor structural snapshots.
Authors: Kashish Singh / Georg Bunzel / Benjamin Graf / Ka Man Yip / Meina Neumann-Schaal / Holger Stark / Ashwin Chari /
Abstract: Fatty acids (FAs) play a central metabolic role in living cells as constituents of membranes, cellular energy reserves, and second messenger precursors. A 2.6 MDa FA synthase (FAS), where the ...Fatty acids (FAs) play a central metabolic role in living cells as constituents of membranes, cellular energy reserves, and second messenger precursors. A 2.6 MDa FA synthase (FAS), where the enzymatic reactions and structures are known, is responsible for FA biosynthesis in yeast. Essential in the yeast FAS catalytic cycle is the acyl carrier protein (ACP) that actively shuttles substrates, biosynthetic intermediates, and products from one active site to another. We resolve the S. cerevisiae FAS structure at 1.9 Å, elucidating cofactors and water networks involved in their recognition. Structural snapshots of ACP domains bound to various enzymatic domains allow the reconstruction of a full yeast FA biosynthesis cycle. The structural information suggests that each FAS functional unit could accommodate exogenous proteins to incorporate various enzymatic activities, and we show proof-of-concept experiments where ectopic proteins are used to modulate FAS product profiles.
History
DepositionJul 13, 2023Deposition site: PDBE / Processing site: PDBE
Revision 1.0Nov 22, 2023Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Fatty acid synthase subunit alpha
B: Fatty acid synthase subunit alpha
G: Fatty acid synthase subunit beta
hetero molecules


Theoretical massNumber of molelcules
Total (without water)646,1067
Polymers643,3953
Non-polymers2,7114
Water0
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area16220 Å2
ΔGint-79 kcal/mol
Surface area157590 Å2
MethodPISA

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Components

#1: Protein Fatty acid synthase subunit alpha /


Mass: 207184.422 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast)
References: UniProt: P19097, fatty-acyl-CoA synthase system, 3-oxoacyl-[acyl-carrier-protein] reductase, beta-ketoacyl-[acyl-carrier-protein] synthase I
#2: Protein Fatty acid synthase subunit beta /


Mass: 229026.406 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast)
References: UniProt: P07149, fatty-acyl-CoA synthase system, 3-hydroxyacyl-[acyl-carrier-protein] dehydratase, enoyl-[acyl-carrier-protein] reductase (NADH), [acyl-carrier-protein] S- ...References: UniProt: P07149, fatty-acyl-CoA synthase system, 3-hydroxyacyl-[acyl-carrier-protein] dehydratase, enoyl-[acyl-carrier-protein] reductase (NADH), [acyl-carrier-protein] S-acetyltransferase, [acyl-carrier-protein] S-malonyltransferase, oleoyl-[acyl-carrier-protein] hydrolase
#3: Chemical ChemComp-NAP / NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE / 2'-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE / Nicotinamide adenine dinucleotide phosphate


Mass: 743.405 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C21H28N7O17P3 / Feature type: SUBJECT OF INVESTIGATION
#4: Chemical ChemComp-FMN / FLAVIN MONONUCLEOTIDE / RIBOFLAVIN MONOPHOSPHATE / Flavin mononucleotide


Mass: 456.344 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C17H21N4O9P
#5: Chemical ChemComp-COA / COENZYME A / Coenzyme A


Mass: 767.534 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C21H36N7O16P3S / 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: Yeast fatty acid synthase / Type: COMPLEX / Entity ID: #2 / Source: NATURAL
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Buffer solutionpH: 6.5
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 FIELDBright-field microscopy / Nominal defocus max: 25000 nm / Nominal defocus min: 5000 nm
Image recordingElectron dose: 50 e/Å2 / Detector mode: COUNTING / Film or detector model: FEI FALCON III (4k x 4k)

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Processing

EM software
IDNameVersionCategory
2EPUimage acquisition
4CTFFIND4.1.14CTF correction
10RELION3.1initial Euler assignment
11RELION3.1final Euler assignment
13RELION3.13D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 121299 / Symmetry type: POINT
RefinementResolution: 2.8→183.57 Å / Cor.coef. Fo:Fc: 0.932 / SU B: 7.044 / SU ML: 0.132 / ESU R: 0.207
Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES
Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflection
Rwork0.28294 --
obs0.28294 556607 100 %
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 60.34 Å2
Baniso -1Baniso -2Baniso -3
1--0.06 Å2-0.56 Å20.29 Å2
2---0.12 Å2-0.05 Å2
3---0.17 Å2
Refinement stepCycle: 1 / Total: 29787
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
ELECTRON MICROSCOPYr_bond_refined_d0.010.01330416
ELECTRON MICROSCOPYr_bond_other_d0.0020.01728970
ELECTRON MICROSCOPYr_angle_refined_deg1.5781.64941226
ELECTRON MICROSCOPYr_angle_other_deg1.2151.58166947
ELECTRON MICROSCOPYr_dihedral_angle_1_deg6.57953774
ELECTRON MICROSCOPYr_dihedral_angle_2_deg35.53223.5231476
ELECTRON MICROSCOPYr_dihedral_angle_3_deg15.009155325
ELECTRON MICROSCOPYr_dihedral_angle_4_deg16.61715137
ELECTRON MICROSCOPYr_chiral_restr0.0680.24019
ELECTRON MICROSCOPYr_gen_planes_refined0.0070.0234336
ELECTRON MICROSCOPYr_gen_planes_other0.0020.026678
ELECTRON MICROSCOPYr_nbd_refined
ELECTRON MICROSCOPYr_nbd_other
ELECTRON MICROSCOPYr_nbtor_refined
ELECTRON MICROSCOPYr_nbtor_other
ELECTRON MICROSCOPYr_xyhbond_nbd_refined
ELECTRON MICROSCOPYr_xyhbond_nbd_other
ELECTRON MICROSCOPYr_metal_ion_refined
ELECTRON MICROSCOPYr_metal_ion_other
ELECTRON MICROSCOPYr_symmetry_vdw_refined
ELECTRON MICROSCOPYr_symmetry_vdw_other
ELECTRON MICROSCOPYr_symmetry_hbond_refined
ELECTRON MICROSCOPYr_symmetry_hbond_other
ELECTRON MICROSCOPYr_symmetry_metal_ion_refined
ELECTRON MICROSCOPYr_symmetry_metal_ion_other
ELECTRON MICROSCOPYr_mcbond_it5.2125.74715117
ELECTRON MICROSCOPYr_mcbond_other5.2025.74715116
ELECTRON MICROSCOPYr_mcangle_it8.3718.62918884
ELECTRON MICROSCOPYr_mcangle_other8.3748.6318885
ELECTRON MICROSCOPYr_scbond_it6.7546.81215299
ELECTRON MICROSCOPYr_scbond_other6.7546.81215300
ELECTRON MICROSCOPYr_scangle_it
ELECTRON MICROSCOPYr_scangle_other11.4299.78122343
ELECTRON MICROSCOPYr_long_range_B_refined14.61665.29132019
ELECTRON MICROSCOPYr_long_range_B_other14.61965.29732020
ELECTRON MICROSCOPYr_rigid_bond_restr
ELECTRON MICROSCOPYr_sphericity_free
ELECTRON MICROSCOPYr_sphericity_bonded
LS refinement shellResolution: 2.8→2.873 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0 0 -
Rwork0.461 41081 -
obs--100 %

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