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- PDB-8zj1: Human left ventricle F-actin -

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Basic information

Entry
Database: PDB / ID: 8zj1
TitleHuman left ventricle F-actin
ComponentsActin, alpha cardiac muscle 1
KeywordsPROTEIN FIBRIL / filament actin
Function / homology
Function and homology information


actin filament-based movement / actin-myosin filament sliding / cardiac myofibril assembly / Formation of the dystrophin-glycoprotein complex (DGC) / cardiac muscle tissue morphogenesis / Striated Muscle Contraction / actomyosin structure organization / I band / RHOB GTPase cycle / microfilament motor activity ...actin filament-based movement / actin-myosin filament sliding / cardiac myofibril assembly / Formation of the dystrophin-glycoprotein complex (DGC) / cardiac muscle tissue morphogenesis / Striated Muscle Contraction / actomyosin structure organization / I band / RHOB GTPase cycle / microfilament motor activity / heart contraction / myosin binding / mesenchyme migration / skeletal muscle thin filament assembly / RHOA GTPase cycle / cardiac muscle contraction / actin filament organization / sarcomere / actin filament / filopodium / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / lamellipodium / actin cytoskeleton / cell body / response to ethanol / blood microparticle / hydrolase activity / response to xenobiotic stimulus / focal adhesion / positive regulation of gene expression / negative regulation of apoptotic process / glutamatergic synapse / extracellular space / extracellular exosome / ATP binding / membrane / cytoplasm / cytosol
Similarity search - Function
Actins signature 1. / Actin, conserved site / Actins signature 2. / Actin/actin-like conserved site / Actins and actin-related proteins signature. / Actin / Actin family / Actin / ATPase, nucleotide binding domain
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / Actin, alpha cardiac muscle 1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 4.25 Å
AuthorsLi, D.N. / Zhao, Q.Y. / Liu, C.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: To Be Published
Title: Human left ventricle F-actin
Authors: Li, D.N. / Zhao, Q.Y.
History
DepositionMay 14, 2024Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Jan 29, 2025Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
C: Actin, alpha cardiac muscle 1
D: Actin, alpha cardiac muscle 1
E: Actin, alpha cardiac muscle 1
F: Actin, alpha cardiac muscle 1
A: Actin, alpha cardiac muscle 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)208,84710
Polymers206,7115
Non-polymers2,1365
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein
Actin, alpha cardiac muscle 1 / Alpha-cardiac actin


Mass: 41342.145 Da / Num. of mol.: 5 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human)
References: UniProt: P68032, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement
#2: Chemical
ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE


Mass: 427.201 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C10H15N5O10P2 / Feature type: SUBJECT OF INVESTIGATION / Comment: ADP, energy-carrying molecule*YM
Has ligand of interestY
Has protein modificationN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: FILAMENT / 3D reconstruction method: helical reconstruction

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Sample preparation

ComponentName: Human left ventricle F-actin / Type: ORGANELLE OR CELLULAR COMPONENT / Entity ID: #1 / Source: NATURAL
Source (natural)Organism: Homo sapiens (human)
Buffer solutionpH: 8
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: 2000 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 55 e/Å2 / Film or detector model: GATAN K3 BIOCONTINUUM (6k x 4k)

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Processing

EM softwareName: PHENIX / Version: 1.15.2_3472: / Category: model refinement
CTF correctionType: NONE
Helical symmertyAngular rotation/subunit: -166.66 ° / Axial rise/subunit: 27.3 Å / Axial symmetry: C1
3D reconstructionResolution: 4.25 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 28275 / Symmetry type: HELICAL
RefinementStereochemistry target values: GeoStd + Monomer Library + CDL v1.2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.011914950
ELECTRON MICROSCOPYf_angle_d0.804320290
ELECTRON MICROSCOPYf_chiral_restr0.05662255
ELECTRON MICROSCOPYf_plane_restr0.00542595
ELECTRON MICROSCOPYf_dihedral_angle_d11.16938995

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