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- PDB-8k0e: Human collagen prolyl processing enzyme complex, P3H1/CRTAP heter... -

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Basic information

Entry
Database: PDB / ID: 8k0e
TitleHuman collagen prolyl processing enzyme complex, P3H1/CRTAP heterodimer
Components
  • Cartilage-associated protein
  • Prolyl 3-hydroxylase 1
KeywordsCYTOSOLIC PROTEIN / complex / hydroxylase / collagen / ER protein
Function / homology
Function and homology information


procollagen-proline 3-dioxygenase / procollagen-proline 3-dioxygenase activity / protein hydroxylation / negative regulation of post-translational protein modification / Collagen biosynthesis and modifying enzymes / collagen metabolic process / collagen fibril organization / L-ascorbic acid binding / regulation of protein secretion / : ...procollagen-proline 3-dioxygenase / procollagen-proline 3-dioxygenase activity / protein hydroxylation / negative regulation of post-translational protein modification / Collagen biosynthesis and modifying enzymes / collagen metabolic process / collagen fibril organization / L-ascorbic acid binding / regulation of protein secretion / : / bone development / positive regulation of neuron projection development / protein folding / spermatogenesis / protein stabilization / iron ion binding / endoplasmic reticulum lumen / negative regulation of cell population proliferation / endoplasmic reticulum / protein-containing complex / extracellular space / extracellular exosome / nucleus / membrane / cytoplasm
Similarity search - Function
Prolyl 3-hydroxylase / : / Leprecan family TPR-like repeat region / Prolyl 4-hydroxylase alpha subunit, Fe(2+) 2OG dioxygenase domain / 2OG-Fe(II) oxygenase superfamily / Prolyl 4-hydroxylase, alpha subunit / Prolyl 4-hydroxylase alpha subunit homologues. / Endoplasmic reticulum targeting sequence. / Oxoglutarate/iron-dependent dioxygenase / Fe(2+) 2-oxoglutarate dioxygenase domain profile. / Tetratricopeptide-like helical domain superfamily
Similarity search - Domain/homology
: / Cartilage-associated protein / Prolyl 3-hydroxylase 1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.65 Å
AuthorsLi, W. / Peng, J. / Yao, D. / Rao, B. / Xia, Y. / Wang, Q. / Li, S. / Cao, M. / Shen, Y. / Ma, P. ...Li, W. / Peng, J. / Yao, D. / Rao, B. / Xia, Y. / Wang, Q. / Li, S. / Cao, M. / Shen, Y. / Ma, P. / Liao, R. / Qin, A. / Zhao, J. / Cao, Y.
Funding support China, 2items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)82072468 China
National Natural Science Foundation of China (NSFC)82272519 China
CitationJournal: Nat Commun / Year: 2024
Title: The structural basis for the collagen processing by human P3H1/CRTAP/PPIB ternary complex.
Authors: Wenguo Li / Junjiang Peng / Deqiang Yao / Bing Rao / Ying Xia / Qian Wang / Shaobai Li / Mi Cao / Yafeng Shen / Peixiang Ma / Rijing Liao / An Qin / Jie Zhao / Yu Cao /
Abstract: Collagen posttranslational processing is crucial for its proper assembly and function. Disruption of collagen processing leads to tissue development and structure disorders like osteogenesis ...Collagen posttranslational processing is crucial for its proper assembly and function. Disruption of collagen processing leads to tissue development and structure disorders like osteogenesis imperfecta (OI). OI-related collagen processing machinery includes prolyl 3-hydroxylase 1 (P3H1), peptidyl-prolyl cis-trans isomerase B (PPIB), and cartilage-associated protein (CRTAP), with their structural organization and mechanism unclear. We determine cryo-EM structures of the P3H1/CRTAP/PPIB complex. The active sites of P3H1 and PPIB form a face-to-face bifunctional reaction center, indicating a coupled modification mechanism. The structure of the P3H1/CRTAP/PPIB/collagen peptide complex reveals multiple binding sites, suggesting a substrate interacting zone. Unexpectedly, a dual-ternary complex is observed, and the balance between ternary and dual-ternary states can be altered by mutations in the P3H1/PPIB active site and the addition of PPIB inhibitors. These findings provide insights into the structural basis of collagen processing by P3H1/CRTAP/PPIB and the molecular pathology of collagen-related disorders.
History
DepositionJul 8, 2023Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Sep 18, 2024Provider: repository / Type: Initial release
Revision 1.1Nov 13, 2024Group: Data collection / Structure summary
Category: em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Prolyl 3-hydroxylase 1
B: Cartilage-associated protein
hetero molecules


Theoretical massNumber of molelcules
Total (without water)135,9887
Polymers134,2352
Non-polymers1,7535
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 Prolyl 3-hydroxylase 1 / Growth suppressor 1 / Leucine- and proline-enriched proteoglycan 1 / Leprecan-1


Mass: 83485.727 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: P3H1, GROS1, LEPRE1, PSEC0109 / Production host: Homo sapiens (human)
References: UniProt: Q32P28, procollagen-proline 3-dioxygenase
#2: Protein Cartilage-associated protein


Mass: 50749.184 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CRTAP, CASP / Production host: Homo sapiens (human) / References: UniProt: O75718
#3: Polysaccharide
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}LINUCSPDB-CARE
#4: Chemical ChemComp-FE / FE (III) ION


Mass: 55.845 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Fe / 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: A protein modification binary complex / Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.5
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: SPOT SCAN
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2600 nm / Nominal defocus min: 1500 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM softwareName: PHENIX / Version: 1.20.1_4487: / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.65 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 162963 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0038505
ELECTRON MICROSCOPYf_angle_d0.69611515
ELECTRON MICROSCOPYf_dihedral_angle_d10.7631179
ELECTRON MICROSCOPYf_chiral_restr0.041226
ELECTRON MICROSCOPYf_plane_restr0.0051508

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