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- PDB-6dmb: Cryo-EM structure of human Ptch1 -

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Basic information

Entry
Database: PDB / ID: 6dmb
TitleCryo-EM structure of human Ptch1
ComponentsProtein patched homolog 1
KeywordsPROTEIN BINDING / Receptor / RND family
Function / homology
Function and homology information


neural plate axis specification / cell differentiation involved in kidney development / hedgehog receptor activity / response to chlorate / cell proliferation involved in metanephros development / smoothened binding / neural tube patterning / hedgehog family protein binding / Ligand-receptor interactions / hindlimb morphogenesis ...neural plate axis specification / cell differentiation involved in kidney development / hedgehog receptor activity / response to chlorate / cell proliferation involved in metanephros development / smoothened binding / neural tube patterning / hedgehog family protein binding / Ligand-receptor interactions / hindlimb morphogenesis / epidermal cell fate specification / spinal cord motor neuron differentiation / prostate gland development / Activation of SMO / negative regulation of cell division / patched binding / limb morphogenesis / somite development / dorsal/ventral neural tube patterning / cellular response to cholesterol / smooth muscle tissue development / pharyngeal system development / mammary gland duct morphogenesis / mammary gland epithelial cell differentiation / cell fate determination / commissural neuron axon guidance / metanephric collecting duct development / regulation of smoothened signaling pathway / dorsal/ventral pattern formation / Class B/2 (Secretin family receptors) / embryonic limb morphogenesis / cholesterol binding / ciliary membrane / smoothened signaling pathway / negative regulation of multicellular organism growth / branching involved in ureteric bud morphogenesis / positive regulation of epidermal cell differentiation / spermatid development / regulation of mitotic cell cycle / dendritic growth cone / positive regulation of cholesterol efflux / keratinocyte proliferation / negative regulation of keratinocyte proliferation / negative regulation of osteoblast differentiation / embryonic organ development / Hedgehog 'off' state / negative regulation of smoothened signaling pathway / axonal growth cone / response to mechanical stimulus / heart morphogenesis / response to retinoic acid / negative regulation of stem cell proliferation / cyclin binding / stem cell proliferation / neural tube closure / liver regeneration / caveola / protein localization to plasma membrane / animal organ morphogenesis / Hedgehog 'on' state / brain development / negative regulation of DNA-binding transcription factor activity / protein processing / endocytic vesicle membrane / regulation of protein localization / glucose homeostasis / response to estradiol / apical part of cell / heparin binding / midbody / in utero embryonic development / response to xenobiotic stimulus / intracellular membrane-bounded organelle / protein-containing complex binding / perinuclear region of cytoplasm / positive regulation of DNA-templated transcription / negative regulation of transcription by RNA polymerase II / plasma membrane
Similarity search - Function
Transmembrane receptor, patched / Protein patched/dispatched / Patched family / Sterol-sensing domain (SSD) profile. / Sterol-sensing domain
Similarity search - Domain/homology
CHOLESTEROL HEMISUCCINATE / Protein patched homolog 1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.9 Å
AuthorsYan, N. / Gong, X. / Qian, H.W.
Funding support China, 2items
OrganizationGrant numberCountry
National Science Foundation (NSF, China)31621092, 31630017, 31611130036 China
National Basic Research Program of China (973 Program)2015CB910101 China
CitationJournal: Science / Year: 2018
Title: Structural basis for the recognition of Sonic Hedgehog by human Patched1.
Authors: Xin Gong / Hongwu Qian / Pingping Cao / Xin Zhao / Qiang Zhou / Jianlin Lei / Nieng Yan /
Abstract: The Hedgehog (Hh) pathway involved in development and regeneration is activated by the extracellular binding of Hh to the membrane receptor Patched (Ptch). We report the structures of human Ptch1 ...The Hedgehog (Hh) pathway involved in development and regeneration is activated by the extracellular binding of Hh to the membrane receptor Patched (Ptch). We report the structures of human Ptch1 alone and in complex with the N-terminal domain of human Sonic hedgehog (ShhN) at resolutions of 3.9 and 3.6 angstroms, respectively, as determined by cryo-electron microscopy. Ptch1 comprises two interacting extracellular domains, ECD1 and ECD2, and 12 transmembrane segments (TMs), with TMs 2 to 6 constituting the sterol-sensing domain (SSD). Two steroid-shaped densities are resolved in both structures, one enclosed by ECD1/2 and the other in the membrane-facing cavity of the SSD. Structure-guided mutational analysis shows that interaction between ShhN and Ptch1 is steroid-dependent. The structure of a steroid binding-deficient Ptch1 mutant displays pronounced conformational rearrangements.
History
DepositionJun 4, 2018Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jul 11, 2018Provider: repository / Type: Initial release
Revision 1.1Aug 22, 2018Group: Data collection / Database references / Category: citation / Item: _citation.journal_volume
Revision 1.2Dec 18, 2019Group: Author supporting evidence / Other / Category: atom_sites / pdbx_audit_support
Item: _atom_sites.fract_transf_matrix[1][1] / _atom_sites.fract_transf_matrix[2][2] ..._atom_sites.fract_transf_matrix[1][1] / _atom_sites.fract_transf_matrix[2][2] / _atom_sites.fract_transf_matrix[3][3] / _pdbx_audit_support.funding_organization
Revision 2.0Jul 29, 2020Group: Atomic model / Data collection ...Atomic model / Data collection / Derived calculations / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / entity / pdbx_branch_scheme / pdbx_chem_comp_identifier / pdbx_entity_branch / pdbx_entity_branch_descriptor / pdbx_entity_branch_link / pdbx_entity_branch_list / pdbx_entity_nonpoly / pdbx_nonpoly_scheme / pdbx_struct_assembly_gen / struct_asym / struct_conn / struct_site / struct_site_gen
Item: _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ..._atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_asym_id / _atom_site.auth_seq_id / _atom_site.label_asym_id / _atom_site.label_entity_id / _chem_comp.name / _chem_comp.type / _pdbx_entity_nonpoly.entity_id / _pdbx_entity_nonpoly.name / _pdbx_struct_assembly_gen.asym_id_list / _struct_conn.pdbx_role / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id
Description: Carbohydrate remediation / Provider: repository / Type: Remediation

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Structure visualization

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Assembly

Deposited unit
A: Protein patched homolog 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)152,6939
Polymers150,1901
Non-polymers2,5048
Water0
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

#1: Protein Protein patched homolog 1 / PTC1


Mass: 150189.578 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PTCH1, PTCH / Production host: Homo sapiens (human) / References: UniProt: Q13635
#2: 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.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-Glycam 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
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}}LINUCSPDB-CARE
#3: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-Acetylglucosamine


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 5
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
#4: Chemical ChemComp-Y01 / CHOLESTEROL HEMISUCCINATE


Mass: 486.726 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C31H50O4

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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: Patch1 / Type: ORGANELLE OR CELLULAR COMPONENT / Entity ID: #1 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 8
SpecimenConc.: 15 mg/ml / Embedding 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
Image recordingElectron dose: 50 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.13_2998: / Classification: refinement
EM software
IDNameCategory
4GctfCTF correction
10RELIONinitial Euler assignment
11RELIONfinal Euler assignment
13RELION3D reconstruction
CTF correctionType: NONE
3D reconstructionResolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 94445 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0088151
ELECTRON MICROSCOPYf_angle_d1.30511112
ELECTRON MICROSCOPYf_dihedral_angle_d11.2374803
ELECTRON MICROSCOPYf_chiral_restr0.0671291
ELECTRON MICROSCOPYf_plane_restr0.0091383

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